Tools to pull bearings on my BMW R25/3
I'm trying to find someone with the special tools to pull and replace the main bearings on this '57 R25/3. I'd gladly buy/rent them, just like to do things myself and this one has me temporarily stopped on the project.
Any help/hints gladly accepted.
Brian
Any help/hints gladly accepted.
Brian
Views: 0
Replies to This Discussion
-
Permalink Reply by Brian Downing on -
Ihave heard that the rear main seal can give out that turkey gobble sound too. I just did that job on my R75 and have tools if you need to do that.
A slide hammer is the tool I've heard used for the breather.
I'd be glad to return the favor if you need any help.
Brian
Scott said:That's great news Brian, good to hear it worked as planned. :o)
Speaking of pullers: I tried pulling the cranckcase breather from my toaster yesterday but didn't have a proper tool so my efforts brought no joy... although I did manage to suspend the bike from the rafters so 'no joy but great fun'; it seems I'll have to beg, borrow or fabricate a puller of my own.
I have the reed type upgrade in hand, however the old phenolic pancake flapper appeared to be in good shape. Maybe too much blowby is the root cause of the turkey-gobble noises, will need to do another leak-down test.
Even so, the reed type's superior efficiency may minimize oil escaping through the vent and consequently deserves another go.
-
Permalink Reply by Brian Downing on
-
I had another project go right as well. I've had my buddies girlfriends Honda 400 Automatic for about a year, it sat for a couple of years and of course the carbs were gummed up. I've torn them down twice already and first one cylinder would run then the other but no both at the same time!
Today was do or die and I took them back down again and found a speck of rust jamming one float needle and a rotted O ring in each inlet track.
Cleaned out the dirt and used some RTV lightly smeared on the face of the inlet stub and it ran like a champ.
Even managed to get the advance mechanism of the R25 apart wihout breaking anything and I was convinced it was a solid block of rust.
A good day!
Brian
-
Permalink Reply by Scott on -
Brian Downing said:
Hi Brian, sorry I haven't gotten back to you earlier, I'm out of town and have limited computer access.
It could well be the rear main seal. So far I'm not accumulating oil on the shelf under the transmission, nothing beyond the ordinary anyway.
Anyway, I have the reed breather on the shelf and want to install it for the fun of it. An earlier project liberated a deeper oil sump and oil pick-up extension which I'm also tempted to install. However I'm not sure all the threaded holes for the pan bolts are in good condition and the thought of installing helicoils there with the engine in the bike is damping my enthusiasm for that somewhat.
I'll be back in San Diego Wednesday, visiting folks here in Toronto through Easter, hope to ride or wrench soon, will be in touch when I get back.
Scott
-
Permalink Reply by Brian Downing on
-
I've got a set of metric taps if you want to chase the threads. They don't need any torque at all on those bolts just a little over "finger" tight.
What part of Toronto are you in? My wife has tons of cousins all over the Hamilton and Toronto area and we lived in St Catherines for a short time back in the 70's.
See you when you get back.
Brian
Scott said:Brian Downing said:
Hi Brian, sorry I haven't gotten back to you earlier, I'm out of town and have limited computer access.
It could well be the rear main seal. So far I'm not accumulating oil on the shelf under the transmission, nothing beyond the ordinary anyway.
Anyway, I have the reed breather on the shelf and want to install it for the fun of it. An earlier project liberated a deeper oil sump and oil pick-up extension which I'm also tempted to install. However I'm not sure all the threaded holes for the pan bolts are in good condition and the thought of installing helicoils there with the engine in the bike is damping my enthusiasm for that somewhat.
I'll be back in San Diego Wednesday, visiting folks here in Toronto through Easter, hope to ride or wrench soon, will be in touch when I get back.
Scott
-
Permalink Reply by Scott on
-
Brian Downing said:
What part of Toronto are you in? My wife has tons of cousins all over the Hamilton and Toronto area and we lived in St Catherines for a short time back in the 70's.
We were in St. Catherines briefly today while heading back to Toronto from Niagara, stopped in Grimsby for lunch.
My girlfriend has an aunt and two siblings in different parts of Toronto, I have a distant cousin currently living in Brampton.
