Hello Jean-Daniel, Thank you for your insight. The next time I get to a machine shop, I will have them tested for hardness. Even though they might have been...
Hi Richard, I don't have the answer :-) Let's say, if there has been a lack of oil, wear will go very fastly (with the preceeding owner, for instance)....
Hey Richar4d, may be you have changed the two pairs, so you put the "inlet" Follower into the "outlet" bushing.They may have different wear. Greetings Rolf In...
Hey Christopher, it's a good idea to study the lists for the reference numbers, this answered a lot of questions. The Heads are not the same: R25: extra...
Hello, I need some information regarding: 1. the diameter of the standard tappets and the guide. There are measurements in stemler's parts catalog, but I don't...
Hi Daniel, ... That means it's bigger than the original one (=standard). You may use such one in case of wear of the guide. So you won't have too much play, ...
I need to replace the mirror on my 1964 R27 and have a couple of questions I hope I can get cleared up. The mirror on the bike is a "TOYO" brand that does not...
Hello Anthony, More than likely, your R27 would have had an Albert mirror. I think Flanders might have imported some aftermarket mirrors. Albert mirrors are...
Hello, In regards to 2., oil is pumped to the rocker assemblies through a passage on the right side of the cylinder. You can see part of the tube near the...
Oups, folks, I apologize, as I was mistaken... Alzheimer, without any doubt... Kim's post awoke me. Thanks, Kim :-) What I wrote (see following passage) was...
Hello Gentlemen, I am adjusting the backlash on my 1963 R27 rear drive and have found a backlash of .37 millimetres. I am trying to avoid having to buy...
Folks, Thank you for all the replies I got from my inquiry. I have been trying to reply to those posts, but it seems I have problem when submitting a reply. it...
Mention of a 15 mm oil pump has me curious. I've never heard of a difference. Does it have longer gears? Is it a BMW upgrade or a later aftermarket item? Am I...
Hello, The 15 mm oil pump came late in the R27. It occupies part of the sump where the previous engine mount through stud used to fit on the earlier singles. ...
Richard, on that site there can also be articles found about the use of an Isetta (1 cylinder BMW car with similar engine as mono) oilpump. The Isetta pump is...
Hello again, I already have the deep sump, it was a prority for me. There is quite a difference in pumps judging by the parts book. I'm not good at ...
Hi, You will never have to worry about too much pressure coming from an R26 oil pump. Even two of them mated together shouldn't raise an eyebrow. The pre 1970...
Hello, What a difference a good carby makes! I'd always had problems getting my bike tuned to what i thought should be correct, and did the usual thing of...
I don't know, Allan, I'm not sure but I remember slightly that the later R 27-s had a stonger oil puming system.Did you also consider a bigger oil-reservoir?...
Hi, Some times ago, somebody asked about a special R 26 serie for Switzerland. I just found 2 pics of such a bike. It's painted in grey, which isn't the...
... Searching the Huggett forum using the words "swiss blue" will show several messages and a photo of this bike. Item 9 "Re: Wanted: R 26" is your message...
... OK for the posts on Mark's forum. I posted the Nr 9, and the tank cover is mine :-) But the pic is ugly (colour quality). The real blue is nicer. Regards...
Thanks for all the oil pump info. After thinking about what was pointed out. Being that it's pretty much an 'open ended' system. Increasing pump capacity would...
Hello Jo, I have the r25-25/3 English repair manual on CD. I can burn you a copy if you would like. Where are you located? The einzylinder zentrum is a great...
Everyone, My R-27 has suffered a catastrophic failure with con-rod coming out of the side. Everything but the clutch, flywheel, head, transmission and...
