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Toyota Supra Forums! Join the Supra forum! (http://www.toyota-supra.info/forums/)
-   MKIII FAQ (http://www.toyota-supra.info/forums/mkiii-faq/)
-   -   Blown Head Gasket repair w/pics (http://www.toyota-supra.info/forums/mkiii-faq/7128-blown-head-gasket-repair-w-pics.html)

new supra guy 05-27-2009 01:16 AM
Quote:
Originally Posted by IHateHacks (Post 37440)
Talk about getting the shaft. If anybody wants to know how much a Toyota geniune timing belt and tensioner are:

Timing Belt- $38.37 not bad at all (I get a discount I paid $29.32)

Tensioner spring- $6.51

Tensioner idler sub assembly- $136.28!!!! (with my discount its still $96.00!!!)

Now I know why most people don't replace the tensioner!!!

Ordered my ARP bolts, should have them by the end of the week ($109 shipped).
Should have gone with a gates timing belt kit, it comes with belt, tensioner, cam seals and crank seal. i got mine for likr 70 bucks

IHateHacks 05-27-2009 11:58 AM
Advance auto, autozone, napa did not carry the cam belt tensioner 2 years ago.

Now with a higher demand, they made a knock off.

I still wouldn't bolt anything on my 7M from "the zone".

evosupra 05-28-2009 09:15 PM
about the bolts not coming off the head !
 
Hi there, was reading through your post ...
Dont go with the stock crappy gasket ! go with Cometic, HKS,or Titan.

Do yourself a favor, when the head bolts don't come off easy, don't use an Impact ! they will break then you'll really have fun !

Grab a punch and a pound hammer. Tap a couple of times on each head bolt >
Then Grab a 1/2 inch long handle ratchet or with a cheater bar. Do it the old fashioned way ! Less chance of damage.
Torque should be at 75 !

IHateHacks 05-30-2009 12:47 PM
My head bolts came off just fine.

If you weren't illiterate you would have read that it was the CRANKSHAFT HARMONIC BALANCER BOLT that didn't come off with an impact.

If you need a hammer to work on a supra you are a sledge hammer mechanic.

evosupra 05-30-2009 03:43 PM
Quote:
Originally Posted by IHateHacks (Post 70305)
My head bolts came off just fine.

If you weren't illiterate you would have read that it was the CRANKSHAFT HARMONIC BALANCER BOLT that didn't come off with an impact.

If you need a hammer to work on a supra you are a sledge hammer mechanic.
Just posted to the wrong thread is all ! No need to be rude, Ass !
Besides buddy, I have a doctorate in applied physics. talk about illiterate?
who's looking dumb now?

bglover84 08-02-2009 10:05 PM
Question
 
Quote:
Originally Posted by IHateHacks (Post 70305)
My head bolts came off just fine.

If you weren't illiterate you would have read that it was the CRANKSHAFT HARMONIC BALANCER BOLT that didn't come off with an impact.

If you need a hammer to work on a supra you are a sledge hammer mechanic.

How much did the machine shop take off your head? You ended up using a stock gasket correct?

I ask because I had to have 12 thous taken off the head and i'm trying to decide if I can use a stock head gasket or if I have to go to a metal because of the compression ratio being a bit higher now.

Tony 08-03-2009 05:26 AM
Just read the whole thread. Impressive.

I just got a 1988 Supra Turbo last week... 182k miles, 5-speed, targa top, leather seats, and a BHG (obviously)
It's really bad, oil everywhere! radiator's filled with it, you can see the tips of the spark plugs in a sea of oil surrounding them, very dirty engine bay that will require the help of a case of brake cleaner.
Got the head off tonight, and I feel like I should replace more and more parts while I'm doing this.
I already bought an upper gasket set, air filter, NGK plugs, wires, pcv valve, thermostat/gasket, hood shocks, ARP head bolts, all 3 belts... I need some new vacuum hoses, a lower radiator hose (cause I cut it off) and the flex exhaust pipe that leads out of the turbo to the downpipe (because I ripped it off) oil, oil filter, antifreeze...
My fuel injectors look pretty bad, and I have a question about those actually... they are 440cc injectors stock, how high could I go before I had to upgrade my fuel pump? Would 550cc be okay?

