[sasktag]

Does anyone know what the stock original shim thickness is? I am planning on doing my first lash check and would like to order a few sizes of spare shims. Thanks

 

[rbabos]

Does anyone know what the stock original shim thickness is? I am planning on doing my first lash check and would like to order a few sizes of spare shims. Thanks

I'd just get a set of 10mm shims from HotCams. Then you will have all the common needed sizes.
https://www.amazon.com/AHL-10-0mm-Adjustable-Valve-2002-2016/dp/B01NBSR0QT
Ron

 

[RustyG]

I ordered a set of 200 shims about 10 years ago. It was the only thing available at the time and was touted on this forum.
'
Never had the need to want for shims since.

 

[sasktag]

Thanks for the advise guys. I will likely order a set. I have a surface grinder so I could likely make do with thicker shims and grind them to size if needed. That's why I was curious as to the stock original size. BTW this is my first v/v lash check and I'm at 47k miles so I'm counting on some needed adjustment.

 

[rbabos]

Thanks for the advise guys. I will likely order a set. I have a surface grinder so I could likely make do with thicker shims and grind them to size if needed. That's why I was curious as to the stock original size. BTW this is my first v/v lash check and I'm at 47k miles so I'm counting on some needed adjustment.

Surface grinder, cool. Those bitches are hard. Let us know how far off it was at 47k.
Mind you, who said it was perfect from the factory and I have to wonder if the first checks eliminate any factory assembly, less then perfect fits.
Ron

 

[Tie_One_On]

Does anyone know what the stock original shim thickness is? I am planning on doing my first lash check and would like to order a few sizes of spare shims. Thanks

last time looked at mine I only had on valve shimmed and it was a shim specific to the size needed to get within spec.
Your question prompts one to think if you know how to check tolerances to begin with.
Get a repair manual and read through the process about 5 times or more befaore you begin

 

[RustyG]

My 2007 has 175,000 miles on it and I have religiously tested the valve lash. First at 15K miles then about 20K thereafter. I have had to replace at least one shim in every instance except the last two. The last two the clearances were within specs. about due for another check up.

 

[sasktag]

last time looked at mine I only had on valve shimmed and it was a shim specific to the size needed to get within spec.
Your question prompts one to think if you know how to check tolerances to begin with.
Get a repair manual and read through the process about 5 times or more befaore you begin

Hi Tie one ON, thanks for the reply.
Yes I have a service manual. You asked if I know how to check the tolerance. We don't actually check the tolerance. We check the clearance(valve lash) between the camshaft and the tappet with the use of a feeler gage. The tolerance is the difference between the minimum and maximum clearance. In this case the tolerance would be .0018" If the clearance or valve lash is not correct, then the shim under the tappet is exchanged for one of the proper thickness to obtain the correct clearance or valve lash.
So are you saying the last time you checked yours, only one of the valves had a shim? I could be wrong but I would think all the valves have a shim between the valve and the tappet. I apologize if I misunderstood your reply.
Thanks, Trevor

 

[Tie_One_On]

last time looked at mine I only had on valve shimmed and it was a shim specific to the size needed to get within spec.
Your question prompts one to think if you know how to check tolerances to begin with.
Get a repair manual and read through the process about 5 times or more befaore you begin

Hi Tie one ON, thanks for the reply.
Yes I have a service manual. You asked if I know how to check the tolerance. We don't actually check the tolerance. We check the clearance(valve lash) between the camshaft and the tappet with the use of a feeler gage. The tolerance is the difference between the minimum and maximum clearance. In this case the tolerance would be .0018" If the clearance or valve lash is not correct, then the shim under the tappet is exchanged for one of the proper thickness to obtain the correct clearance or valve lash.
So are you saying the last time you checked yours, only one of the valves had a shim? I could be wrong but I would think all the valves have a shim between the valve and the tappet. I apologize if I misunderstood your reply.
Thanks, Trevor

by your original question it doesnt sound like you know how to work on the intricates of an engine so It was an attempt at saviving you from yourself.

so sorry if my assumption was incorrect
PROCEED ON

 

[sasktag]

Hey Ron, I took your advice and ordered the shim set you recommended. It will be a few weeks to arrive. I'll let you guys know what I find when I do the lash service.
Rusty, 175,000 miles. That's impressive.
Thanks again guys, Trevor

 

[TaxmanHog]

I could be wrong but I would think all the valves have a shim between the valve and the tappet. I apologize if I misunderstood your reply.
Thanks, Trevor

by your original question it doesnt sound like you know how to work on the intricates of an engine so It was an attempt at saviving you from yourself.

so sorry if my assumption was incorrect
PROCEED ON

:stilpoke::angeldev:

 

[sasktag]

My shims arrived a few days ago so I decided to start the v/v lash check. This is the 1st check and after 47,000 miles they were not out much. Front cylinder: exh .0130" and .0123"
int. .0063" and .0075"

Rear cylinder: exh. .0125" and .0134"
int. .0083" and .0088"
So my question is do the valves have a tendency to increase or decrease clearance? I thought I read on here a while ago they tend to tighten up.
Thanks, Trevor

 

[RustyG]

Here is the "coffee can" method. --> LINK

 

[H-D Heathen]

Here is the "coffee can" method. --> LINK