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Topic: Major miss in 2.3 turbo (Read 1668 times) previous topic - next topic

Major miss in 2.3 turbo

I have a 86 turbocoupe and everything was running good, now all of a sudden theres a major miss in it.  I changed plugs/wires which didnt help at all.  At first it seamed to only do it under boost and once it was warmed up but now its pretty much constant and wont barely move.  Now this all started and happened within about a 48-72hr period.

any info is appreciated.

Major miss in 2.3 turbo

Reply #1
Blew a head gasket.

Do a compression check.

Major miss in 2.3 turbo

Reply #2
thats what i was kind of thinkin too.... 2.3's :( this will be my second one to blow a head gasket if so.....

Major miss in 2.3 turbo

Reply #3
hmmm....now is it possible to just lift the head and swap the gasket without completely yanking everything?

Major miss in 2.3 turbo

Reply #4
I'd check the fuel pressure too.

Major miss in 2.3 turbo

Reply #5
thanks....i was told to do that here at work too...

Major miss in 2.3 turbo

Reply #6
well guys wish me luck im takin the compression tester and a fuel pressure tester home tonight with me so hopefully i'll find something out.

Major miss in 2.3 turbo

Reply #7
Quote from: onenasty86tbird;180504
hmmm....now is it possible to just lift the head and swap the gasket without completely yanking everything?


sure, if you want to be doing it again in another day/week/month.

Major miss in 2.3 turbo

Reply #8
Actually you can leave the exhaust mani in the car and just remove the upper intake. you can leave the lower on the head when you pull it off. Also maybe you have an exhaust restriction. maybe the cat is plugging up or something got bent causing less flow. If the compression checks out drop the down pipe and go for a run if the power is back and the miss is gone its in the exhaust. I had a cat plug up on me before idled fine but had no power and wouldn't build boost.
84 Turbo coupe 2.3T Modded with 88 upper and lower intake, 88 injectors, E6 manifold, T3-4 AR.60 turbo, 31X12X3 FMIC, Homemade MBC , Greddy knock off BPV.
4 eyes see better than 2! 
Da Bird!

FreeBird

Major miss in 2.3 turbo

Reply #9
well looks like its head gasket as im puking a/f all of a sudden now out front of head area :( doin head gasket this weekend i guess....always freakin sumthin....just got the car 2 weeks ago :(

Major miss in 2.3 turbo

Reply #10
Quote from: onenasty86tbird;180796
well looks like its head gasket as im puking a/f all of a sudden now out front of head area :( doin head gasket this weekend i guess....always freakin sumthin....just got the car 2 weeks ago :(



Check your deck surfaces for flatness.
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1974 maverick lsx powered turbo car SOLD
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1957 chevy LSX Turbo project (race car)
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Major miss in 2.3 turbo

Reply #12
any ideas now as to why i would have smoke coming from exhaust manifold and plug area?  I had a issue with timing but got that taken care of and now it runs better but not good enough to drive....i had soem issues with fire from the exhaust manifold but it was just like a flame.....maybe ruiend the new head gasket?

 

Major miss in 2.3 turbo

Reply #13
Oil residue burning off the manifold?

What was your "timing issue"

Did you check your head and block for flatness before you installed the new HG?
Long live the 4-eyes!  - '83 Tbird Turbo - '85 Marquis LTS - '86 LTD Wagon-  '81 Granada GL 2dr

Major miss in 2.3 turbo

Reply #14
heh got me...i didnt check it for flatness and from what i was told today thats my issue...so anyone wanna buy a 2.3 longblock with no intake/exhaust manifolds and is in need of hg and shaving the head?  its coming out of the car soon, if i get it sold quik then a 2.3 turbo will go back in if not its gonna be a v8 probably :(