Going to see/buy a R65.. What should I check?

[Bob_Roller]

The push rod tube has a metal 'washer' on it, and this washer pushes on the push rod tube seal, it's been said that these washers are pressed onto the push rod tube, and with use, they can get pushed up the tube, so they exert less pressure on the seal, allowing the seal to leak .

Only method I've seen published, is to tap on the washer with a brass drift, to push it back down the push rod tube, I've never done it, so I don't know what amount of  effort is needed to move the washer .

[Adamastor]

Good and bad news:

Good news: I changed all fluids and oil filter. No metal flakes on magnetic plugs from gear box and on the wheel transmition.

Bad news: oil filter (original bmw brand) looked really old and had lots of little metal flakes. Guess lately this bike has been serviced on a bad mechanic...
I wonder where these have come from... maybe they could be there for years... I hate bad mechanics and/or lazy owners. At least now I know she's got good oil and with a new filter all parts should get enough/clean oil.
Maybe I'll check the oil filter soon to see if there are any more metal flakes showing... would you do that? If I open the filter box can I re-use that filter and gaskets or do I have to re-fit a new one?

Regards

Sergio

[Bob_Roller]

If you still have the oil filter, and old engine oil, cut the filter at the metal ends, unroll the filter media, and place it in a container with alcohol, mineral spirits, diesel fuel, and swish the filter around to get the metal out of the filter .

Strain the fluid through a paper towel, and then use a magnet to see if the material is iron based, or aluminum .

A test for aluminum, is to place a drop or two of battery acid on the flakes, if they are aluminum, they will boil and dissolve in the acid .

I would run the engine for a period of time, maybe 1,000 km., then remove the filter again, and take a good look at it .

[Adamastor]

My air filter just arrived... is it possible that I have a too rich situation because of a dirty/old air filter?
My center stand also arrived but I don't know where do the springs hold on to (on the bike frame).
I didn't saw any photo on the web clearing this doubt, can anyone help me out here?

Regards

Sergio

[Bob_Roller]

There should be two sheet metal parts, one on each side of the frame by the engine that are attached to the frame, with a hook on it to attach the springs .

Here's a link to the RealOEM.com site .

http://realoem.com/bmw/partgrp.do?model=03648mospid=47851&hg=46&fg=10

Reference item is 17 .

Part number : 46521238329 .

Hope it helps out .

[Adamastor]

Oh I miss that part

[Adamastor]

Hi there... I have been working on the R65 until now it's 11:30 PM here, and I have cleaned both carbs, inserted the new airfilter, new sparkplug plug wires and new speedo cable.
Couldnt go out now, so I just started the engine to see if everything was ok but was amazed by this:

-- HUGE clouds of smoke from the left mufler (there is even a small smoke/air leak from the exhaust manifold on the cilinder). The right side had some smoke but much less...

Did this happen because the bike was on the sidestand for about 4/5 days (un-used)?

Apart from the smoke all seemed ok, but I will do a test ride tomorrow morning...

[Bob_Roller]

The excessive amount of smoke after leaving the bike on the side stand is normal, these engines don't have valve guide seals, and oil gets into the cylinders .

[Adamastor]

Thanks, bob... yet another doubt:

-> I read on teh R65 manual that the intake valve clearance for the R65 is 0.005mm. I had adjusted mine to 0.01mm (because I read all airheads were 0.01mm intake, 0.02 out).
Is this true that the R65 is only 0.005mm? What difference can it make? Can it justify my over rich plug look?

Regards

[Bob_Roller]

I don't have the owners manual handy, I'm at work .

But if memory serves me correctly, the clearance for the intake is .004 in., .10 mm, exhaust is .006 in., .15 mm., as stated in the owners manual .

A lot of riders adjust the clearance a little wider .  

If you have the clearance set to tight, when the engine gets up to operating temperature, there may be no clearance, and the affected valve may not be closing all the way .

[Barry]

I think there should be a world wide ban on quoting valve clearances in metric because they make my head hurt trying to convert them to real units.

.005 mm  = .0002"  which is one too many zeros to be anywhere near.

My original riders handbook quotes inlet at .05mm or .002" but most everyone uses .004"

This could could not cause your over rich plug.

[Lucky_Lou]

The excessive amount of smoke after leaving the bike on the side stand is normal, these engines don't have valve guide seals, and oil gets into the cylinders .

A God has spoken.....learn this lesson well padawan!!
Lou skywalker

[Adamastor]

Everyday there's a new doubt so here goes a new one:

- My right spark plug has one side dark, and the other side brown/gray. What does this mean? Do I have an air leak inside cylinder? The left cylinder plug looks same color all around...

Regards,

Sergio