Starting isssues and spark knock Q's

spudz29212MKIII · 05-06-2008, 01:15 AM

Alright, went over to my bro-in-laws house and did the leak down test. Since the rest of the cylinders were fine I only tested cylinders 4 & 5.

Cylinder 4 seemed to be okay. We could not pin-point escaping air with oild cap off but since the dry test came up 130PSI and wet test 160PSI we did not worry that much.

On to cylinder 5. This one was horrible 60PSI on dry test I knew this one would be the worst. Hooked up air to the cylinder popped the oil cap, and swishoosh tons of air comming out of oil cap. Rings are shit, but I dont really care still drivable. At least until I get some finance up for either re-build or new reman block/engine.

BHG test were inconclusive. Ran the engine at idle with radiator cap off and topped off the coolant. Had some bubbling on and off but not enough to just flat out say BHG.

Also had some excess moisture in exhaust, but still to little to say BHG.

We are thinking about getting a reman'd short block and dropping it in over a weekend or two. I would say its much less of a hassle then ripping apart the motor just to fix some rings. Stupid toyota and thier lies, double rings just fuck up everything.

mkiiisupra · 05-06-2008, 01:50 AM

that sucks man, glad my compression test didnt turn up anything evil like that ;(

Not much of a mechanic but maybe we can meet up, im not too far outside of columbia. Would like to see an engine pulled apart for when i have to do mine lol

spudz29212MKIII · 05-07-2008, 07:28 PM

Im doing some carbon cleaner, got some sea foam in the gas.

Question, its my first turbo and I want to do some carb cleaner. I take it you cant take off piping or it will just stall. And im def not going to spray it in or around the MAF. I read it has to be done in a vacuum line.

If this is so which is the best one to spray in?

supramacist · 05-08-2008, 07:08 PM

Your car has a carberator?

My pipe does but not my car.

Seafoam is nasty stuff and doesn't do as well as it boasts.
Step in the right direction though.

I had a guy ask me once why his shit was'nt working.
He just got done tuning it up and topping off the fluids.

Long story short the turbo is not a fluid reservior.

I'm an n/a. I don't do turbo questions to avoid giving out garbage 411.

spudz29212MKIII · 05-08-2008, 07:40 PM

Yea I hear ya. Sea foam has a nice rep. The only other good rep one I heard is GM's fuel additive, so idk yet.

I have alot of oil in my IC piping and also the EGR recirculating into the intake manifold. So I was hoping throwing some carb cleaner might clear up some oil gunk and carbon gunk that is probably building up in the manifold or throttle body. Also get some junk off the Intake valves.

With some of the rings shot, and the EGR recirculating I was just guessing there was some nasty crap in there. It needs to be sprayed into one of the vacuum lines on the throttle body, just seeing which is the best one.

supramacist · 05-08-2008, 08:26 PM

Dexcron Mercron

ATF.

Try it as a fuel additive. It's far better than sea foam and cost much less.

EDIT: If you aren't using premium. You're only lubing your fi system.

Wich is fine after you burn it out with a tank of premium.

You'll smoke a bit. Some say that the dexcron reduces the smoke more so than
just good ol regular atf.

I personally never thought it made anything smoke bad enough to worry about it.
I have done this in many autos.

paulmicin · 05-21-2008, 12:46 AM

Quote:

Originally Posted by spudz29212MKIII

Alright, went over to my bro-in-laws house and did the leak down test. Since the rest of the cylinders were fine I only tested cylinders 4 & 5.

Cylinder 4 seemed to be okay. We could not pin-point escaping air with oild cap off but since the dry test came up 130PSI and wet test 160PSI we did not worry that much.

On to cylinder 5. This one was horrible 60PSI on dry test I knew this one would be the worst. Hooked up air to the cylinder popped the oil cap, and swishoosh tons of air comming out of oil cap. Rings are shit, but I dont really care still drivable. At least until I get some finance up for either re-build or new reman block/engine.

BHG test were inconclusive. Ran the engine at idle with radiator cap off and topped off the coolant. Had some bubbling on and off but not enough to just flat out say BHG.

Also had some excess moisture in exhaust, but still to little to say BHG.

We are thinking about getting a reman'd short block and dropping it in over a weekend or two. I would say its much less of a hassle then ripping apart the motor just to fix some rings. Stupid toyota and thier lies, double rings just fuck up everything.

Hey, just wanted to ask what kind of fitting you used to hook up compressed air to the cylinder.

spudz29212MKIII · 05-21-2008, 02:46 AM

No prob, But pretty simple. I just used the compression testr' hose. What you need to do is popp off the gauge and hook up the air. Now there is a little nozzle in the end to keep air in (like a tire or bicycle stem nozzle). So instead of getting another hose I just got some small tweezers and you basically can just screw it out. I dont actually remember the size of the fittings (i just have a ton laying around) so just play around but I know advance auto parts has the right fitting.

