The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: jgp1854 on January 22, 2013, 08:25:18 AM

Title: 82 R65LS oil pressure switch replacement
Post by: jgp1854 on January 22, 2013, 08:25:18 AM

Need to replace the switch, does it require a special size socket to remove it from the engine block?  Are there any pitfalls I need to worry about, or is just straight forward, unscrew and re-install?

jgp

Title: Re: 82 R65LS oil pressure switch replacement
Post by: Bob_Roller on January 22, 2013, 08:48:57 AM

It's a straight forward job .

I think it's a 19 mm, been a while since I replaced one, it's a common size, no special tools required .

Probably wouldn't be a bad idea the replace the aluminum crush washer / seal while you're at it .

Title: Re: 82 R65LS oil pressure switch replacement
Post by: montmil on January 22, 2013, 09:06:20 AM

Should your local BMW dealer be out of stock, Euro Motoelectrics has them.

http://www.euromotoelectrics.com/SearchResults.asp?Search=oil+pressure+switch

Some chatter about using a VW sender but the talk also mentions a possible variance in the pressure activation between BMW v VW. Plus, there is a concern regarding the threads. Advise staying OEM on this inexpensive part.

Title: Re: 82 R65LS oil pressure switch replacement
Post by: georgesgiralt on January 22, 2013, 12:35:54 PM

Only think to know is to lean the bike on it's right cylinder in order to contain the remaining oil in the bike instead of your shoes...
Watch the way you return the bike to it's stand in order to save the spine of your back...

Title: Re: 82 R65LS oil pressure switch replacement
Post by: jgp1854 on January 22, 2013, 07:06:47 PM

any torque specs, or just snugged up.

jgp

Title: Re: 82 R65LS oil pressure switch replacement
Post by: Justin B. on January 22, 2013, 09:03:02 PM

IIRC, the VW sender is a "pipe-thread" where ours uses a straight thread.  I've used one from a mid 80's BMW car (local parts house in an emergency) but it was actually about $4 more than euromotoelectrics!

Title: Re: 82 R65LS oil pressure switch replacement
Post by: jgp1854 on January 23, 2013, 08:56:52 AM

George
Are you serious about leaning the bike over to the right cylinder?
jgp

Title: Re: 82 R65LS oil pressure switch replacement
Post by: steven m on January 23, 2013, 11:16:29 AM

I didn't lean my bike over and completed the job in about five minutes.  Of course, the bike was cold as it should be when working on it.  You will want to clean the block, wires, and connector before removing the old sensor, as when the sensor needs replacement it is probably leaking.  Get out your toothbrush!  Do not overtighten.
If only the pushrod tube gaskets were this easy...

Title: Re: 82 R65LS oil pressure switch replacement
Post by: georgesgiralt on January 23, 2013, 12:44:39 PM

Yes, I'm serious.
The ports in the crankcase are full of oil. If you remove the manometer without leaning the bike on the right hand cylinder, this oil will go down.
And you'll have to clean after it.
My grand mother told me it's better not to make a mess than to clean up after...
Cost nothing and makes access easier. Why not ?

Title: Re: 82 R65LS oil pressure switch replacement
Post by: Bob_Roller on January 23, 2013, 01:08:40 PM

While you're replacing the switch, look at the wire for the oil pressure switch, not uncommon to have the insulation crack and come off .

Heat shrink on the wire will work, without replacing the wire .

Take a look at the transmission neutral switch also, the wires here, do the same thing .