5l4life

I was just wondering if anyone have ever heard of a 306 engine blowing out two head gaskets at the same time? I have a 88 lx and the car one day when i was driving it a bit two hard it started working like Crap.So I got to wark and done a compression test and found that cylinders 4,5 and 7,8 were dead. so i tore the engine down to find that two head gaskets were blown out in between cylinders. What would be some advice to what may have happened? is this normal? has anyone heard of a Warped Block? or am i looking at maybe something else?

any help would be greatly appriciated! thanks.

94StinkinLincoln

timing being too far advanced.
i did that once, the gun had a dial on the back for advancement and it was turned way up and i didnt know it. i drove it down the road to check for pinging and i didnt get any, went up 1 degree, no pinging, so i went up 3...well it pinged. i couldnt get the car to idle or start worth crap and i did a compression check, 1 dead cyl.
one gasket had 3 blown, 2 of them touching, the other side had one.

FivePointOhh

since you have it torn apart i'd use a striaght edge and feeler guages to make sure things arent warped. be nice to know before you get it all back together and blow two more.

94StinkinLincoln

ditto on that ^^

mjr46

check all surfaces and make sure heads are torqued in proper sequence and make sure you have a working radiator cap

ZachW04Stang

Don't use a cheap torque wrench when torqueing heads. They can be 10-20lbs off sometimes. I tested a craftsman one I had on the matco tool truck and it was 17lbs low when I had it set at 100ftlbs.

mjr46

lol craftsman torque wrench ftl!!!! mine are all snap daddys!!!

FivePointOhh

<---tool shop cheap 20dollar torque wrench. just had it tested before i redid my top end over the summer and checked out just fine




you guys and all your money