just bought a super dupra, noob to the car - Page 2

bleSId · 03-24-2008, 09:51 PM

Quote:

Originally Posted by Supra Goddess

freightliner truck? what does that mean? very high psi or very low?

the other numbers seem good, fairly consistant.

the oil between the cam towers is either the valve covers or cam tower gaskets leaking, a pretty common issiue with these engines after so many years/miles.

the numbers are extremely high i the highest reading we got was a little over 210psi

Supra Goddess · 03-24-2008, 10:06 PM

210 isn't outrageous, but it is a little suspicious. more than likely there is oil sitting utop the cylinder, either caused by bad rings on that piston, leaky valve stem seals or worn valve guides.

was the spark plug in that cylinder kind of oily?

bleSId · 03-24-2008, 10:13 PM

ther was no spark plug in the number 3 cylinder

Supra Goddess · 03-25-2008, 03:06 PM

OY...

this whole situation is a big headache for me just trying to understand wtf is going on here.

so no spark plug, doesn't mean it exploded, just means that someone is an assclown, removed it and didn't put it back... OR... didn't tighten it and the compression blew it out of the cylinder when someone tried to start the engine.

bleSId · 03-25-2008, 10:01 PM

a head ache for you? you dont even own the damn thing!! imagine how I feel!

anyway, the compression didnt blow it out there is no scaring at all to threading, so far everybody is telling me that the sparkplug detonated when the timing belt blew, but those two things arent neccesarily connected to eachother, i think it was just bad timing*no pun intended*

Supra Goddess · 03-26-2008, 01:29 AM

I mean it's a headache just trying to figure it out through typed words on the internet, it's hard to grasp what is going on here.

As far as the spark plug goes, I highly doubt that it detonated to the point it just 'disappeared'. There's no sign of the spark plug right? I find that very improbable. Shine a flashlight into the spark plug hole and see if you can see anything that doesn't look right, like metal chunks. The top of the piston should look black from carbon, which is normal.

bleSId · 03-29-2008, 10:58 PM

all six cylinders are black.

nad

bleSId · 03-29-2008, 11:00 PM

all six cylinders are black.

and yes there is no sign of the spark plug, but as you said before, that is probably the result of the mechanics not knowing what they're doing

stormrally · 04-02-2008, 06:36 AM

possible reason for high comp in 3 is high carbon build up. I read about a civic that had a static compression of 13:1 (from normal 9.5:1ish) just from carbon build up and ran race fuel until he rebuilt the engine. Speaking of, if you've rebuilt 2 engines already you should have a strong grasp on whats going on because really...an engine is an engine...unless it's a wankel. Ask the car these questions 1) are you getting air 2) are you getting fuel (how long was it sitting aka bad gas) 3) are you getting spark. of course if cam or spark timing are off it may not run as stated previously. check all that and if it still doesn't run suck it up and pull the head.

03-24-2008, 10:06 PM	#12
Supra Goddess Intake Join Date: Feb 2005 Location: Lakewood, WA Posts: 38	210 isn't outrageous, but it is a little suspicious. more than likely there is oil sitting utop the cylinder, either caused by bad rings on that piston, leaky valve stem seals or worn valve guides. was the spark plug in that cylinder kind of oily? __________________

03-25-2008, 03:06 PM	#14
Supra Goddess Intake Join Date: Feb 2005 Location: Lakewood, WA Posts: 38	OY... this whole situation is a big headache for me just trying to understand wtf is going on here. so no spark plug, doesn't mean it exploded, just means that someone is an assclown, removed it and didn't put it back... OR... didn't tighten it and the compression blew it out of the cylinder when someone tried to start the engine. __________________

03-26-2008, 01:29 AM	#16
Supra Goddess Intake Join Date: Feb 2005 Location: Lakewood, WA Posts: 38	I mean it's a headache just trying to figure it out through typed words on the internet, it's hard to grasp what is going on here. As far as the spark plug goes, I highly doubt that it detonated to the point it just 'disappeared'. There's no sign of the spark plug right? I find that very improbable. Shine a flashlight into the spark plug hole and see if you can see anything that doesn't look right, like metal chunks. The top of the piston should look black from carbon, which is normal. __________________

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03-24-2008, 10:13 PM	#13
bleSId Stock Join Date: Jun 2007 Location: Fayetteville Arkansas Posts: 11	ther was no spark plug in the number 3 cylinder

03-25-2008, 10:01 PM	#15
bleSId Stock Join Date: Jun 2007 Location: Fayetteville Arkansas Posts: 11	a head ache for you? you dont even own the damn thing!! imagine how I feel! anyway, the compression didnt blow it out there is no scaring at all to threading, so far everybody is telling me that the sparkplug detonated when the timing belt blew, but those two things arent neccesarily connected to eachother, i think it was just bad timingno pun intended

03-29-2008, 10:58 PM	#17
bleSId Stock Join Date: Jun 2007 Location: Fayetteville Arkansas Posts: 11	all six cylinders are black. nad

03-29-2008, 11:00 PM	#18
bleSId Stock Join Date: Jun 2007 Location: Fayetteville Arkansas Posts: 11	all six cylinders are black. and yes there is no sign of the spark plug, but as you said before, that is probably the result of the mechanics not knowing what they're doing

04-02-2008, 06:36 AM	#19
stormrally Stock Join Date: Apr 2008 Location: oregon Posts: 1	possible reason for high comp in 3 is high carbon build up. I read about a civic that had a static compression of 13:1 (from normal 9.5:1ish) just from carbon build up and ran race fuel until he rebuilt the engine. Speaking of, if you've rebuilt 2 engines already you should have a strong grasp on whats going on because really...an engine is an engine...unless it's a wankel. Ask the car these questions 1) are you getting air 2) are you getting fuel (how long was it sitting aka bad gas) 3) are you getting spark. of course if cam or spark timing are off it may not run as stated previously. check all that and if it still doesn't run suck it up and pull the head.