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Re: [TR] valve spring removal

To: Randall <tr3driver@ca.rr.com>
Subject: Re: [TR] valve spring removal
From: Todd Richmond <twr@frii.com>
Date: Mon, 08 Jun 2009 20:12:54 -0600
Thanks Randall.  Is there somewhere I can look up how
many pounds pressure relates to how much compression
movement?

>PS, I assume you know that the triple springs belong
>on the exhaust along with the pedestals; and that most
>replacement sets only have two springs per valve.

Yes.  I actually said that backwards (3 exhaust valves
had the 3 springs, but one set was backwards).  In any
case, it's a sure sign that the engine has been mucked
with before. :)

Todd Richmond
Fort Collins, Colorado
1959 TR3A TS54425L


On Mon, 2009-06-08 at 12:03 -0700, Randall wrote:
> > My next question is in regard to the valve springs themselves.  They
> > look okay,
> > but how can you tell if they need to be replaced?  
> 
> Only way to be certain is check how much force it takes to compress them to
> installed length.  One way to do this is with a bathroom scale, a drill
> press and a ruler (if you happen to have those things available and trust
> your bathroom scale to be accurate).  Or the shop doing the head should have
> the equipment handy.
> 
> Or, just replace them.  They get tired with age even if the engine hasn't
> been run.
> 
> PS, I assume you know that the triple springs belong on the exhaust along
> with the pedestals; and that most replacement sets only have two springs per
> valve.
> 
> -- Randall 
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