Search found 497 matches

by barryh
Sat Jun 16, 2018 6:31 am
Forum: Post 1970 Airheads
Topic: center bolt for valve covers
Replies: 7
Views: 171

Re: center bolt for valve covers

ME 109 wrote:
Sat Jun 16, 2018 12:51 am
I thought all heads had the centre stud hole drilled though?
I thought so too. That's how I check all the threads are engaged by looking down the gap to see if the end of the stud is flush. As it came from the factory they weren't flush so I double nutted the studs and turned them in a bit.
by barryh
Fri Jun 15, 2018 8:09 am
Forum: Post 1970 Airheads
Topic: center bolt for valve covers
Replies: 7
Views: 171

Re: center bolt for valve covers

There's no issue with the nut, it's the studs that are too short. Either replace the studs with longer ones or make sure the the stud fully engages all of the threads in the head and accept whatever threads are left for the nut. Steel in steel can cope with fewer threads better than steel in alloy. ...
by barryh
Sat Jun 09, 2018 11:49 am
Forum: Post 1970 Airheads
Topic: Tire to swing arm clearance
Replies: 17
Views: 505

Re: Tire to swing arm clearance

Final drive. When the longer spacer is fitted the gap between the right hand edge of the wheel/brake hub and final drive increases to approx. 3mm Thanx! Mine measures 2.79 mm. Is that acceptable? Tire doesn't rub but is close. 2.79 mm is fine. There's a lip which you can see through the 2.79 mm gap...
by barryh
Thu Jun 07, 2018 2:13 pm
Forum: Post 1970 Airheads
Topic: Tire to swing arm clearance
Replies: 17
Views: 505

Re: Tire to swing arm clearance

Final drive.

When the longer spacer is fitted the gap between the right hand edge of the wheel/brake hub and final drive increases to approx. 3mm
by barryh
Tue Jun 05, 2018 4:42 am
Forum: Post 1970 Airheads
Topic: Just bought my first airhead!
Replies: 12
Views: 539

Re: Just bought my first airhead!

Generally with a bike in this condition, its BIGGEST fault is that it hasn't been really ridden recently. That was my experience when I bought a bike that had done only 6000 miles in it's first 28 years. Things like a grabby clutch and the turkey gobble honking from the engine breather sorted thems...
by barryh
Tue Jun 05, 2018 4:33 am
Forum: Post 1970 Airheads
Topic: Tire to swing arm clearance
Replies: 17
Views: 505

Re: Tire to swing arm clearance

If BMW made those those top hat spacers available, would it still be an alignment issue? The wider spacer only adds 1.5mm so it's not a big deal. Perhaps the scope for adjustment on the swing arm bearing means that with the additional 1.5mm it's then possible to exceed the 4mm maximum and that's wh...
by barryh
Mon Jun 04, 2018 4:51 am
Forum: Post 1970 Airheads
Topic: Tire to swing arm clearance
Replies: 17
Views: 505

Re: Tire to swing arm clearance

Going back to the standard spacer means it's going to take a while for the brakes shoes to bed in again and for the splines to wear off that step but it's the right thing to do in terms of wheel alignment. BMW issued a service bulletin that said wheel offset should be checked whenever the wider spac...
by barryh
Thu Apr 19, 2018 5:10 am
Forum: Post 1970 Airheads
Topic: Heard of this product?
Replies: 3
Views: 270

Re: Heard of this product?

Yes, I use to lube the caliper pistons and it stops them seizing up.
by barryh
Tue Mar 20, 2018 4:33 am
Forum: Post 1970 Airheads
Topic: Front snowflake bearing 1982 R100
Replies: 2
Views: 287

Re: Front snowflake bearing 1982 R100

It may just need the pre-load adjusting but inspection, clean and re-grease before hand is the minimum that should be done. There is no short and quick guidance on how to do this. Take a look here: http://w6rec.com/bmw-motorcycle-wheel-bearings-1956-through-84-repair-preload-and-spun-hubs/ or here h...
by barryh
Wed Mar 07, 2018 11:20 am
Forum: Post 1970 Airheads
Topic: Frame repair.
Replies: 15
Views: 1210

Re: Frame repair.

Pinned frames were drilled through the lug and tube as they sat on a mockup jig and pins (nails) inserted into the holes. The pins would usually have 1/4" or so sitting inside the tube. A lot of older frames were pinned--like from 1980 and before. Different builders have different favorite rod. Low...