Anyways, this thread is a nice guide, and I'll get pics up soon of mine. Luckily I'm not working in the snow :P

bglover84 08-03-2009 11:38 AM
Re:
 
Quote:
Originally Posted by Tony (Post 71742)
Just read the whole thread. Impressive.

I just got a 1988 Supra Turbo last week... 182k miles, 5-speed, targa top, leather seats, and a BHG (obviously)
It's really bad, oil everywhere! radiator's filled with it, you can see the tips of the spark plugs in a sea of oil surrounding them, very dirty engine bay that will require the help of a case of brake cleaner.
Got the head off tonight, and I feel like I should replace more and more parts while I'm doing this.
I already bought an upper gasket set, air filter, NGK plugs, wires, pcv valve, thermostat/gasket, hood shocks, ARP head bolts, all 3 belts... I need some new vacuum hoses, a lower radiator hose (cause I cut it off) and the flex exhaust pipe that leads out of the turbo to the downpipe (because I ripped it off) oil, oil filter, antifreeze...
My fuel injectors look pretty bad, and I have a question about those actually... they are 440cc injectors stock, how high could I go before I had to upgrade my fuel pump? Would 550cc be okay?

Anyways, this thread is a nice guide, and I'll get pics up soon of mine. Luckily I'm not working in the snow :P

Congrats on the Supra purchase, to answer your question, most people upgrade to 550cc injectors which requires a Lexus AFM and upgraded fuel pump (usually people buy the Walbro 255 LPH fuel pump)

Spudboy 08-03-2009 03:44 PM
Quote:
Originally Posted by Tony (Post 71742)
Just read the whole thread. Impressive.

I just got a 1988 Supra Turbo last week... 182k miles, 5-speed, targa top, leather seats, and a BHG (obviously)
It's really bad, oil everywhere! radiator's filled with it, you can see the tips of the spark plugs in a sea of oil surrounding them, very dirty engine bay that will require the help of a case of brake cleaner.
Got the head off tonight, and I feel like I should replace more and more parts while I'm doing this.
I already bought an upper gasket set, air filter, NGK plugs, wires, pcv valve, thermostat/gasket, hood shocks, ARP head bolts, all 3 belts... I need some new vacuum hoses, a lower radiator hose (cause I cut it off) and the flex exhaust pipe that leads out of the turbo to the downpipe (because I ripped it off) oil, oil filter, antifreeze...
My fuel injectors look pretty bad, and I have a question about those actually... they are 440cc injectors stock, how high could I go before I had to upgrade my fuel pump? Would 550cc be okay?

Anyways, this thread is a nice guide, and I'll get pics up soon of mine. Luckily I'm not working in the snow :P

I have a new set of 550cc injectors I will not be using after all if you are interested in a good deal. I bought them over a year ago and my new job has really cut into my car time.

Let me know if you want a deal.

Tony 08-04-2009 01:20 AM
Quote:
Originally Posted by bglover84 (Post 71745)
Congrats on the Supra purchase, to answer your question, most people upgrade to 550cc injectors which requires a Lexus AFM and upgraded fuel pump (usually people buy the Walbro 255 LPH fuel pump)
Thanks!

Quote:
Originally Posted by Spudboy (Post 71747)
I have a new set of 550cc injectors I will not be using after all if you are interested in a good deal. I bought them over a year ago and my new job has really cut into my car time.

Let me know if you want a deal.
How much? I'm checkin' out a set of stock 440cc's... I really don't think I would upgrade to 550s if I needed to upgrade more things as well. I'm really trying to keep the costs down since and already I'm at double what I thought I was gonna spend. I definitely would like more performance (and probably will kick myself later for not changing out parts while I'm in there) but I just want it to run as of now.

Spudboy 08-04-2009 03:41 AM
Quote:
Originally Posted by Tony (Post 71753)
Thanks!