Yeah the pan bolts don't take much to tighten sufficiently. I apply less than the recommended amount and tighten further only if it leaks, same with the finned header nuts.
The engine currently in the /5 was previously used in a sidecar tug, swb /5, I moved it over to the toaster after its original engine suffered an exhaust valve separation. Before installing the former tug engine I wiped it down and gave it a good looking, not much beyond that in preparation. As I recollect, two pan bolts felt as though they didn't want to hold torque. I didn't push it, this was planned to be quite temporary, however the engine has been running very well and shows good compression so mostly I just enjoy it. Probably better that I get the original engine back up to snuff and move that back into the appropriate frame.
I have the swb /5 in boxes and also the M63 Ural chair it was pulling. The frame was badly bent which is why I tore it down, found a good used frame cheap and had that plus the subframe checked out by The Frame Man up in Sacramento a while back. With another good engine I could get that back on the road.
gotta go,
Scott
-
Permalink Reply by Brian Downing on
-
Sounds like you have as many bikes in boxes as I do!!
One of Barbara's cousins lived in Brampton, I think they moved to Kitchener about 10 years ago.
Brian
Scott said:Brian Downing said:
What part of Toronto are you in? My wife has tons of cousins all over the Hamilton and Toronto area and we lived in St Catherines for a short time back in the 70's.
We were in St. Catherines briefly today while heading back to Toronto from Niagara, stopped in Grimsby for lunch.
My girlfriend has an aunt and two siblings in different parts of Toronto, I have a distant cousin currently living in Brampton.
Yeah the pan bolts don't take much to tighten sufficiently. I apply less than the recommended amount and tighten further only if it leaks, same with the finned header nuts.
The engine currently in the /5 was previously used in a sidecar tug, swb /5, I moved it over to the toaster after its original engine suffered an exhaust valve separation. Before installing the former tug engine I wiped it down and gave it a good looking, not much beyond that in preparation. As I recollect, two pan bolts felt as though they didn't want to hold torque. I didn't push it, this was planned to be quite temporary, however the engine has been running very well and shows good compression so mostly I just enjoy it. Probably better that I get the original engine back up to snuff and move that back into the appropriate frame.
I have the swb /5 in boxes and also the M63 Ural chair it was pulling. The frame was badly bent which is why I tore it down, found a good used frame cheap and had that plus the subframe checked out by The Frame Man up in Sacramento a while back. With another good engine I could get that back on the road.
gotta go,
Scott
-
Permalink Reply by Scott on
-
Brian Downing said:Sounds like you have as many bikes in boxes as I do!!
Certainly we both have a wealth of projects, a happy problem :o)
We wanted to explore St. Catherines but didn't have a proper map and I didn't manage to stumble upon the old downtown area quickly enough to satisfy the ladies. Grimsby's expressway signage was modestly superior in that regard.
Yesterday was my second visit to the Falls... still showing remnants of the hill of ice in front of the American falls... we went back for another look after dinner and were glad we did, being quite wonderful with the night lighting.
ok, the gf wants me off, we fly back tomorrow afternoon,
Gears!
-
Permalink Reply by Scott on
-
"Sounds like you have as many bikes in boxes as I do!!"
Brian, I realize the better answer to this is: while I have a handful of bikes and a few actually run, I don't expect to match the number of bikes you've had over the years.
Back home and settled in again, I found some time today to tinker with the toaster and thought to mess with the carb balance.
While reving the engine and eyeing my cheap manometer I noticed plumes of oil-smoke coming from the right exhaust.
I'm thinking rings. I may do better to invest time/money in a fresh engine rather than mess about with the breather.
How 'bout you? Any new news concerning the DSK?
-
Permalink Reply by Brian Downing on
-
Well DSK is "hovering".
I can put the main bearings in if I find a piece of pipe with an I/D over 2 1/2" and an O/D less than 3 1/2" then cut an inch off it. Shouldn't be too hard, I just need to cruise some junk yards! Then I have to make a decision on the cams and followers. They are both pitted from lack of oil changes back in prehistoric times. I can shop around for them to be resurfaced or stump up $600 or so for new BMW ones. I need to get resurfacing prices first.
