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PCA Member since 1988
Join Date: Feb 2018
Location: SW Washington State
Posts: 4,637
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Buck, if it's clean on both ends and clean where it contacts the body and trans, and securely connected, then you're fine.
If you really want to test it, here's how:
With the engine/trans in the car and the starter connected, crank the engine. If it cranks strongly, your ground strap is good. The current to the starter returns through that ground strap. Around 80 amps when cranking cold. DO NOT try to crank the engine with the ground strap disconnected. There are several other wires through the harnesses between the engine and the body and if you try to crank the engine without the ground strap, the return loop of current will go through those small wires and fry them.
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1973.5 911T with RoW 1980 SC CIS stroked to 3.2, 10:1 Mahle Sport p/c's, TBC exhaust ports, M1 cams, SSI's. RSR bushings & adj spring plates, Koni Sports, 21/26mm T-bars, stock swaybars, 16x7 Fuchs w Michelin Pilot Sport A/S 3+, 205/55-16 at all 4 corners.
Cars are for driving. If you want art, get something you can hang on the wall!
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