Pushrod seals

[Julio A.]

My push rod seals are "misting" oil again. I'm looking for the tool of some sort to hammer them snugly in place again. Does anybody have the dimensions of this tool? I'm going to have a piece of pipe machined.

Is it true that there the newer models have the trust ring fixed in place?
If these models are not applicable with the "tap in method", how do you fix leaks in this sector? my pushrod seals are new. I don't think opening it up to replace them will do any good anymore.And yes, I did remember to install the o-rings.

[Barry]

Is this the tool you are looking for?

I'm not sure about when the fixed ring came in. I suspect ours maybe fixed but I hope not as my own seals mist a little too.

[Julio A.]

Yeah! that's the one. Thanks a bunch!

[Rob Valdez 79 R65]

With the ring fastened to the pushrod tube, you won't be able to move the ring, but you may be able to move the entire tube from it's place in the head, slightly.  They are pressed in place.

[Barry]

Quote from Snowbum  ...it was in '81 (a questionable date) that the pushrod tube collars became non-moveable...so that was no longer the method of tightening the pushrod tube rubbers for elimination of leakage.

[Julio A.]

That's what worries me, my R65 was a 81' model manufactured during the 80's winter.

If the "hammer" method isn't the proper method of tightening, what is?
do I have to tighten the whole cylinders?

[Barry]

If the "hammer" method isn't the proper method of tightening, what is?
do I have to tighten the whole cylinders?  

As Rob already said if you use the tool on a fixed ring type it will move the entire tube out of the head and into the block. A very small amount of movement might be worth a try.

[Julio A.]

Just had the chance to have a piece of pipe machined.
I have already used them on my pushrod seal and apparently, my R65 had the rings that are not soldered on. It moved quite a bit; around 3mm's. The oil spray on idle disappeared. I'll try to ride it around this weekend, i'll see how it fairs when the engine gets up to higher revs.

[Barry]

my R65 had the rings that are not soldered on.

Thats good news.

I'll have to make one of those tools and give mine a tap.

[Ed Miller]

Julio, what is the month/year of your R65's build?  The VIN can tell us, if you don't know.  Mine is 11/80 and my p-rod tubes mist a bit as well.  Of course it's so covered in road slime (my bike is water cooled this time of year) that it's hard to see where the oil ends and the mud begins.  

[Julio A.]

Haha, the pipe I made the tool from was free, I found it lying around the garage. It just took 5 minutes for two guys to cut bits out of it.
They didn't charge me for labor. Just asked me to buy their lunch.

According to realoem.com, The R65's VIN Tells me that it was created also in 11/80 and was destined for the European market. Strange, since every BMW motorbikes or any vehicle in particular in the Philippines should be from the US.

Meaning this Motorcycle is expressly exported for someone from the other side of the globe. Weird, especially in the sorry state I first saw the bike.

Does this mean my R65 was a 80' model or an 81' model? Since it was created at the end of 1980, my dad is firmly insisting that it is a 1981 model.

[Barry]

Does this mean my R65 was a 80' model or an 81' model?

Yes it's an 81 model and could not have been an 80 model year with that seat style.

[Ed Miller]

Then I should rig up one of those tools and try it on my bike.  But I would have to wash it to see if it made any difference.  No good will come of this.

[Julio A.]

Does this mean my R65 was a 80' model or an 81' model?

Yes it's an 81 model and could not have been an 80 model year with that seat style.

Funny thing to mention the seat. The seat originally installed on my R65 was all torn up when my dad first bought it. It was the smooth one with no ridges or anything. The current seat was from a bike wrecker bought by my cousins from Australia.

Sorry this is going OT.  

[Barry]

An 81 original seat cover would have been smooth but the most obvious thing that differentiates an 80 from an 81 bike (among a few other things)  is the design of the tail section. Even from the small pic in your avatar I can see yours is the 81 design.

Unless of course an 81 seat has been fitted to an 80 bike. Not sure if that's possible.

Other details that would cofirm an 81 model would be electronic ignition instead of points, dome top carbs instead of flat tops, flat air filter instead of round and choke lever on the bars instead of on the air filter housing.