K100LT Parts Diagram Question

[Dan87]

Going over my 87' I see I'm going to need to rebuild the water/oil pump due to a coolant drip at the telltale weep hole. Looking at the water/oil pump parts diagram on parts fiche at MAX BMW I see diagrams for two water/oil pumps. At a quick glance the only difference I see between the two diagrams is the oil pump pickup.

How do I know which diagram applies to my 87 K100LT?

[koapono]

Greetings,
Usually, upon close examination of parts diagram and component list, you will find a "from" or "to" model year designation for parts that have changed or been modified.
If that's not the case then call MAX with pertinent date: year, model, VIN and they will set you straight.

I have found them to be very helpful and eager to get you the right part.
g'luck

[Laitch]

All the seals, bushings, impellers, shafts and other parts recommended for rebuilding your pump have the same part numbers in either diagram. It can be a costly undertaking. Whether the pump needs a new shaft will be determined when you inspect it; however, many of them are pitted beyond the ability to salvage.

[Billk]

Try Euroelectric.com
Comes with a tool to seat
the seal. They take phone
calls

[Dan87]

Thanks all. thinking about the age of the bike and the miles on the clock I set out to but together a parts list for rebuilding the water/oil pump. Working with MAX BMW I found for just a few more bucks I could order a new pump. Thinking about the time that would go into rebuilding and not knowing for sure if it was successful until installation I opted for buying new. I should have it in a week or two.

[RobP]

Try Euroelectric.com

Should be https://www.euromotoelectrics.com/

[Dan87]

Thanks for the link RobP. I added it to my Parts Supplier list.