Engine Restore

kaseysmom · 01-31-2010, 07:50 PM

How bad is bad? I figured I would just give them to you rather than wait for you to tell me to post them. 70 - 60 - 50 - 25 - 25 - 50. I was not with my car when it was tested - my husband did it following the TSRM instructions. He said he did a wet test on 2 of them (which two I am yet to find out) and the numbers went up about 30 psi. If he ever decides to get up I will go back to the shop with him and run it again to be sure.

Looks like a bottom end problem? Piston rings, cracked pistons, scored cylinder walls? LOL! Don't think they are selling anything in a bottle to help me out of this! So is it rebuild time - or what?

mirage83 · 01-31-2010, 08:14 PM

That would be pretty bad, as IIRC the GTE should run about 140. Even a 70 is pretty poor, and any cylinder reading out at 25 or so probably doesn't have much left in the way of rings and may even have suffered some piston damage to one degree or another.

Personal opinion? Plan on a full rebuild, top to bottom, along with all the various cracked or cracking hoses (vacuum and water) and assorted frayed/cracked wires you'll undoubtedly come across when the engine is pulled.

With compression that poor and uneven I don't really see much choice other rebuilding yours or swapping in another engine. At least if you rebuild it or have it rebuilt you'll know what quality parts are going into it, and with a swap you may or may not have that sort of assurance and confidence in the engine.

kaseysmom · 01-31-2010, 08:40 PM

That is what I have been thinking all along. I have another 90 hard top with no engine or transmission but a really nice interior and exterior. I was hoping to be able to drive the one I'm currently driving long enough to do a swap - rebuild combo and get them both on the road - but it doesn't look like that is happening. And I like the idea of the do it yourself way since I plan to keep the car forever! Or until someone hits me! LOL!

supradaddy0803 · 02-03-2010, 06:31 AM

Ummmmm personnel opinion if you got the know how. (Coughs) 1JZ lol. after you get past the ECU problem or buy a motor set that has had the Caps changed its a way more reliable engine. Like I said personnel opinion. But if you dont have the know how it is a really fun swap TRUST ME. but seeing as you have a 90 you will have a lot easier time than I have had.

cre · 02-03-2010, 06:55 AM

Wow! That's ridiculously low... you sure the gauge is reading in psi?

That low across the board would take some very heavy wear. If you verify the readings and get it apart, take a lot of measurements to make sure it's rebuildable before you spend a penny on machine work.

toyotarunner1992 · 02-09-2010, 05:25 AM

i use this in both my 92 4runner 3vze and my 87 NA supra mixed with synthetic i saw major improvments in my truck but the supra was less noticable... although my valves are leaking oil into the pistons... not for long@ hello new head!

cre · 02-09-2010, 06:19 PM

Just because it's good at hiding problems doesn't mean it's good. PTFE, lead, copper and whatever sludge is loosened up by all the thinners and solvents (which break down into HIGHLY corrosive substances) are NOT a "solution" or "fix" for anything. As I've said before, do some research.

Runner - If you need a new head it's not just for leaking valves.

kaseysmom · 02-11-2010, 02:02 AM

I totally agree with you Cre! When my husband suggested putting something in to "buy" me another 50,000 (he must have been drinking) miles - I have to say it gave me a sick feeling. You know - the feeling you get when you are doing something horribly wrong! Hiding the problem doesn't help a thing! Then I came across a post about knocking and looked at this link from another post.

:http://s398.photobucket.com/albums/p...5-11-14-28.flv

I am happy to report that my engine sounds nothing like that one! I just have almost zero compression and a subtle little engine noise. It will not come out of the shop and go back on the road until I do a total rebuild. I can't imagine anyone driving a car sounding like it is throwing bolts.

Working on getting my brother to take a couple weeks off to come give me a hand with it. I let you know what I find when I get inside - but it will be sometime next month. In the mean time it is fine where it is......parked!!!!

01-31-2010, 07:50 PM	#1
kaseysmom Stock Join Date: Sep 2009 Location: Athens Alabama Posts: 11	How bad is bad? I figured I would just give them to you rather than wait for you to tell me to post them. 70 - 60 - 50 - 25 - 25 - 50. I was not with my car when it was tested - my husband did it following the TSRM instructions. He said he did a wet test on 2 of them (which two I am yet to find out) and the numbers went up about 30 psi. If he ever decides to get up I will go back to the shop with him and run it again to be sure. Looks like a bottom end problem? Piston rings, cracked pistons, scored cylinder walls? LOL! Don't think they are selling anything in a bottle to help me out of this! So is it rebuild time - or what? __________________ On life's journey faith is nourishment, virtuous deeds are a shelter, wisdom is the light by day and right mindfulness is the protection by night. If a man lives a pure life, nothing can destroy him.

