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#1 |
![]() Join Date: Jan 2006
Location: Decatur, AL
Posts: 1,112
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Well my 90 project is taking longer than I expected, I am opening a new business - I was supposed to open March 1st but had permits issues...ANYWAY, about to start taking the top end off my 90, I have the brake booster out for several reasons, mainly getting access to the cam bolts SO I have never had issues with a booster in my late C4's BUT earlier including up to 89, the boosters seem to go bad at about 60k miles. This 90 ZR-1 has 33K miles BUT now it is 2020 and it's 30 years old , I am thinking of sending it for a rebuild while I have the time, but wonder if I should leave it alone...thoughts? Anyone have good experience with a brake booster rebuilder? I could go aftermarket since the label on the OE is washed off although I haven't shopped aftermarket at all. The booster has no current issues that I know of.
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Corvette95 Registry and Forum (*************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454 |
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#2 |
![]() Join Date: Aug 2006
Location: McLean, VA
Posts: 3,713
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For what it,s worth, my 94 booster has been trouble free at 171,000 miles.
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#3 | |
![]() ![]() Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,794
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Thank you for the information ![]() That information is worth a lot ![]() And I assume your chain guides are original also?
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Left Clickable links ![]() -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 03-08-2020 at 10:42 PM. |
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#4 | |
![]() Join Date: Aug 2006
Location: McLean, VA
Posts: 3,713
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I think I replaced all chain guides with Phil supplied low mileage pieces. Phil kindly provided low mileage cam chains among other hard to find parts. Oil pump was replaced with a new unit - lucky find on Ebay. |
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#5 |
![]() Join Date: Dec 2019
Location: st louis mo
Posts: 748
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I would leave it be, it may come back not working
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#6 |
Join Date: Feb 2018
Location: owens valley
Posts: 25
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I have 247 k miles and mine works just fine
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