Quote:
Originally Posted by marco5
I have a 85 300D with about 450,000-500,000 km on it. I've been reading through a lot of posts with the vacuum pumps and I was just wondering if I should do a full overhaul even tho it's not required?
Do you high mileage W123 owners replace the vacuum pump as a precaution? I don't want mine to go kaboom one day and mess up my chain etc. What's your replacement recommendation if your timing chain has minimal play?
|
I don't have my notes here but you should go to the repair links.
You could pull off the Vacuum Pump and check and see if your pump has the unshielded bearing; you will be able to see the balls and the bearing cage. Especially if the cage is plastic replace that bearing.
In the repair links you will find that if the timer shaft bushing has too much end play it can destroy even a new Vacuum Pump.
Concerning doing a complete rebuild. There is 2 kits. One for the Piston and one that has a replacement arm and bearing assembly. If you could find both kits they would cost you more then a new Vacuum Pump (which used to be made in Spain) and if you rebuild it yourself you will halve no warranty.