Autozones around here recently (within the last year) started to rent out (free) single stage vacuum pumps. You may want to check your local Autozone for SKU 90059 R-AZ if you do not want to buy one. Make sure there is sufficient vacuum oil in the sight glass.

I currently have 2 of them on rental from 2 different Autozones to do some tests and experiments. They are different pumps with the same SKU. Tag on one says is a 1.5 CFM unit 1/6 HP micron not specified. The other says 3 CFM 1/3 HP 80 micron ultimate vacuum. I do not have a Micron gauge so can't verify what's claimed.

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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked