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Eddy valve stem seals #1093534
10/13/11 12:40 AM
10/13/11 12:40 AM
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NC, USA
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davenc Offline OP
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Can the valve stem seals that come with the Edelbrock RPM heads be used with a dual spring (comp-928)? Or should the seals be switched to a different part? I'm not having much luck finding an answer on any vendor's site.

Thx

Re: Eddy valve stem seals [Re: davenc] #1093535
10/13/11 12:43 AM
10/13/11 12:43 AM
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Delray beach, Florida
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we change the seals out. i'm sure we have the ones you need since we do a lot of those heads. i'm not fond of the seals edelbrock uses.


machine shop owner and engine builder
Re: Eddy valve stem seals [Re: davenc] #1093536
10/13/11 12:44 AM
10/13/11 12:44 AM
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Romeo MI
MR_P_BODY Offline
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Whats the ID of your springs and the OD of the guide

Re: Eddy valve stem seals [Re: MR_P_BODY] #1093537
10/13/11 12:46 AM
10/13/11 12:46 AM
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Delray beach, Florida
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all eddy heads use a .530 od seal. the id of the inner spring on a 928 is .795 if memory serves me correct

Last edited by Performance Only; 10/13/11 12:49 AM.

machine shop owner and engine builder
Re: Eddy valve stem seals [Re: MR_P_BODY] #1093538
10/13/11 12:50 AM
10/13/11 12:50 AM
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davenc Offline OP
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According to COMP, the ID of the spring is 0.795". I don't have the head apart at the moment so I can't measure the OD of the guide. They are the stock e-brock guides though.

The heads had the 928 springs put on them years ago. According to my records, the seals where not switched. Not many miles on the motor but I am getting oil into the cylinders, and it looks like it may be coming down the guide.

I had some MP seals in my garage, and mentioned to my brother that I could swap them in if the seals were gone. He pointed out that I need to be careful about the seal selection with the dual spring, and that set off a light bulb wondering about the original seals from e-brock.

Re: Eddy valve stem seals [Re: Performance Only] #1093539
10/13/11 12:56 AM
10/13/11 12:56 AM
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davenc Offline OP
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If the seal is 0.530, wouldn't there be enough room with the 0.795 spring to not worry about contact, clearance, or displacement of the seal?

Re: Eddy valve stem seals [Re: davenc] #1093540
10/13/11 01:01 AM
10/13/11 01:01 AM
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you might find some of the original seals have come off the guides. they are not a high quality seal and they're pretty big on the o.d.


machine shop owner and engine builder
Re: Eddy valve stem seals [Re: davenc] #1093541
10/13/11 01:01 AM
10/13/11 01:01 AM
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Charleston
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sixpackgut Offline
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Quote:

If the seal is 0.530, wouldn't there be enough room with the 0.795 spring to not worry about contact, clearance, or displacement of the seal?




the eddie seals are big black things. the ones Dan was talking about will be much thinner and better for your application


damn, treed by an old man

Last edited by sixpackgut; 10/13/11 01:03 AM.

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Re: Eddy valve stem seals [Re: Performance Only] #1093542
10/13/11 01:10 AM
10/13/11 01:10 AM
Joined: Aug 2005
Posts: 989
WI, USA
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67dodge67 Offline
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Quote:

you might find some of the original seals have come off the guides. they are not a high quality seal and they're pretty big on the o.d.




Had that issues with several of my eddy seals... but I also had sticky valve guides as well until they were all cleaned up/machined... switched to comp cams .530 seals. Perfect fit and no clearance issues with my dual springs for my roller.

Dave

Re: Eddy valve stem seals [Re: Performance Only] #1093543
10/13/11 01:13 AM
10/13/11 01:13 AM
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NC, USA
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davenc Offline OP
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OK, thx for the response. Seems I will need to pull the springs off to take a look.

Re: Eddy valve stem seals [Re: davenc] #1093544
10/13/11 05:32 AM
10/13/11 05:32 AM
Joined: Nov 2005
Posts: 15,118
85086
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Does this apply to both big and small block?


56 Plaza 63 D100 step side 67 Coronet, 68 Roadrunner, 69 Super Bees, 69 Coronet 500 convertible, 70 Roadrunner Post, 79 D150 360, and a severe case of Mopar a,d,d
Re: Eddy valve stem seals [Re: moparpollack] #1093545
10/13/11 09:23 AM
10/13/11 09:23 AM
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Delray beach, Florida
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Performance Only Offline
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Quote:

Does this apply to both big and small block?




yes


machine shop owner and engine builder
Re: Eddy valve stem seals [Re: Performance Only] #1093546
10/13/11 10:12 AM
10/13/11 10:12 AM
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United Socialist States of Ame...
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tboomer Online work
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I would bet that if you get a hold of Roadhazzard(Greg) he would have something that would work!!


The end is near.....
Re: Eddy valve stem seals [Re: tboomer] #1093547
10/13/11 11:27 AM
10/13/11 11:27 AM
Joined: Apr 2006
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Akron, Ohio U.S.A.
roadhazard Offline
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Here's some of what I offer
The #632FP is probably the best for your application

Re: Eddy valve stem seals [Re: roadhazard] #1093548
10/13/11 11:29 AM
10/13/11 11:29 AM
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Akron, Ohio U.S.A.
roadhazard Offline
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These are for triple springs
I have even more but this should cover the bulk of what guys are using

Re: Eddy valve stem seals [Re: Performance Only] #1093549
10/13/11 12:08 PM
10/13/11 12:08 PM
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organ
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maximum entropy Offline
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Quote:

we change the seals out. i'm sure we have the ones you need since we do a lot of those heads. i'm not fond of the seals edelbrock uses.



i always replace them with positive teflon seals. yeah. teflon. flame on.


for what is the good life if not doing things thoughtfully?
Re: Eddy valve stem seals [Re: maximum entropy] #1093550
10/13/11 01:48 PM
10/13/11 01:48 PM
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Akron, Ohio U.S.A.
roadhazard Offline
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For the old school guys
Polymer advancements have come a long way. There are no O.E.M. users of teflon seals.
But to each his own

Re: Eddy valve stem seals [Re: roadhazard] #1093551
10/13/11 02:44 PM
10/13/11 02:44 PM
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organ
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maximum entropy Offline
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Quote:

For the old school guys
Polymer advancements have come a long way. There are no O.E.M. users of teflon seals.
But to each his own



what's the latest/greatest?


for what is the good life if not doing things thoughtfully?
Re: Eddy valve stem seals [Re: maximum entropy] #1093552
10/13/11 07:14 PM
10/13/11 07:14 PM
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Ambridge, Pa.
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rickraw Online content
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viton

Re: Eddy valve stem seals [Re: rickraw] #1093553
10/13/11 11:54 PM
10/13/11 11:54 PM
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Bend,OR USA
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Cab_Burge Offline
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Quote:

viton


I think Blue, redand other colors onthe new seals, they seem to seal better and hold up better on a high RPM motor


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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