The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: wxp on March 13, 2011, 08:43:24 AM

Title: oil pressure sending unit
Post by: wxp on March 13, 2011, 08:43:24 AM

Any one have a list of part numbers for parts they used other than OEM BMW parts.  

Like a napa part number for the oil pressure switch?? :-/

Title: Re: oil pressure sending unit
Post by: Rob Valdez 79 R65 on March 13, 2011, 08:56:01 AM

Wells Mfg. Corp. PS 102 Oil Pressure Switch is exact replacement for BMW switch and can be purchased from most auto parts stores as Volkswagon Beetle Oil Pressure Switch....

http://www.ibmwr.org/otech/partsubs.shtml

Title: Re: oil pressure sending unit
Post by: montmil on March 13, 2011, 10:32:06 AM

Quote

Wells Mfg. Corp. PS 102 Oil Pressure Switch is exact replacement for BMW switch and can be purchased from most auto parts stores as Volkswagon Beetle Oil Pressure Switch.

May be a good idea to take your old OP switch with you and compare threads. Some similar-looking sender switches for germanic vehicles have different threads. Safer than an oops and bodged engine case threads.

Monte

Title: Re: oil pressure sending unit
Post by: Barry on March 13, 2011, 02:15:39 PM

There is an oil pressure sender in the attached Word document which is a list of subsitute parts shamelessly copied from this web site http://www.ibmwr.org/otech/partsubs.shtml.

I just filtered out the parts not relevant to our bikes.

Title: Re: oil pressure sending unit
Post by: wxp on March 13, 2011, 03:57:18 PM

Thanks

Title: Re: oil pressure sending unit
Post by: R65Guy on March 14, 2011, 01:17:51 PM

Airhead guru Snowbum discusses oil sender switches on his website:
http://bmwmotorcycletech.info/Oil.htm

Skip to notes 21, 22 & 23...

His basic concern (although minor) is the BMW switch activates <8 psi and many aftermarket switches activate in the 25 psi (or more) range. Extremely hot oil and/or heavy braking could cause the aftermarket oil switch to activate under normal operating conditions - thus causing needless concern.  According to him ~15 psi would not be considered abnormal in certain conditions.  Food for thought.... ymmv

Title: Re: oil pressure sending unit
Post by: Rob Valdez 79 R65 on March 14, 2011, 01:59:07 PM

Snowbum also points out that the OEM switch is only around $10 ($10.65 at Hucky's).
For that price, I can see NO reason NOT to use OEM.  

Title: Re: oil pressure sending unit
Post by: Justin B. on March 15, 2011, 02:57:53 PM

I have bought one Borg Warner OP switch (for mid 80s BMW car) and it was almost $2 more than  the Chicago BMW price for stock unit...

Title: Re: oil pressure sending unit
Post by: wxp on March 20, 2011, 04:34:45 PM

one just assumes parts from bmw are going to be more expensive..even w/shipping usually just as much

Title: Re: oil pressure sending unit
Post by: Justin B. on March 20, 2011, 07:07:43 PM

Quote

one just assumes parts from bmw are going to be more expensive..even w/shipping usually just as much

It would have been more from the local dealer but cheaper from Chi. BMW.  The up-side was that I had it immediately...