And Chrome. I need to throw some parts in for rechrome, especially the push rod tube lower pieces, without those I can't even think about re-assembling the engine.
The list goes on.
But then I got fired up about the R75/5 I've been "Working" on for years and now the engine is in it's starting to call.
Yet again I have to get the 100K service and new timing belts done on the Wing before we go on vacation so that will probably be this weekend's task.
Finally the Kawasaki Z1 I bought in pieces needs to get on e-bay so I can clear the garage and get the base gaskets and push rod tube seals replaced on the 90S.
I really need to retire so I can get on with the finer things in life!!!
So welcome home, I have some handy dandy but illegal in CA balance gages for carbs if you want to try them. As for smoke, if it's sat for a long time I wouldn't fret too much until it's run for a while, it may be a stuck ring, could even be valve guides. A compression check might be the way to go before buying a new engine. I happen to have a compression tester too!
Brian
Scott said:"Sounds like you have as many bikes in boxes as I do!!"
Brian, I realize the better answer to this is: while I have a handful of bikes and a few actually run, I don't expect to match the number of bikes you've had over the years.
Back home and settled in again, I found some time today to tinker with the toaster and thought to mess with the carb balance.
While reving the engine and eyeing my cheap manometer I noticed plumes of oil-smoke coming from the right exhaust.
I'm thinking rings. I may do better to invest time/money in a fresh engine rather than mess about with the breather.
How 'bout you? Any new news concerning the DSK?
-
Permalink Reply by Scott on
-
Assuming retirement to open up time for more appealing tasks sounds like an A-1 option.
I'm sampling that myself today, planning to stay in the garage and yard as much as possible.
I was talking to a co-worker Friday (R90/6 Chris) about the toaster's smoking right exhaust and he reminded me about the breather outlet at the right induction pipe... which made complete sense. I commute with the /5 and generally keep it on the centerstand.
BMW has changed the breather cap and hose slightly with the cap's port now vertical and the hose inlet gaining a gooseneck to accomodate the change. Surprisingly, the cap costs less that $5, the hose under $10... I should have the parts around Wednesday. The new configuration would appear to allow better return of oil back into the cranckcase.
So that plus the new reed valve on my shelf and the deeper oil sump and pick-up assembly in my spares may resolve the issue. Probably I'll shop for a heli-coil kit for those pan bolts.
You are vacationing soon? Gone long?
And did you say your /5 has the engine back in the frame?
How much more needs doing?
-
Permalink Reply by Brian Downing on
-
We're riding the Wing up north of San Francisco to do more of the PCH, we're determined to ride it from TJ to Vancouver BC we'll ride up to the Oregon State line and back down to LA, we've got a night on the Queen Mary booked on the way back and I want to see the Planes of Fame in Chino. Should be a fun couple of weeks.
I got the timing belts and front forks done on saturday then ended up going to a cookout sunday and getting hammered in home brewed beer, so I didn't get the rear end sorted. Maybe next weekend?
The R75 needs wiring, cylinders and heads installing, rear end installing and tires. Oh yes and I need a headlight lens and glass. It's coming along.
Brian
Scott said:Assuming retirement to open up time for more appealing tasks sounds like an A-1 option.
I'm sampling that myself today, planning to stay in the garage and yard as much as possible.
I was talking to a co-worker Friday (R90/6 Chris) about the toaster's smoking right exhaust and he reminded me about the breather outlet at the right induction pipe... which made complete sense. I commute with the /5 and generally keep it on the centerstand.
BMW has changed the breather cap and hose slightly with the cap's port now vertical and the hose inlet gaining a gooseneck to accomodate the change. Surprisingly, the cap costs less that $5, the hose under $10... I should have the parts around Wednesday. The new configuration would appear to allow better return of oil back into the cranckcase.
So that plus the new reed valve on my shelf and the deeper oil sump and pick-up assembly in my spares may resolve the issue. Probably I'll shop for a heli-coil kit for those pan bolts.
You are vacationing soon? Gone long?
And did you say your /5 has the engine back in the frame?
How much more needs doing?
- ‹ Previous
- 1
- 2
- Next ›
© 2012 Created by Jesse Fox.