01-31-2010, 08:40 PM	#3
kaseysmom Stock Join Date: Sep 2009 Location: Athens Alabama Posts: 11	Thanks! That is what I have been thinking all along. I have another 90 hard top with no engine or transmission but a really nice interior and exterior. I was hoping to be able to drive the one I'm currently driving long enough to do a swap - rebuild combo and get them both on the road - but it doesn't look like that is happening. And I like the idea of the do it yourself way since I plan to keep the car forever! Or until someone hits me! LOL! __________________ On life's journey faith is nourishment, virtuous deeds are a shelter, wisdom is the light by day and right mindfulness is the protection by night. If a man lives a pure life, nothing can destroy him.

02-03-2010, 06:31 AM	#4
supradaddy0803 12psi boost Join Date: May 2006 Location: Athens, TX Posts: 308	Ummmmm personnel opinion if you got the know how. (Coughs) 1JZ lol. after you get past the ECU problem or buy a motor set that has had the Caps changed its a way more reliable engine. Like I said personnel opinion. But if you dont have the know how it is a really fun swap TRUST ME. but seeing as you have a 90 you will have a lot easier time than I have had. __________________ 1987 supra NA 5 speed 1JZGTE swap Tokico Illumina 2 and Eibach springs Tokico pillow blocks Suspension Techniques front and rear sway bar HKS super dragger cat-back exhaust plus test pipe Greddy Profec B spec 2 boost controller HKS type 1 turbo timer Supra sport solid steel drive shaft Walboro 255 fuel pump JZA70 Front end mod 18" Volk Racing AV3 18x8.5 front 18x9.5 rear

02-03-2010, 06:55 AM	#5
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Wow! That's ridiculously low... you sure the gauge is reading in psi? That low across the board would take some very heavy wear. If you verify the readings and get it apart, take a lot of measurements to make sure it's rebuildable before you spend a penny on machine work. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

02-09-2010, 06:19 PM	#7
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Just because it's good at hiding problems doesn't mean it's good. PTFE, lead, copper and whatever sludge is loosened up by all the thinners and solvents (which break down into HIGHLY corrosive substances) are NOT a "solution" or "fix" for anything. As I've said before, do some research. Runner - If you need a new head it's not just for leaking valves. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

01-31-2010, 08:14 PM	#2
mirage83 12psi boost Join Date: Feb 2007 Location: Georgia Posts: 359	That would be pretty bad, as IIRC the GTE should run about 140. Even a 70 is pretty poor, and any cylinder reading out at 25 or so probably doesn't have much left in the way of rings and may even have suffered some piston damage to one degree or another. Personal opinion? Plan on a full rebuild, top to bottom, along with all the various cracked or cracking hoses (vacuum and water) and assorted frayed/cracked wires you'll undoubtedly come across when the engine is pulled. With compression that poor and uneven I don't really see much choice other rebuilding yours or swapping in another engine. At least if you rebuild it or have it rebuilt you'll know what quality parts are going into it, and with a swap you may or may not have that sort of assurance and confidence in the engine.

02-09-2010, 05:25 AM	#6
toyotarunner1992 Stock Join Date: Nov 2009 Location: Tucson/Phoenix Posts: 12	i use this in both my 92 4runner 3vze and my 87 NA supra mixed with synthetic i saw major improvments in my truck but the supra was less noticable... although my valves are leaking oil into the pistons... not for long@ hello new head!

02-11-2010, 02:02 AM	#8
kaseysmom Stock Join Date: Sep 2009 Location: Athens Alabama Posts: 11	I totally agree with you Cre! When my husband suggested putting something in to "buy" me another 50,000 (he must have been drinking) miles - I have to say it gave me a sick feeling. You know - the feeling you get when you are doing something horribly wrong! Hiding the problem doesn't help a thing! Then I came across a post about knocking and looked at this link from another post. :http://s398.photobucket.com/albums/p...5-11-14-28.flv I am happy to report that my engine sounds nothing like that one! I just have almost zero compression and a subtle little engine noise. It will not come out of the shop and go back on the road until I do a total rebuild. I can't imagine anyone driving a car sounding like it is throwing bolts. Working on getting my brother to take a couple weeks off to come give me a hand with it. I let you know what I find when I get inside - but it will be sometime next month. In the mean time it is fine where it is......parked!!!! __________________ On life's journey faith is nourishment, virtuous deeds are a shelter, wisdom is the light by day and right mindfulness is the protection by night. If a man lives a pure life, nothing can destroy him.

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