- Joined
- Nov 19, 2002
- Location
- Northern Washington
it was Ed at Delorean Europe that told me that you cant put odd-fire cams on even-fire crank.
Is just a valve timing issue. Measure valve events with a correctly set up degree wheel on the crankshaft.
Many years ago I hired an intelligent machinist to drill holes in cam gears such that they can be installed in different positions to get cam timing just so.
Speaking of cam timing.... anyone who uses a reground cam will do themselves a favor in verifying that all cam events are timed right for all cylinders. Lot of work but better done before starting it up. Ask how I know. Grrrrr....
funny story John, i thought i had a set, as i bought a B280 along with a few other engines from a forum member. however it seems at some point they got robbed off the b280 as it had the same style rockers a b27 or 8 would have. however i expressed my concern to my contact, and he said when he has the performance cams ground, he also has the rockers resurfaced and parkerized, along with mildly opening the oiling holes, which in his experience, has allowed his camshafts to live. hopefully i will be in the same boat.
The aluminum rocker arms were only available via the parts department at Volvo. I never set valves in a B-280 that had them. Always steel.
Those rocker arms in photos all look to be steel. A magnet will quickly tell you if they are steel or not.
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