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Are these valve guides beyond saving?
Posted: Wed May 22, 2013 8:48 pm
by BlackShadow
As some of you know, I'm in the process of rebuilding a Type-S head. Three of the valve stem seals were missing when I picked it up. Two of the valve guides have some rough edges on them, and I was wondering if anyone has ever encountered something like this before and if they managed to save the guides, or if they had to replace them.
I have heard of some folks filing off burrs and nicks, provided they don't change the diameter of the bore too much.
Sorry for the crap pics, there isn't a lot of room to angle the camera.
Thoughts?
Posted: Wed May 22, 2013 8:49 pm
by Donald
I don't know anything. Don't really know what I'm looking at tbh.
But you're probably going to change them anyway.
Peace of mind?
Posted: Wed May 22, 2013 8:56 pm
by 106pete
Any idea why they are so chew up?
Posted: Wed May 22, 2013 9:27 pm
by lewd lude lover
type s and valves stem/guides
what is the issue I wonder. it seems to hassle loads of them.
I would change them out imho. they look like three day old jobby on a cracked plate. new is always better if you are going to hammer it. If it was a renault laguna then yeah....go fo it...
Posted: Wed May 22, 2013 10:41 pm
by judderod
I'd say they could be saved if you used the right shape rotary burr very carefully by hand to remove the edges. But if I were you I'd take it to an engine shop who will know exactly what to do and how to do it.
Posted: Thu May 23, 2013 12:47 am
by wurlycorner
Might get away with recovering them, but I'm with lewd on this one, I'd try that on a run of the mill motor, but probably not on an H22, just not worth the risk for something that's in a fairly high state of tune/meant to be enjoyed when it's driven.
Have you looked into how much it would cost to get them replaced?
Posted: Thu May 23, 2013 1:22 am
by BlackShadow
wurlycorner wrote:Might get away with recovering them, but I'm with lewd on this one, I'd try that on a run of the mill motor, but probably not on an H22, just not worth the risk for something that's in a fairly high state of tune/meant to be enjoyed when it's driven.
Have you looked into how much it would cost to get them replaced?
I'll have to call some machine shops tomorrow and see. I can get the guides themselves for a decent price, but I have a feeling I'll be raped on the installation.
I hate having to delegate labour.
Posted: Thu May 23, 2013 10:00 pm
by mercutio
@performanceAutoworks may be able to give you a definitive answer