ZR-1 Net Registry Forums - View Single Post

Tom · 10-28-2005

Zip ties, hose clamps, and various other things were required on early ZR-1's to stop numerous small leaks in the plumbing. I bought my 90, #672, in May 91 with 2100 miles on it and I've zip tied the pcv valves and done several other small changes on my 90 to stop the small leaks. GM made changes later on to some of the plumbing and rubber fittings to prevent these nuisance leaks. Another interesting thing is if you leak at the radiator hose clamps, the early cars used screw type hose clamps whereas later cars used the typical GM spring type hose clamps.

10-28-2005	#5
Tom Join Date: Jan 2004 Location: Southern CA Posts: 108	Re: PCV valves helped idle Zip ties, hose clamps, and various other things were required on early ZR-1's to stop numerous small leaks in the plumbing. I bought my 90, #672, in May 91 with 2100 miles on it and I've zip tied the pcv valves and done several other small changes on my 90 to stop the small leaks. GM made changes later on to some of the plumbing and rubber fittings to prevent these nuisance leaks. Another interesting thing is if you leak at the radiator hose clamps, the early cars used screw type hose clamps whereas later cars used the typical GM spring type hose clamps.