Has anyone tried raising the compression of their engine by removing the head gasket and using a copper paste gasket sealer?
Has anyone tried raising the compression of their engine by removing the head...
Doubt it would hold.
I don't use a copper gasket I use a O-ring it sealed pretty good no leaks good compression
Just mill the head, really opens up the motor, crazy difference after doing that to my IT200
Did brak mod your head for that? That sounds like a good idea
Nichelle Middaugh, did you have a groove machined in the head? How does the o ring stay centered?
Yep he did and he,has a o ringed head on his yz 490 too
Yep had a grove made in my head my bf did it
How much do I need to mill off ?
I'll tell you later today when my dad gets off work, he did it like 5 years ago so I forgot haha
Ok, thanks. I have two and one is going to be a hot rod.
it must have hurt!!??
(the groove in your head)
I have yz/IT, and ty 250 engines here. They all use what looks like the same head gasket...until I measured the thickness....044" all the way down to .029"....TY, then IT, then YZ...
Of course, one must have access to a mill or lathe to do this... which I don't. I used to mill heads in high school metal shop... we chucked them in the lathe and did it at very low speed. You want to take off just a little at a time.. try .010" first. (ten thousandths of an inch) Since it is very easy to take a two stroke head off and on.. I would try a little at a time, and if .010 doesn't do much.... pull it off and try another .010
Doug Fergus I had my buddy do it for 15$ he has a machine that does it being he has a atv shop
How much did he take off?
Doug Fergus I honestly forgot but I'm pretty sure it was twenty thousandths of an inch
It opened it up big time
Ok thanks. My friend has a machine shop. Sounds like a plan.
John, before doing any machining check the squish and go from there .040-.050 would be good, then make a decision on what you want to do.
can a 400 mx gasket worl on a 400 it and raise the compression?
use calipers to measure the thickness of each... use the thinner of the two gaskets... easy. If you don't have a caliper.. buy one at a hardware store or online. You should have one.. you'll find lots of uses and wonder how you got along without one.
Here's what I ment jack asses...
Very nice job.. and a great idea.
I'll have that checked too, thanks.