Valve Spring Shim Question - Replace Identical Springs
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From: Central NY, USA
Valve Spring Shim Question - Replace Identical Springs If I am replacing the current valve spring kit (everything.. exh&int valve seal, seat, retainer, locks, spring) with an identical kit do I need to shim or check shim? I am going to try to DIY replace my valve springs when the car comes out of storage for the winter. Thanks for any help
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TSP built them. So my assumption is they did a superb job. I won't know until spring if they have shims. If the reply here is if they were shimmed right the first time and your replacing identical springs you don't need to reshim. If there are shims do I reuse or replace those to?
TSP built them. So my assumption is they did a superb job. I won't know until spring if they have shims. If the reply here is if they were shimmed right the first time and your replacing identical springs you don't need to reshim. If there are shims do I reuse or replace those to?
Was the life of the current springs what you expected?
If you feel the spring life was slightly shorter than you hoped or something then you might take a second look at installed height but otherwise as said if the shims/retainers/locks are all reused in the same spot you should be fine. The "same spot" comment is basically just incase the OEM seat height varied. Not that I have seen it on LS engines but I have seen LT1s that needed varying shims due to differences in the OEM spring seat height.
If you feel the spring life was slightly shorter than you hoped or something then you might take a second look at installed height but otherwise as said if the shims/retainers/locks are all reused in the same spot you should be fine. The "same spot" comment is basically just incase the OEM seat height varied. Not that I have seen it on LS engines but I have seen LT1s that needed varying shims due to differences in the OEM spring seat height.
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From: Central NY, USA
Was the life of the current springs what you expected?
If you feel the spring life was slightly shorter than you hoped or something then you might take a second look at installed height but otherwise as said if the shims/retainers/locks are all reused in the same spot you should be fine. The "same spot" comment is basically just incase the OEM seat height varied. Not that I have seen it on LS engines but I have seen LT1s that needed varying shims due to differences in the OEM spring seat height.
If you feel the spring life was slightly shorter than you hoped or something then you might take a second look at installed height but otherwise as said if the shims/retainers/locks are all reused in the same spot you should be fine. The "same spot" comment is basically just incase the OEM seat height varied. Not that I have seen it on LS engines but I have seen LT1s that needed varying shims due to differences in the OEM spring seat height.
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From: Central NY, USA
http://www.texas-speed.com/p-473-pre...pring-kit.aspx
this is the kit I was told is identical to mine
this is the kit I was told is identical to mine
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Verdad Gallardo I would talk to the vendor but depending on how high end the titanium retainers are I would maybe consider swapping them. Titanium can be fickle, a scratch can turn into a crack and it doesn't mate well with other surfaces so they wont last indefinitely the way we can expect steel to. Not saying you have to replace them, but I would talk to a vendor who sells that about if they think you should change them each set of springs or if you can go a few sets or what.
Good for you understanding springs become a wear item on a cammed setup, seems like too few understand this.
Good for you understanding springs become a wear item on a cammed setup, seems like too few understand this.
Thread Starter
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Joined: Dec 2012
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From: Central NY, USA
I would talk to the vendor but depending on how high end the titanium retainers are I would maybe consider swapping them. Titanium can be fickle, a scratch can turn into a crack and it doesn't mate well with other surfaces so they wont last indefinitely the way we can expect steel to. Not saying you have to replace them, but I would talk to a vendor who sells that about if they think you should change them each set of springs or if you can go a few sets or what.
Good for you understanding springs become a wear item on a cammed setup, seems like too few understand this.
Good for you understanding springs become a wear item on a cammed setup, seems like too few understand this.
You would need to know the exact cam specs in order to get someone to specify the springs installation height.
If you are fine with the preventative replacement interval you have chosen maybe just pull a couple old spring and have them checked to see how much pressure has dropped off. This will help you confirm you have a good interval chosen.
If you are fine with the preventative replacement interval you have chosen maybe just pull a couple old spring and have them checked to see how much pressure has dropped off. This will help you confirm you have a good interval chosen.
If your sure there the identical specs, then there no reason anything will be different. But then you would have already checked everything and know for sure, and not asking online if it will be "ok"
I would check them, everything. And you will learn more, like it sounds like you want to anyway.
I would check them, everything. And you will learn more, like it sounds like you want to anyway.
