HomeHi Guys,
Just asking does the valve seals of GTIR same on other SR20?
Just asking does the valve seals of GTIR same on other SR20?
Gtir Motorsport club
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valve seals on gtir
2 posters
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2 Re: valve seals on gtir 4th December 2013, 12:27 pm
GTI-R US
Management
yep im 99% sure they are the same
just remember inlet and exhaust stem seals are different sizes
just remember inlet and exhaust stem seals are different sizes
3 Re: valve seals on gtir 4th December 2013, 3:17 pm
weblizzer
okay cool thanks..
how about the valve? can the valve from other det be use on gtir?
how about the valve? can the valve from other det be use on gtir?
4 Re: valve seals on gtir 4th December 2013, 3:51 pm
GTI-R US
Management
you will need to check on this as I had this problem a year or two back with regard to shimming an engine where someone had swapped various valves
the valves will fit in the guides just the same and can be lapped in no problem, but there is a difference in the height at the top of the valve where the collets sit.
this can give you a huge problem when it comes to doing the shim clearances as one is fractionally higher than the stock gtir valve so this means the valve will be tighter and you wont find a shim small enough to get the specified clearance
the valves will fit in the guides just the same and can be lapped in no problem, but there is a difference in the height at the top of the valve where the collets sit.
this can give you a huge problem when it comes to doing the shim clearances as one is fractionally higher than the stock gtir valve so this means the valve will be tighter and you wont find a shim small enough to get the specified clearance
5 Re: valve seals on gtir 4th December 2013, 3:54 pm
weblizzer
oh i see. because i have this issue which something the clearance on the valve and rocker arm is not on same level that is why i hear some rattling noise on idle. so the problem might be the intechanging valve.
6 Re: valve seals on gtir 4th December 2013, 3:59 pm
GTI-R US
Management
exactly!
the only way you can get round this without making a big job of it is by lightly grinding the top of the valve stem that is sitting higher then reshimming it so the rocker arm is sitting level.
if the rocker arm is tilted slightly to one side this can end up with you throwing the rocker arm off completely at higher rpm so you need to make sure its right
the only way you can get round this without making a big job of it is by lightly grinding the top of the valve stem that is sitting higher then reshimming it so the rocker arm is sitting level.
if the rocker arm is tilted slightly to one side this can end up with you throwing the rocker arm off completely at higher rpm so you need to make sure its right
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