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Old 03-16-2008, 11:39 PM
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Question with Valve Springs Diameter

Hi everyone.

I am just finishing an AMC 360 overhaul and about to finalize the heads.
I ran into a problem last night with the new set of Valve springs which came with the compcams complete kit (XE262 h)

The valve seats fit the old stock springs inner diameter but the new springs are larger in both the outer and inner diameter.
Is this going to be a problem the bottom of the new valve springs don't fit tight on the seats?

And also regarding the cam break in. Comp instruction says it's recommended to remove the inner springs when breaking in the cam.
Is this really required?
I don't have the tools to replace back the inner springs after the break in.
I would then have to remove the heads???

I highly appreciate if someone would give me a help on this.

Thanks,
Houman

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Old 03-16-2008, 11:54 PM
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If you try to break in the cam with all the springs in place, you're liable to have to tear the motor down to clean it and buy another cam and lifter set and do it all over again. Here's the tool to change springs with the heads on......
http://cgi.ebay.com/ebaymotors/UNIVE...em150224707982
Or this one if the motor has studs....
http://store.summitracing.com/partde...part=man-41830
Spring seats are cut to size with the proper cutter and arbor....
http://www.speedunleashed.com/shop/c...artner=froogle
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Old 03-17-2008, 12:10 AM
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Thanks for your reply.

But I'm situated in Iran. Far away and don't have access to these parts.

It'll take a long time for me to order these tools.
I didn't remove the inner springs from an Edelbrock Head SBC last year and nothing happened.

Did the same with another SBC with CompCams Springs, and nothing happened. But this time, it's AMC and I'm not really familiar with the consequences.

Can I just remove the inner springs and not replace them back?

Thanks.

Houman


Quote:
Originally Posted by techinspector1
If you try to break in the cam with all the springs in place, you're liable to have to tear the motor down to clean it and buy another cam and lifter set and do it all over again. Here's the tool to change springs with the heads on......
http://cgi.ebay.com/ebaymotors/UNIVE...em150224707982
Or this one if the motor has studs....
http://store.summitracing.com/partde...part=man-41830
Spring seats are cut to size with the proper cutter and arbor....
http://www.speedunleashed.com/shop/c...artner=froogle
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Old 03-17-2008, 12:15 AM
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"I didn't remove the inner springs from an Edelbrock Head SBC last year and nothing happened.

Did the same with another SBC with CompCams Springs, and nothing happened."

Cool!! Go for it.
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Old 03-17-2008, 12:20 AM
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Is this a serious go ahead?

And what about the valve seats? Is it a porblem?

Thanks,
Houman

Quote:
Originally Posted by techinspector1
"I didn't remove the inner springs from an Edelbrock Head SBC last year and nothing happened.

Did the same with another SBC with CompCams Springs, and nothing happened."

Cool!! Go for it.
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Old 03-17-2008, 06:21 AM
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Don't use those springs yet. I will look to see if I can find you a spring that will work with your stock set up. Do be aware, though, that the stock AMC retainers have been known to be weak enough for the valve and locks to pull though in some cases. Give me a couple of days to sort it out for you.

tom
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Old 03-17-2008, 11:31 AM
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Quote:
I didn't remove the inner springs from an Edelbrock Head SBC last year and nothing happened.

Did the same with another SBC with CompCams Springs, and nothing happened. But this time, it's AMC and I'm not really familiar with the consequences.
As far as break in and all, oil especially, probably in that location there are little, if any restrictions as to the use of the additives restricted here. Maybe. I could see that as a possibility. What oil do/have you used in these other motors and in any you use today? Is the oil available there, the same as it is here - in an additive perspective? Houman probably gets the 'good oil' anywhere he goes.
Anyway, do like Tom says and don't shortchange yourself.
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