I would rather have at least an 82 as they changed to the modern A/C controls that year. The 81-83 models had the single row timing chain. Normally I would say it had to be changed or broken by now, but maybe not if it has sat a lot of its life.

That brings up another problem with stored vehicles. They often wind up leaking everywhere as setting causes all kinds of problems with rubber products.

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Steve Brotherton
Owner 24 bay BSC
Bosch Master, ASE master L1
26 years MB technician