How much? I'm checkin' out a set of stock 440cc's... I really don't think I would upgrade to 550s if I needed to upgrade more things as well. I'm really trying to keep the costs down since and already I'm at double what I thought I was gonna spend. I definitely would like more performance (and probably will kick myself later for not changing out parts while I'm in there) but I just want it to run as of now.
I think I paid close to $700.00 for the set. I'll let them go for $500.00. I am not at home and don't even remember make and specs but I researched and they were the best. I understand our stock fuel pump will handle 550cc...at least according to the research I did. I did put a Lexus AFM on because that seemed to make sense but I never got around to the injectors. I suppose if you need to buy new injectors anyway you will probably spend close to $500.00 anyway. You may as well put some 550cc's on now if your top end is apart and spare the hastel later. Then when you get time and money add the Lexus AFM and I suggest a good AEM EMS so you can get a proper dyno tune. They have really come down in price since I spent $2,500.00 on one a few years ago. http://www.horsepowerfreaks.com/perf...nt_Stand_Alone

Tony 08-04-2009 10:35 PM
Quote:
Originally Posted by Spudboy (Post 71755)
I think I paid close to $700.00 for the set. I'll let them go for $500.00. I am not at home and don't even remember make and specs but I researched and they were the best. I understand our stock fuel pump will handle 550cc...at least according to the research I did. I did put a Lexus AFM on because that seemed to make sense but I never got around to the injectors. I suppose if you need to buy new injectors anyway you will probably spend close to $500.00 anyway. You may as well put some 550cc's on now if your top end is apart and spare the hastel later. Then when you get time and money add the Lexus AFM and I suggest a good AEM EMS so you can get a proper dyno tune. They have really come down in price since I spent $2,500.00 on one a few years ago. http://www.horsepowerfreaks.com/perf...nt_Stand_Alone

Oh wow yeah I'm not going to spend that much money.

Thanks?

Spudboy 08-04-2009 10:37 PM
Quote:
Originally Posted by Tony (Post 71769)
Oh wow yeah I'm not going to spend that much money.

Thanks?
If you need new stock injectors, how much do they cost?

Tony 08-04-2009 10:47 PM
Quote:
Originally Posted by Spudboy (Post 71770)
If you need new stock injectors, how much do they cost?
A lot.

I'm looking at some off a 115k mile car that is being parted out.

Tony 08-07-2009 11:25 PM
Ok so something not so sweet happened. The machine shop said the head is warped too much to flatten, and now I have to find a new one. There's one I'm looking at that's rebuilt for $400.

My question, will a head from a 7MGE fit my 7MGTE?

Someone told me they won't, because of some different coolant/oil lines and the intake/exhaust manifolds won't fit.

Tony 09-28-2009 07:31 PM
Well, I've finally done it!
Replaced head gasket, a lot of new parts replaced too. We fired it up and it runs kinda rough and is leaking antifreeze on the intake side between the upper and lower manifolds, and I have no idea where it's coming from :(
Any ideas?

Spudboy 09-28-2009 07:36 PM
Quote:
Originally Posted by Tony (Post 73423)
Well, I've finally done it!
Replaced head gasket, a lot of new parts replaced too. We fired it up and it runs kinda rough and is leaking antifreeze on the intake side between the upper and lower manifolds, and I have no idea where it's coming from :(
Any ideas?
What head did you end up using? You stated earlier "My question, will a head from a 7MGE fit my 7MGTE?

What kind of head bolts and torque values?

Did you machine the top of the block?

What kind of head gasket did you use?

Tony 09-28-2009 07:39 PM
Quote:
Originally Posted by Spudboy (Post 73424)
What head did you end up using? You stated earlier "My question, will a head from a 7MGE fit my 7MGTE?

What kind of head bolts and torque values?

Did you machine the top of the block?

What kind of head gasket did you use?
I found another 7MGTE head, had some valves reaseated and the head machined flat, not the block but it was good. ARP bolts to 70lbs, Advance Auto head gasket set.