Dont loose the little nozzle, but if you do its the same nozzle as in a tire's stem. (you just might have a pain in the ass fitting it or finding the right size)

05-06-2008, 01:15 AM	#1
spudz29212MKIII 3" Exhaust Join Date: Mar 2008 Location: Columbia, SC Posts: 69	Alright, went over to my bro-in-laws house and did the leak down test. Since the rest of the cylinders were fine I only tested cylinders 4 & 5. Cylinder 4 seemed to be okay. We could not pin-point escaping air with oild cap off but since the dry test came up 130PSI and wet test 160PSI we did not worry that much. On to cylinder 5. This one was horrible 60PSI on dry test I knew this one would be the worst. Hooked up air to the cylinder popped the oil cap, and swishoosh tons of air comming out of oil cap. Rings are shit, but I dont really care still drivable. At least until I get some finance up for either re-build or new reman block/engine. BHG test were inconclusive. Ran the engine at idle with radiator cap off and topped off the coolant. Had some bubbling on and off but not enough to just flat out say BHG. Also had some excess moisture in exhaust, but still to little to say BHG. We are thinking about getting a reman'd short block and dropping it in over a weekend or two. I would say its much less of a hassle then ripping apart the motor just to fix some rings. Stupid toyota and thier lies, double rings just fuck up everything. __________________ Zach

05-06-2008, 01:50 AM	#2
mkiiisupra Lexus & 550's Join Date: Sep 2007 Location: Las Vegas, NV Posts: 570 Blog Entries: 1	that sucks man, glad my compression test didnt turn up anything evil like that ;( Not much of a mechanic but maybe we can meet up, im not too far outside of columbia. Would like to see an engine pulled apart for when i have to do mine lol __________________ 1990 Toyota Supra Turbo A/T ------------------------------------------------ Questions about oil? take a look http://www.supramania.com/aehaas/

05-07-2008, 07:28 PM	#3
spudz29212MKIII 3" Exhaust Join Date: Mar 2008 Location: Columbia, SC Posts: 69	Im doing some carbon cleaner, got some sea foam in the gas. Question, its my first turbo and I want to do some carb cleaner. I take it you cant take off piping or it will just stall. And im def not going to spray it in or around the MAF. I read it has to be done in a vacuum line. If this is so which is the best one to spray in? __________________ Zach

05-08-2008, 07:40 PM	#5
spudz29212MKIII 3" Exhaust Join Date: Mar 2008 Location: Columbia, SC Posts: 69	Yea I hear ya. Sea foam has a nice rep. The only other good rep one I heard is GM's fuel additive, so idk yet. I have alot of oil in my IC piping and also the EGR recirculating into the intake manifold. So I was hoping throwing some carb cleaner might clear up some oil gunk and carbon gunk that is probably building up in the manifold or throttle body. Also get some junk off the Intake valves. With some of the rings shot, and the EGR recirculating I was just guessing there was some nasty crap in there. It needs to be sprayed into one of the vacuum lines on the throttle body, just seeing which is the best one. __________________ Zach

05-08-2008, 08:26 PM	#6
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Dexcron Mercron ATF. Try it as a fuel additive. It's far better than sea foam and cost much less. EDIT: If you aren't using premium. You're only lubing your fi system. Wich is fine after you burn it out with a tank of premium. You'll smoke a bit. Some say that the dexcron reduces the smoke more so than just good ol regular atf. I personally never thought it made anything smoke bad enough to worry about it. I have done this in many autos. Last edited by supramacist; 05-08-2008 at 08:32 PM.

05-08-2008, 07:08 PM	#4
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Your car has a carberator? My pipe does but not my car. Seafoam is nasty stuff and doesn't do as well as it boasts. Step in the right direction though. I had a guy ask me once why his shit was'nt working. He just got done tuning it up and topping off the fluids. Long story short the turbo is not a fluid reservior. I'm an n/a. I don't do turbo questions to avoid giving out garbage 411.

05-21-2008, 02:46 AM	#8
spudz29212MKIII 3" Exhaust Join Date: Mar 2008 Location: Columbia, SC Posts: 69	No prob, But pretty simple. I just used the compression testr' hose. What you need to do is popp off the gauge and hook up the air. Now there is a little nozzle in the end to keep air in (like a tire or bicycle stem nozzle). So instead of getting another hose I just got some small tweezers and you basically can just screw it out. I dont actually remember the size of the fittings (i just have a ton laying around) so just play around but I know advance auto parts has the right fitting. Dont loose the little nozzle, but if you do its the same nozzle as in a tire's stem. (you just might have a pain in the ass fitting it or finding the right size) __________________ Zach