fastuning

hi, my mechanic have install today my KSPEC decomp plate 3mm in my 1.6 engine....

all good....he started the car and all perfect....he go some time with the car and all perfect....but start at 15 minutes started it begin to throw water steam.....

the water was be mixed with the oil....

what can be happend?

Mad-Machine

did he install with two gaskets? One on each side of the decompression plate?

Also, do you need longer headbolts with the plate?

01tibby

did he torque things down properly?

TiburonWao

As Mad-Machine said.... I think that you will need two gaskets... one for each side of the dec. plate..


BTW.. check for wierd noises inside the engine.... hope the water don't make any damage.... I dont think so... but you better check...

fastuning

i bought the decomp plate in KSPEC and it come with 2 metallic gasket each in one side....

Mad-Machine

but did your mechanic install both of them?

MAXXTIB

Did he use new head bolts, our cars use a special head bolt that should be replaced every time the head is taken off.

Mad-Machine

"Stretch to yeild" is the term. You take them to a specific torque and then give them another quarter or half turn.. and it literally stretches the bolt to give you the proper mounting pressure for the head. You CANNOT reuse them.

Viper966

the cyl head bolts are NOT strech to yield bolts!!!! they CAN be reused

JonGTR

^^^I'm with him. They can be reused.
There is also a proper sequence to tighten them in. Inside -->Out, and diagonally.

He either didn't tighten them down enough, tightened them down in the wrong sequence, or the head is warped really bad.