Valve Adjustment 1600 - Alfa Romeo Bulletin Board & Forums
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post #1 of 5 (permalink) Old 01-08-2019, 07:14 AM Thread Starter
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Valve Adjustment 1600

Quick question, I have had several conversations, and searched the topics and threads... here it is.... has anyone set valve clearances to 010 intake and 012 exhaust on a stock 1600 64 Euro spec engine?

The older I get.. the faster I was....
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post #2 of 5 (permalink) Old 01-08-2019, 07:45 AM
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Intake should be 19 and exhaust 21. These are correct for stock cams with gentle opening and closing ramps. 10 & 12 are for performance cams that do not have the gentle ramps. Setting yours to 10/12 will result in a loss of torque.

Ed Prytherch
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post #3 of 5 (permalink) Old 01-08-2019, 07:54 AM Thread Starter
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Originally Posted by alfaparticle View Post
Intake should be 19 and exhaust 21. These are correct for stock cams with gentle opening and closing ramps. 10 & 12 are for performance cams that do not have the gentle ramps. Setting yours to 10/12 will result in a loss of torque.
That's what my concern was thinking it through.

I have a set of 1600 (Alfa period correct Veloce cams still in cosmoline)if I were to install? 10/12?

The older I get.. the faster I was....
Tom
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post #4 of 5 (permalink) Old 01-08-2019, 08:27 AM
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17/19 for Veloce cams. I was referring to modern fast opening cams, eg RJ that are set at 10/12
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Ed Prytherch
79 Spider
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2011 Jaguar XKR

A little government and a little luck are necessary in life, but only a fool trusts either of them. - P.J. O'Rourke
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post #5 of 5 (permalink) Old 01-08-2019, 08:47 AM
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Something I learned from Richard Jemison, the BB "cammaster". Alfa cams wear. Some more quickly than you might imagine. Years ago I had a pair of factory 10.6 race cams in my GTA engine, and after a tune up, it just did not run "right". I discussed this with RJ as I had been through the dual point distributor 2ce, and the Webers and had checked valve clearances. Richard had me tighten up the intake clearances quite a bit, and.... once again it ran "RIGHT"!. Now RJ can probably explain what this happens better than I ever could, so don't ask me. I had some new cams made up for it from WebCam since. These run tighter clearances as new and manufactured, offer quieter running, longer valve adjustment intervals and more low end torque. They are not simply a WebCam copy of the Alfa GTA design.
Check with Richard, Alfar7 on the BB.
This is from my own experience.


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