SR20 - Missfire, gets hot, after headgasket install - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Corbic · 03-09-2009, 09:12 PM

Ok, so my friend installed new bearings and a headgasket into his SR20DET redtop. The guy knows what he is doing with such things, but when he went to fire it back up, it now barely runs, miss fires like crazy and the exhaust is getting red-hot, real quick.

I'm guessing timing and running lean, but everything looks alright. Could he have accidentally botched something in the install (of the new parts, motors been in for a year)? What else should I check that we might be over looking? Thanks.

JohnnyDrfiter22 · 03-09-2009, 10:52 PM

Sounds like your exhaust cam is off. Check those and check timing. check plugs, make sure every injector is firing, tap on the top of the injector.

n240sxfnatic · 03-10-2009, 09:56 AM

Timing....

drifterken · 03-13-2009, 01:04 PM

check timing and make sure ur plugs are gaped right.

MannylovesLian · 03-13-2009, 03:16 PM

What They Said ^

aNskY · 03-14-2009, 09:22 AM

Quote:

Originally Posted by JohnnyDrfiter22

Sounds like your exhaust cam is off. Check those and check timing. check plugs, make sure every injector is firing, tap on the top of the injector.

Quote:

Originally Posted by n240sxfnatic

Timing....

Quote:

Originally Posted by drifterken

check timing and make sure ur plugs are gaped right.

Quote:

Originally Posted by MannylovesLian

What They Said ^

Yeap, timing is retarded.

03-09-2009, 09:12 PM	#1
Corbic Post Whore! Join Date: Jul 2005 Location: US Age: 37 Posts: 8,027 Trader Rating: (8) Feedback Score: 8 reviews	SR20 - Missfire, gets hot, after headgasket install Ok, so my friend installed new bearings and a headgasket into his SR20DET redtop. The guy knows what he is doing with such things, but when he went to fire it back up, it now barely runs, miss fires like crazy and the exhaust is getting red-hot, real quick. I'm guessing timing and running lean, but everything looks alright. Could he have accidentally botched something in the install (of the new parts, motors been in for a year)? What else should I check that we might be over looking? Thanks.

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03-09-2009, 10:52 PM	#2
JohnnyDrfiter22 Zilvia Addict Join Date: Apr 2008 Location: New Jersey Age: 38 Posts: 670 Trader Rating: (0) Feedback Score: 0 reviews	Sounds like your exhaust cam is off. Check those and check timing. check plugs, make sure every injector is firing, tap on the top of the injector.

03-10-2009, 09:56 AM	#3
n240sxfnatic Zilvia Junkie Join Date: Apr 2007 Location: West Des Moines, Ia Age: 33 Posts: 493 Trader Rating: (6) Feedback Score: 6 reviews	Timing....

03-13-2009, 01:04 PM	#4
drifterken Leaky Injector Join Date: Feb 2007 Location: so cal. Posts: 126 Trader Rating: (2) Feedback Score: 2 reviews	check timing and make sure ur plugs are gaped right.

03-13-2009, 03:16 PM	#5
MannylovesLian Banned from the Marketplace Join Date: Mar 2009 Location: LA County Age: 36 Posts: 304 Trader Rating: (5) Feedback Score: 5 reviews	What They Said ^