time for a rebuilt... suggestions needed...

[yangtech]

took my motor out in the winter to do some work on it and totally should of redone my motor... after adding cams, 16g, 3g lifters, arp head studs, removing bs, new water pump, fidanza flywheel, clutch, ects... did a compression test on it and it was reading 130 across the board, so i decide to take it out and break in the clutch, while at it i stepped on it while coming home and the car stalled and wouldn't start so i took it home and did a compression check on it... i got no compression on number 2 and 3 the spark plugs looks normal and there's no sign of pre-ignition or mechanical damage...

do you guys think my motor is toasted? should i just take it out and rebuild it anywayz... looking for any suggestions...

 

[Old Mitsu Tech]

I'll put my money on the timing belt slipping. Remove the covers and see if you can get the marks to line up.

Let us know what you find.

 

[yangtech]

timing is on the mark just like before... headgasket maybe..? i've only put 10 miles on it...

 

[kottyking]

Any smoke coming out of tail pipe? If so what color? Sounds to me more like a timing/ignition issue.

 

[yangtech]

white puffs of smokes comes out of the exhaust when i crank it... the timing looks dead on and i've check it a couple of times... i still not sure why i have compression on 1 and 4 and zero compression on 2 and 3...

 

[TAI92GSX]

Shoua,

It sucks with all that money and hard work and after only 10 miles things like this happen.

Usually when you get low compression on the two cyclinders that are next to each other like that. Its most likely a headgasket thing especially with the white smoke from the tail pipe. You should really get a leak test and perform leakdown test on the motor. Hopefully you find out whats wrong.

 

[yangtech]

hey Tai - hopefully is nothing major, i would hate to have to take the motor back out again and redo everything