I have a Vega power steering box in my model A coupe. Brand new build, probably less than 500 miles on it. It appears to be leaking from the pitman shaft seal. I called the supplier (Speedway Motors) and they referred me to the manufacture. I e-mailed CPP in california asking for the part number of the seal so that I could have one "in hand" before I started the job of changing it. CPP (the manufacture) doesn't know the part number of the seal. Anybody out there have and experience here. Thanks STEVE While I am tempted to rip the box out of the car and send it back to Speedway I would much prefer to change the seal and be done with it. And yes I don't really expect changing the seal to fix it because there is probably another root cause of the seal failure, its the easiest fix.
If its a GM built box National seal will list it in their catalog. If its China made who knows. You can always pull the seal,and measure the OD, ID, thickness,and have someone at a REAL auto parts store,or bearing house match one.
The power steering box will have two seals in it and two washers/spacers along with the snap ring. https://www.rockauto.com/en/moreinfo.php?pk=1054&cc=1061996&pt=7344&jsn=10927 A manual box only has one seal.
possible seal was slightly damaged when pitman arm nut was tightened down. What type of power steering pump being used? What type of suspension installed?
Speedway can't send you the seal? A few of the things I bought from speedway,Master cylinder did not take oem parts.
I doubt that speedway even lists a repair part like those seals in their catalog at all. As Irish Steve said he will have to take the seals out measure them or get the seal number off them and source new seals. The seals can be removed and replaced with the box on the car but it is a bit challenging to get them out. I've done a bunch of them that way but don't recommend it. I don't see how tightening the pitman arm nut could damage that seal unless you are using a 6 ft cheater bar and way over tightening the nut. They leak because of wear and the fact that when you turn there is some pressure applied there. Mostly just due to age and wear though. Step by step, After you have the pitman arm off. Remove the snap ring, Remove the outside washer, remove the outside seal, Remove the inside washer, Remove the inside seal. Inspect the pitman shaft and install seals, washers and snap ring in reverse order.
Some you just remove the snap rings and start the car and turn the wheels a little,make sure there is a drain pan psi will push them out.
Yes ! Send it back to Speedway and get a manual box from Borgeson! https://www.borgeson.com/Saginaw-Manual-Boxes/ Pete
Have you got a cooler in the return low pressure line. People think on some late model cars that they are not there. But the return line is zig zagged to increase surface area for cooling and fitted it iarflow
So got everything sorted out. The reason for PS in a model A is for my 73 year old wife, plus motor came with it and serpentine belt. I installed Borgeson 8799001 pressure reducing kit, hoping this would help. It has helped in that steering is not so "light" now. However the real leak was the high pressure hose adaptor fitting in the top of the box. With fitting tight the seal washer was "loose" ........... DUH. Ground .065" off the end and bye bye leak. Don't know if problem was adaptor "too long" or box improperly machined. I am finally getting to put some miles on this car. Very happy now. thanks all STEVE
I honestly cant recall that Vegas had a power steering option. Hmmmm. Mitch. *Upon further research, I found that PS was available in Vegas and V8 Monzas. This I never knew, learn something new every day!!
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