Differential Do-Over

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Update by Tom Heath to the Berkeley Sports project car
May 4, 2009

After a less-than-stellar public debut at the GRM $2008 Challenge, our Berzerkeley was relegated to a dark corner of the garage. Our struggles with sorting the car had been frustrating, and the embarrassing on-course driveline failure put us over the top. Rather than do something rash or reactionary, we parked the car, removed the gearbox for analysis, and moved on with other projects.

Now that we’ve cooled off a bit and reflected on the problems we’ve encountered, we’ve gained a fresh outlook on how to go about resolving them. Since the reversing mechanism is now eliminated, the new arrangement promises to be more durable and undoubtedly simpler. It may require us to get out and push the car once in a while, but we’re willing to live with that compromise for now. Once the car is sorted, we can always reinstall the reversing parts.

Reinstalling the gearbox was easier than the removal; this time, gravity was working for us. We also took this opportunity to rework the tabs that are used to tension the drive chain. Once everything was in place, we decided that it would also be a good time to install a new chain, since ours had stretched beyond our tensioner’s range of adjustment.

With all of the parts in place, we’re ready to continue sorting the car. We’ll try to reduce the ride height as much as possible to lower the center of gravity. We’ll also perform a fresh alignment to make sure everything is pointing in the right direction. Look for more updates as we make progress.

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Comments
mdawley
mdawley New Reader
5/8/09 2:40 p.m.

I use an interactive adaptable reverse gear installed in my Bizzerkeley (aka: Wife).

It has yet to fail me under any conditions but I did here some grinding noises at Road Atlanta during the Mitty when the big storm came and we needed to back up a bit on wet grass......

BTW; can you make me a diff that will handle the 1000cc turbo - I'm living on the original Berk unit!

mgbmbzguy

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