LATE SANDEN COMPRESSOR BRACKET
Vintage Air redesigned the Sanden AC compressor to Pontiac Engine bracket. If you have this bracket or if you purchase one now this is the bracket you will receive.
To view these images Ctrl+Left click.
http://www.vintageair.com/INSTRUCTIO...2005.25.10.pdf
http://i361.photobucket.com/albums/o...ressorBrkt.jpg
As you can see this bracket mounts to three bolt holes on the front of the cylinder head and the forward bolt boss on the side of the head, making it compatible with both early and late heads. Mounting this bracket flush on the head or even off set 0.608 using the spacers and three bolts provided with the Vintage Air bracket kit will be OK. Moving the bracket forward 1 5/8 required for the serpentine belt modification using only three bolts. The needle on my concern meter started twitching, as I thought about the stability on this arrangement. Calling upon knowledge gained fabricating the spacer extension for the early compressor bracket. I designed an extension bracket for this late compressor bracket, fabricated from the same 1 Ό by Ό steel flat bar stock.
http://i361.photobucket.com/albums/o...Extensiotn.jpg
Moving the bracket forward 1 5/8 requires the use of a 2 ½ bolts. However a 2 ½ bolt cannot be inserted in the top bolt hole because of the closeness of the forward angle.
http://i361.photobucket.com/albums/o...T/IMG_1390.jpg
This requires the use of 3 studs.
http://i361.photobucket.com/albums/o...T/IMG_1398.jpg
They are exhaust manifold studs, 3/8 16 X 3.I purchased at a local Auto exhaust specialty shop.
I also found them at auto parts stores.
If the studs have the hex end do not get them, the hex end is included in the overall length, when installed they are too short.
http://i361.photobucket.com/albums/o...T/IMG_1399.jpg
When installing the studs, be aware the bottom hole is open into the head bolt hole. Installing the stud on an engine with the head bolts in place. The threads should be clean enough to, screw the stud in by hand, apply Loctite on the threads, screw the stud in by hand until it stops against the head bolt and back off about 1 turn. If installing the studs on a head that is not mounted on an engine, thread the stud in by hand watching down the head bolt hole, stopping before the stud protrudes into the head bolt hole.
Before installing the compressor bracket. There is a slight interference with the end of the compressor bracket and the head bolt boss.
http://i361.photobucket.com/albums/o...T/IMG_1360.jpg
Trim off ½ on the bracket end.
http://i361.photobucket.com/albums/o...T/IMG_1357.jpg
http://i361.photobucket.com/albums/o...T/IMG_1363.jpg
Bracket installed with 3 studs and 1 5/8 spacers.
http://i361.photobucket.com/albums/o...T/IMG_1429.jpg
http://i361.photobucket.com/albums/o...T/IMG_1430.jpg
Installing the 93 97 Camaro 5.7ltr engine Serpentine belt Tensioner Dayco #89232 or Gates 38145
On page 8 post #154, Jimmo shows a solid link for tensioner-made from 1 bar stock. That bolted to the belt tensioner and the R4 compressor bracket spacer. Doing some research I found that March Performance lists a large selection of turn buckles.
http://marchperf.com/pg51.html#rods
This is my idea of connecting the serpentine tensioner. Of course I need a longer turn buckle, but this gives you the idea. I dont think using the existing bolt will work as the angle is too steep and the turn buckle wanted to interfere with the belt tensioner. The distance from the belt tensioner to the compressor bracket is about 7 Ύ. So a turn buckle of the correct length would need to be purchased and trial fitted to determine the correct position for the bolt.
http://i361.photobucket.com/albums/o...T/IMG_1431.jpg
I purchased a Goodyear Gatorback serpentine belt # 4060653, to check the pulley alignment.
http://i361.photobucket.com/albums/o...T/IMG_1432.jpg
http://i361.photobucket.com/albums/o...T/IMG_1435.jpg
http://i361.photobucket.com/albums/o...T/IMG_1435.jpg
The modification for the early Vintage Air Sanden compressor bracket is complete. Follow jimmos installation instructions in the preceding posts to continue with the serpentine belt system.