Shimming lifters

[Spyder]

Was there a thread in this section on shimming lifters?

I was wondering if I needed to do it to my engine as I have beehive springs and retainers installed.

 

[tektic]

I think its only done with cam regrinds.

 

[BogusSVO]

Why do you think you need to shim your HLA's?

Correct, the only time you really need to shim the HLA is with a reground cam, or when a shop really flubbed the valve job and set tip height waaaaaaay to short.


Beehive springs have no input to having to shim the HLA.

 

[Spyder]

I was told it was recommended when installing beehive springs and retainers.

 

[ktmrider]

^^ Most likely they suggested you "shim" the aftermarket valve springs ( Install Height, Seat Pressure, Spring Bind at Max Lift ).

 

[Spyder]

Got it. Thanks

 

[BogusSVO]

What beehive kit did you get?

 

[Spyder]

Used beehives out of an evo. I had them measured at my machine shop and they were well with in spec. at installed height.

 

[BogusSVO]

So that is around 65lbs @ 1.575

 

[Spyder]

They checked and said they were 70 at that height. So I said go ahead and use them.

 

[FlyingEagle]

As a side note but still on topic, what type of shim should be used?
I just sent a set of regrinds (HKS264 profiles) and would like to know what is best to recommend to him. Previously, it appeared that non-hardened washers were used, the type from the hardware store. Not sure about the properties of the coating but they looked like plain stamped steel. What height is recommended?

 

[BogusSVO]

The shims used under HLA for regrind cams is just a run of the mill #6 flat washer, appox .040 thick.

The shims used under valve springs are made by VSI (Valve Spring Insert) and come in .015, .030 and .060

 

[FlyingEagle]

Perfect, that is exactly what I was hoping for. Thank you very much BogusSVO!

 

[bigblock4g63]

I have used these in the past.

click

Maybe SVO can post what part numbers he uses. I will look for the numbers I used from GOODSON

 

[bigblock4g63]

click

 

[BogusSVO]

Bad thing about VSI is they package for builders, so each box is a lot of 100, (50 for the HP)

The Tomi are just expensive, really? $11 bux for a 8pk??

The VSI run about .75 per shim