Spudboy 09-29-2009 03:50 AM
Quote:
Originally Posted by Tony (Post 73423)
Well, I've finally done it!
Replaced head gasket, a lot of new parts replaced too. We fired it up and it runs kinda rough and is leaking antifreeze on the intake side between the upper and lower manifolds, and I have no idea where it's coming from :(
Any ideas?
So what do you mean 'upper' Vs 'lower' manifolds. I have a turbo with only one intake manifold.

I'm sure when you torqued your head bolts you followed the directions and proper order/procedure right?

Tony 09-30-2009 05:53 AM
Quote:
Originally Posted by Spudboy (Post 73449)
So what do you mean 'upper' Vs 'lower' manifolds. I have a turbo with only one intake manifold.

I'm sure when you torqued your head bolts you followed the directions and proper order/procedure right?

Yeah I followed TSRP order.

Well, there are 2 separate intake manifolds, the top one is separate from the lower and has a gasket between.

Bruno Molly 10-11-2009 08:17 PM
Crank bolts...
 
Quote:
Originally Posted by IHateHacks (Post 37000)
"No offense, IHateHacks, but apparently the 5 impacts that you were using to get the crank pulley bolt off were shit."

Yes I agree the craftsman was a POS, but the titanium series IR and the last one I used that required 120psi were definitely not junk. I talked to some other professional mechanics and they said that I should have used a 3/4" impact gun. And I was just being sarcastic about patenting that little trick. It says it right in the TSRM. I just didnt want to f-up one of the teeth on the flywheel, but when there is no other choice, I quickly overcame my fear.

"By the way, the pry bar in the starter is nothing new."

It wasn't in the starter, it was in the starter hole in the bellhousing. And if you were doing it for years why didnt you drop a dime and help me out before when I was asking- "Except for the starter method, how does everyone else loosen their crank bolt?"

No offense but it seems that most (not all) people here are more about 1-uping each other and claiming that they are superior, then about helping each other. To be frank I really dont care how long you say you've been a mechanic or about how you brag you've done something before. I respect someone much much more when they just drop a hint about what Im having trouble with. Those are the people that make me say damn that guy knows his stuff. Sorry, you just made me mad claiming all 5 of the guns were junk when you've never even seen them, you just make a blind assumption. The guns werent even mine so I dont know why Im even mad. Its the fact that you just come to a conclusion with no information other than they didn't get off the crank bolt. Remember a properly torqued 7M crank bolt is torqued to 195 ft-lbs. Most other manufacturers only require around 100 ft-lbs. Those guns take off crank bolts everyday at a BMW dealership because the crank bolts aren't torqued to 195 ft-lbs. All crank bolts are not created equal, but you should have known that.
Sometimes people use Locktite Thread locker which can complicate things.....You never know what you will find working on something someone else has worked on before you... Jus my 2Cents

Devicehead 10-21-2009 09:25 PM
Hi boys n' girls. New to the boards here. Thought I'd chime in on my rebuild project: 1987 Turbo.
The Story:
After a brief road race with a guy that works a couple doors down from me, the car started running bad with missfires and the like. After about a few failed attempts at quick-fixing it, I decided to finally thrash into it and get to the root of the problems.
Pulled the cylinder head and found the culprit!
http://i19.photobucket.com/albums/b1...pra/Supra1.jpghttp://i19.photobucket.com/albums/b1...pra/Supra2.jpg
http://i19.photobucket.com/albums/b1...pra/Supra5.jpg
Head Gasket - Blown between Cylinder 1 and 2. Fail. -.-
After further inspection of the lower end, (Block and pistons) I decided the whole engine was going to need rebirthing. So I sent the block and head out for re-machining.
While that was going on, I decided a fresh engine was worthy of a respectable home so I gutted the rest of the car and prepped it for competition re-assembling. >:)
http://i19.photobucket.com/albums/b1...ra/Supra14.jpghttp://i19.photobucket.com/albums/b1...ra/Supra10.jpg
http://i19.photobucket.com/albums/b1...ra/Supra11.jpghttp://i19.photobucket.com/albums/b1...ra/Supra13.jpg
http://i19.photobucket.com/albums/b1...ra/Supra12.jpg
And Then things started to brighten up a bit...
http://i19.photobucket.com/albums/b1...ra/Supra16.jpghttp://i19.photobucket.com/albums/b1...ra/Supra17.jpg
http://i19.photobucket.com/albums/b1...ra/Supra18.jpg
Then the engine arrived...
http://i19.photobucket.com/albums/b1...pra/Supra6.jpghttp://i19.photobucket.com/albums/b1...pra/Supra9.jpg
http://i19.photobucket.com/albums/b1...ra/Supra20.jpghttp://i19.photobucket.com/albums/b1...ra/Supra19.jpg
I'll have more pics of the head and other stuff later but, were getting close to going back in with the powerplant.

