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PAECO Camshafts

 
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jeneese  



Joined: 16 Oct 2015
Posts: 19
Location: Cottage Grove, WI

PostPosted: Wed Jan 22, 2020 5:38 am    Post subject: PAECO Camshafts Reply with quote

Does anybody know who ground the camshafts and supplied valve spring components from PAECO. They are apparently out of business, thankfully.
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Jim

Porsche 1982 Euro Spec 924
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MikeJinCO  



Joined: 08 Jun 2010
Posts: 929
Location: Maysville, Colorado

PostPosted: Mon Jan 27, 2020 10:10 am    Post subject: Reply with quote

Don't know for sure, but when I was looking at cams they looked like they might have been from Webcam. Elgin cams also has quite a few and developed many of the race cams back in the day. Reground cams require additional shims due to the reduced circle dia. Alfa Romeo 9mm shims come in 100+ sizes and are about $4 each. My Elqin 66-15 is great.
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Mike
Poco a Poco, #033 '78 Vintage racer, SCCA Dp-81
'77 924
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jeneese  



Joined: 16 Oct 2015
Posts: 19
Location: Cottage Grove, WI

PostPosted: Tue Feb 04, 2020 6:17 am    Post subject: Reply with quote

MikeJinCO wrote:
Don't know for sure, but when I was looking at cams they looked like they might have been from Webcam. Elgin cams also has quite a few and developed many of the race cams back in the day. Reground cams require additional shims due to the reduced circle dia. Alfa Romeo 9mm shims come in 100+ sizes and are about $4 each. My Elqin 66-15 is great.


Cant you give me a part number so I know where to look for these Alfa valve shims.

Thanks

Jim
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MikeJinCO  



Joined: 08 Jun 2010
Posts: 929
Location: Maysville, Colorado

PostPosted: Wed Feb 05, 2020 2:05 am    Post subject: Reply with quote

Go to Centerline Alfa, looking for 9mm valve stem shims. They are on the early(1960's) twin cam motors.

Using the adjustable lifters you can probably get all the same thickness. Summit Racing and Jegs etc. have fixed thickness cam shims, but finding the 9mm size could be tougher as most valve stems smaller these days. Check with Ferrera valves also. Measure the base(term?) diameter of the new cam versus a stock one should get you close on the thickness needed.

I'm using the Parner cam followers we group bought several years ago and they are solid rather than adjustable and much thinner than stock. We found some known shim stock to stick under the cam followers to make measuring easier, then calc'ed what we needed.

One(of the many) of the design problems of our motor is that the valve train is very heavy so they require stronger springs and load/wear the cam more. Moving all that takes power away.
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Mike
Poco a Poco, #033 '78 Vintage racer, SCCA Dp-81
'77 924
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jeneese  



Joined: 16 Oct 2015
Posts: 19
Location: Cottage Grove, WI

PostPosted: Wed Feb 05, 2020 2:17 am    Post subject: Reply with quote

MikeJinCO wrote:
Go to Centerline Alfa, looking for 9mm valve stem shims. They are on the early(1960's) twin cam motors.

Using the adjustable lifters you can probably get all the same thickness. Summit Racing and Jegs etc. have fixed thickness cam shims, but finding the 9mm size could be tougher as most valve stems smaller these days. Check with Ferrera valves also. Measure the base(term?) diameter of the new cam versus a stock one should get you close on the thickness needed.

I'm using the Parner cam followers we group bought several years ago and they are solid rather than adjustable and much thinner than stock. We found some known shim stock to stick under the cam followers to make measuring easier, then calc'ed what we needed.

One(of the many) of the design problems of our motor is that the valve train is very heavy so they require stronger springs and load/wear the cam more. Moving all that takes power away.


Thanks, Very useful information. Raced a Porsche 356 and formula V for many years. Much easier to work on for sure.
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