Autopendium :: stuff about old cars

Tags: balancing engine pistons rockers valves

As part of Doing The Job Properly I'd decided that given we were going to have to rebuild the Amazon's engine (see here, we'd do it properly, which meant balancing the crank, flywheel, pistons etc.

Inevitably it was not going to be that easy. First the flywheel bolts were not the same, so I needed to get a matching set from Amazon Cars (before which I trawled all of West London trying to find a new set of the right sort and sufficiently good steel) different.

Then somewhere along the line the clutch bolts had gone missing. Serdi UK -- who were doing the balancing and also the machining of the head to allow for the double-sprung valve springs from IPD -- took all this in good grace and were very patient, and did a very thorough job, even though it was tickier than they expected.

The problem? The pistons didn't weigh the same -- one being out by 8g -- quite a lot in this context.

Anyway, job's now done, and the engine's ready to be rebuilt, except for finding some new rocker arms to replace my damaged ones. Anyone got a line on some, please let me know.

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