Valve shim question

[jimtash]

If the correct size shim isn't on hand to get it in the middle of the clearance range, would it be better to go one size larger or one size smaller? I require a 2525 but have a choice between 2550 and 2500.

 

[SHObill]

If its intake go tighter, if its exhaust go loose.

 

[shotime1994]

I have a bunch of 2525. I could send you one if your not in a rush.

 

[jimtash]

Thanks Shobill.

And thanks for the offer. PM on the way for the shims.

 

[rubydist]

too loose is always safer than too tight.

I also have a 2525 I could send. I could use a 2575 in return.

 

[jimtash]

too loose is always safer than too tight.

I also have a 2525 I could send. I could use a 2575 in return.

Have one on hand.

Anybody know an easy to way to measure the shim sizes. Have six with no numbers and my calipers are useless.

 

[SHObill]

not an easy one. but , install no# shim after checking clearance from a 'known' shim & do the math!

 

[JRA2000TL]

On my 89, I had 2 out of tolerance (one bearly--didn't have the correct shim size and left it), and another that was out quite a bit, so I ordered 1 shim size up and that didn't do the trick (still too loose). I found an even thicker one in my garage and used it, and even then, it still was a bit loose but a better than before. I ran with it like that. I think if they're out .001 or whatever, it's not the end of the world. Always get it perfect if you can while you're in there, but if it's very close, you shouldn't have a problem. I didn't feel like ordering 10 and guessing, then leaving the car down another week waiting on parts. So far so good.

 

[jimtash]

not an easy one. but , install no# shim after checking clearance from a 'known' shim & do the math!

Yeah, thought so. Thanks.

 

[jimtash]

On my 89, I had 2 out of tolerance (one bearly--didn't have the correct shim size and left it), and another that was out quite a bit, so I ordered 1 shim size up and that didn't do the trick (still too loose). I found an even thicker one in my garage and used it, and even then, it still was a bit loose but a better than before. I ran with it like that. I think if they're out .001 or whatever, it's not the end of the world. Always get it perfect if you can while you're in there, but if it's very close, you shouldn't have a problem. I didn't feel like ordering 10 and guessing, then leaving the car down another week waiting on parts. So far so good.

Yeah, that's why I was asking about going looser or tighter. Then the offers came in so might as well wait and get it perfect. Good guys here.