new headgasket?

[Del Slw]

my friend finished building his motor.
b18a1 block bored to 84mm.

when he starts it up, its making a rather loud knocking/slapping noise.

he is using a stock LS head gasket. could that be the problem? could the pistons be hitting the head gasket since it is a different bore?

it's not the valves. and there is nothing loose. it kinda sounds like the timing belt smackin the cover, but its not.

any ideas?

-Robbie

 

[E_SolSi]

hes using an 81mm head gasket on an 84mm engine??????

smack him

then tell him to get the right sized gasket

 

[Del Slw]

so that is most likely what is causing the noise?

 

[D See 2]

i would definitely think so...

 

[Del Slw]

so can he use a b20 headgasket?

he's running a lsvtec btw.

 

[eastonball]

I'm sorry, but thats just funny. Thats like Trying to fit a bowling ball into a hole the size of a baseball, and wondering why it doesn't fit... Sorry, but it's a little too big.

Didn't he wonder... whats going to happen to the over hanging Head gasket material?

 

[NotUrAverage_Si]

Originally posted by Del Slw@Apr 12 2004, 07:40 PM
my friend finished building his motor.
b18a1 block bored to 84mm.

when he starts it up, its making a rather loud knocking/slapping noise.

he is using a stock LS head gasket. could that be the problem? could the pistons be hitting the head gasket since it is a different bore?

oh dear god...

please tell your friend to throw himself on a rusty chainsaw blade.

 

[MikeBergy]

you can order cometic headgaskets for the ls vtec application, oversized bored too I believe. If you go with a stock ls Head gasket, get it bored to match the cylinder bore. What a goofus. Next I suppose you'll be telling us he used a b16 timing belt.