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View Full Version : Wont Start after intake/head gaskets



shortygy
07-24-08, 06:06 PM
Hey guys,

Got most of it back together within the exception of a few vac hoses whcih i don't think matters. The truck wont start but it cranks and sounds like its almost going to fire.

I have spark
I have fuel
I was thinking its probably my distributor in wrong here is a pic of how I have it in. Rotor points to my #1 when at TDC compression

any help would be appreciated

Thanks,
Greg

http://www.ultratechcleaning.com/graphics/pics/distributor.JPG

Jay-Sliver
07-24-08, 07:09 PM
looks like the EGR Valve doesnt have its vaccuum line on it, I would plug that in. You'd be surprised. Vaccuum leaks can cause huge running/driveability problems. Try giving your distributor a bit of a turn, could possibly be too far advanced/retarded.

Jay

ILOUTFITTER
07-24-08, 07:40 PM
id check for vacuum leaks, are you sure the intake gasket is seated right and not pinched or shifted anywhere?

Tink
07-24-08, 08:05 PM
Could it be out of phase? Meaning at #1 on the exhaust instead of intake? Or maybe just too retarded? Have you tried advancing it so far that it kicks back on the starter when you start it?

shortygy
07-28-08, 11:48 PM
Hey guys thanks for the suggestions. I was away over the weekend so I will give it a shot again tomorrow.

Mikz86TA
07-29-08, 12:28 AM
X2 on the TDC right compression stroke.

Double check your fire order.

X2 on vaccum connections.

shortygy
07-29-08, 03:56 PM
Soo to fix the "phase" would I pull distributor and rotate the crank 1 full rotation and reinstall distributor?

Thanks.

MikDee
07-29-08, 05:28 PM
Your plug wires look screwed up? It's supposed to be: Distributor Wiring, 1,6,5,4,3,2 Clockwise

Engine (plug location) 1,3,5, on your right, front to back, 2,4,6 on your left, front to back, as you're facing the motor.

Jongo88
07-29-08, 05:29 PM
Hey guys,

Got most of it back together within the exception of a few vac hoses whcih i don't think matters. The truck wont start but it cranks and sounds like its almost going to fire.

I have spark
I have fuel
I was thinking its probably my distributor in wrong here is a pic of how I have it in. Rotor points to my #1 when at TDC compression

any help would be appreciated

Thanks,
Greg

http://www.ultratechcleaning.com/graphics/pics/distributor.JPG
It looks to me from the picture that #1 is going to the wrong side and number 6 is going to the wrong side too.
# 1 is drivers front. If it is a 4.3.

Jongo88
07-29-08, 05:51 PM
Now that I look better it must be a 2.8??

manofthehour114
07-29-08, 06:36 PM
I agree with everyone on the vacuum lines. Plug those back up. My truck will die as soon as one is disconnected at idle.

shortygy
07-29-08, 07:01 PM
Yes Its a 2.8 . In my manual I believe it is as per my badly drawn picture below.

http://www.ultratechcleaning@ultratechcleaning.com/graphics/pics/Truck%20Engine.bmp

Tink
07-29-08, 07:33 PM
Yup, I assuming 82-85 2.8L... so 1-2-3-4-5-6 and your number 1 is exactly where it is on our 83.

To check to see if it is out of phase (if the exhaust is opening and the rotor is pointing #1 then it is 180 degrees out of phase). You can first check to see if both rocker arms on #1 are 'loose' - you can wiggle them.... then rotate it slightly - just until the exhaust starts to open to see if it is out of phase... if the rotor is point 180 off, not at #1, then it is correct. If it is pointing to #1, it is 180 degrees out of phase. If so, continue to turn it all the way back to TDC (360 - 1 revolution) and that should be TDC intake... reindex the dizzy back in pointing at #1...

I don't think the vacuum to the EGR would cause it not to start...

MikDee
07-29-08, 08:52 PM
Sorry, thought it was a 4.3, then what I said don't apply :o But, I do agree with Tink,^^^ I was gonna say to do this next.

shortygy
07-30-08, 11:28 AM
Well I reinstalled the valve covers and sealed them up because it was hard to get all the other hoses brackets etc on later. How about I do all the vac lines try it ... and if its still no good then I will just flip it 180 and see what happens?




Yup, I assuming 82-85 2.8L... so 1-2-3-4-5-6 and your number 1 is exactly where it is on our 83.

To check to see if it is out of phase (if the exhaust is opening and the rotor is pointing #1 then it is 180 degrees out of phase). You can first check to see if both rocker arms on #1 are 'loose' - you can wiggle them.... then rotate it slightly - just until the exhaust starts to open to see if it is out of phase... if the rotor is point 180 off, not at #1, then it is correct. If it is pointing to #1, it is 180 degrees out of phase. If so, continue to turn it all the way back to TDC (360 - 1 revolution) and that should be TDC intake... reindex the dizzy back in pointing at #1...

I don't think the vacuum to the EGR would cause it not to start...

shortygy
07-30-08, 11:29 AM
No problem. I should have been more specific .....

It is a 1985 GMC s15 jimmy 2.8L



Sorry, thought it was a 4.3, then what I said don't apply :o But, I do agree with Tink,^^^ I was gonna say to do this next.

shortygy
07-30-08, 11:44 PM
Ok Boys.....

-I hooked up all vac lines and tried it out ... NO DICE
-I turned the ditributor 180 degrees .... NO DICE and it seems to back fire out the carb when I hold the gas petal down.

VIDEO LINKS

http://www.getspooln.com/images/Jimmy/engine 1.wmv

http://www.getspooln.com/images/Jimmy/engine 2.wmv