Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   Pelican Parts Forums > BMW Forums > BMW Technical Forums > 101 Projects Discussion Forum: BMW 3-Series

LinkBack Thread Tools Rate Thread
Thread Post New Thread    Reply
Registered User
Join Date: Oct 2011
Location: Cortland, NY
Posts: 44
Water Pump Replacement

When I purchased my '87 325, I had been told that the timing belt & water pump were relatively new, so those were areas that I neglected until now. I was driving the car when the low coolant level light went on and the next day I had a puddle of coolant on the floor of my garage. To my surprise, the leak appeared to be from the gasket to the pump. I had never seen that before. So I bought a gasket and tore the pump out using my Bentley manual.

The manual tells you the sequence of water pump bolt removal in order to accommodate the timing belt idler spring pin, but gives no directions for how to reinstall the water pump with the spring pin for the belt idler. I spent an hour trying to reinstall the water pump with the spring pin and found it extremely difficult.

If I had removed the timing belt, installing the water pump and spring pin would have been much easier. But the belt appeared to be relatively new. With the belt in the way, installing the idler tensioner spring pin seemed almost impossible.

Finally, I removed the pump and pushed the spring pin as far as possible into its proper location in the idler bracket. Then I locked needle nose vise grips onto the end of the pin, so that it was held in its bracket. That allowed me to install the water pump with the spring pin pulled up and out of the way. Once the pump was bolted in and torqued, I released the vice grips and directed the bottom of the spring pin into the detente of the pump.

There may be another, or even better way to install the pump and timing belt idler tensioner spring pin. I would love to learn how other people do it. It would also have been nice if the service manual had given directions. How do you do this job? I'm interested in knowing how mechanics do it.
Old 06-23-2018, 02:15 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Join Date: Aug 2016
Location: Near Annaolis Md . along the Severn River in the woods.
Posts: 117
Hi Steve, I have a car like yours too - bought in a "pop start/ no brakes " condition it is slowly coming back to life.

I did the belt and pump combo job a few years ago without much trouble so I think your correct in your conclusion - but "real" mechanics may have special tricks. I'm a carpenter.

I did have a bad oil leak from the front of the valve cover - used that flouresent stuff to find it - finally I took out the keeper for the camshaft so the oil could drain past and all is good.

If you need any little parts I just finished stripping out our old "e" so i got all the switches etc.

Old 06-24-2018, 05:53 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)

Thread Tools
Rate This Thread
Rate This Thread:


All times are GMT -8. The time now is 08:17 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.