Tony 10-23-2009 10:37 PM
(From my thread http://www.toyota-supra.info/forums/...-problems.html)

Hey everyone,

I bought my 88 Supra Turbo with a BHG a while back, and have since done the following to it:

New HG and upper gasket set
ARP Bolts (70ft/lb)
Different turbo head purchased (old was warped .020")
Head machined flat, checked, and valves reseated
Set of completely refurbished fuel injectors (ultrasonically cleaned and flow tested)
Vacuum systed completely gone through and everything is properly connected.
Also tested every coil pack for spark (looked for spark in a removed plug attached to each coil pack)

Feels like a cylinder or two isn't firing.
Here's a video (don't mind the squeak, alternator belt is not tensioned all the way)

http://www.youtube.com/watch?v=1BudtjtPh70

The car starts but runs terribly, once the RPMs go past 2500, all power is lost until it drops below that.
If you keep the accelerator floored, it will go up past 2500 RPMS, then fall back to it over and over.

:dunno:

Can someone help me?
I want to get this thing on the road!

MA70-3.0GT 12-06-2009 04:47 PM
Quote:
Originally Posted by IHateHacks (Post 41857)
no sense jacking this one as it is 15+ pages long and I'd bet not half the people that look at this thread read EVERY post word for word.

Well I for one AM reading the whole lot, makes for interesting reading (jackers aside :nono:) as I'm halfway through doing my own HG job at the minute, that & the weather/lack of funds mean I'm waiting to get it back together now...

EDIT-: FECK ME, I've just read the rest of this thread from the point at which I posted. Dude this needs locking & all the hijack crap deleting 'cause otherwise it's gonna ruin an otherwise informative & interesting thread on ONE MAN's HG replacement... Mods, can we do this? How come so many complete morons can afford to buy such a lovely car & then ruin it?

EDIT#2-: By complete morons I do not mean the likes of Tony or Devicehead (how's that coming now D?) by the way, so don't go thinking I'm trying to flame people for asking pertinent questions on your own HG jobs. I'm thinking more of people who come on here & say things like "your impact guns are sh1t" or "Grab a punch and a pound hammer. Tap a couple of times on each head bolt " etc. without even taking the time to read into what they're replying to or verifying that what they're saying is not potentially going to cause someone to ruin their engine...

berzina123 12-16-2009 11:14 AM
Just tried using a 1/2" IR titanium series impact and it still won't come off. This has got to be a joke. Tomarrow morning I'm using a 120psi (instead of 90psi) 750 ft/lbs rated impact gun. All of the other guns were rated up to 90psi max. If that doesn't work I'll have to bite the bullet and buy the SST's. I wasted too much time and effort trying to save a few bucks.

Except for the starter method, how does everyone else loosen their crank bolt?

Bill UK 12-16-2009 11:42 AM
A couple of post worth looking at Link and Link

Rob1 02-21-2011 05:32 AM
Holy hell that is alot of posts!! just read every one and took me about an hour lol wonderful job on the rebuild man you have much more pacience(and money lol) than me i could nor have put that much attention into the detail i get to frustrated thats why i dont work in a shop only on my own cars. nice work:bigthumb:


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