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Old 10-20-2019, 10:06 PM   #1
wolf Wengler
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Default Various Clearances

Stud mounted rocker, BBC, 7000rpm

I was looking at PAC 1227 spring in their catalog. Pac fits the inner spring to the locator plate: .730 locater shoulder into .0731 spring. But the retainer inner is .710 fitted to the same .730 inner spring. I want to use a set of tool steel ratinners I already have that measure the same as PAC's...then I got to thinking about spring clearances. I always thought .015 was at the outside for retainer to spring clearance, in fact I thought 0.00 would be best, but that's just me.

What's the range of acceptable clearance for

1) valvespring to spring pocket or cup

2) Retainer to inside of outer spring and inner spring

3) Inner spring to spring locator

4) rocker arm to stud

anything else you might think of?
thx!
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Old 11-02-2019, 10:30 PM   #2
wolf Wengler
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Default Re: Various Clearances

I'd sure appreciate some help...
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Old 11-02-2019, 11:54 PM   #3
RCM Racing engines
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Default Re: Various Clearances

I like about .015 of clearance retainer steps to spring
Same for an ID spring locator.
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Old 11-04-2019, 08:02 PM   #4
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Default Re: Various Clearances

Quote:
Originally Posted by RCM Racing engines View Post
I like about .015 of clearance retainer steps to spring
Same for an ID spring locator.
Thanks Carl, what about the outside bottom to the cup or pocket?
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