Just installed new Bosch caps, rotors, and insulators on the 92' Renntech.
Said, "made in Spain". Let you know how they perform tomorrow.
They are replacing Bremi's with 20k mi. on them.
BTW, I always replace the 3mm rotor bolts with 4mm heads to relieve any future problems of stripping the heads.
JC220 gave us this info on the bolts:
I got a packet of M5 Cap bolts that are perfect for this application. They have a 4mm allen slot vs the old 3mm one and it is a tight fit on a 4mm key. It will not round out like the OE bolts tend to. This pic compares the OE bolt head & the new one. (Note- this is the old battle scared Bremi Item I had to drill through and cut the bolts to release)
View attachment 114547
So you guys can order whatever bolts you like ahead of the job here’s the details-
· M5 Thread
· 4mm Cap head (Vs old 3mm cap)
· 14mm Thread length. It does NOT matter at all if the new bolt is fully threaded vs the old part threaded one.
View attachment 114548
Thread length can be + - 1-2mm. Or order longer ones and cut them down to match the original bolt length.
My new rotors are already installed. I have bagged & tagged the new bolts for safe keeping so next time I have the rotors off I will swap the bolts out for the better ones.