Search found 1208 matches

by Jeff K
Sun Jan 26, 2020 8:23 pm
Forum: Tech
Topic: B40 in OIF frame issues
Replies: 34
Views: 1286
Flag: United States of America

Re: B40 in OIF frame issues

You need to get the 'mechanic stethoscope' out then, the biggest screw driver you have and with your ear on the handle end touch the other end to the various parts of the engine. You should be able to pin down where the noise is coming from more accurately. LOL-- I have a couple of various lengths ...
by Jeff K
Fri Jan 24, 2020 10:27 pm
Forum: Tech
Topic: B44 Primary Breather Pipe
Replies: 8
Views: 423
Flag: United States of America

Re: B44 Primary Breather Pipe

Tevor has a very good point about the oil, be sure that it is rated for use with a clutch. Last thing you want is for the oil to cause the clutch to start slipping.
Jeff
by Jeff K
Fri Jan 24, 2020 10:24 pm
Forum: Tech
Topic: B44 Primary Breather Pipe
Replies: 8
Views: 423
Flag: United States of America

Re: B44 Primary Breather Pipe

I am not sure if you would need to use a spacer. Most of the ball bearings that I have seen just use a press in rubber flat shield that would not effect the width. Just pop it out and clean off any bearing grease. Now if we were talking non shielded wheel bearing, then you would need to use a spacer...
by Jeff K
Fri Jan 24, 2020 3:57 pm
Forum: Tech
Topic: B40/44 Regina primary chain issues...
Replies: 4
Views: 137
Flag: United States of America

Re: B40/44 Regina primary chain issues...

A couple of years back when we did the B40 project, we had the same problem but with a couple of different brands of chain. Used was loose, New one was very tight, New generic was tight tight but at least it would fit. ED V. told me at the time that the early BSA tolerance could vary a bit and then ...
by Jeff K
Tue Jan 21, 2020 2:23 am
Forum: Tech
Topic: B44 Electrics Question
Replies: 12
Views: 389
Flag: United States of America

Re: B44 Electrics Question

Some Electronic ignitions require resistor spark plugs and resistor Plug wires, Does yours?
Jeff
by Jeff K
Mon Jan 20, 2020 4:18 am
Forum: Tech
Topic: B44 Electrics Question
Replies: 12
Views: 389
Flag: United States of America

Re: B44 Electrics Question

Did they also use a AC coil? It has been a long time, But I do remember that they could be a pain to get timed and running good.
Jeff
by Jeff K
Sun Jan 19, 2020 3:49 pm
Forum: Tech
Topic: B44 Electrics Question
Replies: 12
Views: 389
Flag: United States of America

Re: B44 Electrics Question

It seems my old memory is thinking that if you have the Energy Transfer Ignition, Then you also have a special Auto Advance unit. They used it to help ensure that the timing would line up with the max magnet/ coil output and had very limited advance. I would replace everything with: (1) AAU, stator/...
by Jeff K
Tue Jan 14, 2020 12:18 am
Forum: Tech
Topic: B44 Wiring/ Earth
Replies: 16
Views: 513
Flag: United States of America

Re: B44 Wiring/ Earth

When Crimping, I like to use copper coat anti-seize and then heat shrink tubing. When soldering, I also use heat shrink. I dip the end of the wire in the copper coat before crimping and I find it tends to last longer, it seems to stop the corrosion.
Jeff
by Jeff K
Sat Jan 11, 2020 3:30 am
Forum: Tech
Topic: Monobloc vs Concentric cable free length.
Replies: 0
Views: 229
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Monobloc vs Concentric cable free length.

I know that the Amal Monobloc has less cable free length then a Concentric. Does anyone remember what it is ? 1/2", 5/8 less ?
Jeff
by Jeff K
Fri Jan 10, 2020 2:33 am
Forum: Tech
Topic: B25/T25 Factory big Bore and Hop up kits.
Replies: 5
Views: 283
Flag: United States of America

Re: B25/T25 Factory big Bore and Hop up kits.

Yes, that is the article. The dealer reprint is in black and white and stapled together, but it is the same story. If anyone has one of the $42.50 DR Hop Kits laying around, I am willing to pay $50.00 for it. :laugh :laugh
Jeff
by Jeff K
Thu Jan 09, 2020 4:08 pm
Forum: Tech
Topic: B25/T25 Factory big Bore and Hop up kits.
Replies: 5
Views: 283
Flag: United States of America

B25/T25 Factory big Bore and Hop up kits.

I was sorting through some old stuff last week and a found a dealer reprint of a April 1972 Cycle Guide article. The Dealers/ Factory used to do that with a favorable article, they would have them reprinted and give them out at the dealerships. Interesting, the factory offered a Big Bore kit for the...
by Jeff K
Wed Jan 08, 2020 4:49 am
Forum: Tech
Topic: B44 gearbox 1969
Replies: 8
Views: 227
Flag: United States of America

Re: B44 gearbox 1969

They improved the cam plate in 1969 for better engagement, so try to get one of those. Kommando is right about them being the same and interchanging.
Jeff
by Jeff K
Wed Jan 01, 2020 2:45 am
Forum: Tech
Topic: B40 in OIF frame issues
Replies: 34
Views: 1286
Flag: United States of America

Re: B40 in OIF frame issues

I always have a large tin of the Copper and the high temp Nickel close by when working on bikes. :thumb :thumb Beat My grandfather was a retired machinist who past away way back in 1973. He help me rebuild one of my first car engines, a 1968 VW Beetle. He taught me a lot back then, I still remember...
by Jeff K
Sun Dec 29, 2019 11:39 pm
Forum: Tech
Topic: B40 in OIF frame issues
Replies: 34
Views: 1286
Flag: United States of America

Re: B40 in OIF frame issues

Oil is coming out of the joint between the head and exhaust downpipe, which is a concern. I had a similar issue with my B44 when I first put it together, I found oil coming out from the exhaust manifold where the pipe fits in, also plenty of blue smoke and some leaks from the head gasket area. - I ...
by Jeff K
Sun Dec 29, 2019 2:34 pm
Forum: Tech
Topic: B40 in OIF frame issues
Replies: 34
Views: 1286
Flag: United States of America

Re: B40 in OIF frame issues

I had both BSA copper head and full gaskets sets for the B40 and the B44. At the time I still had nearly 30 gaskets sets for these bikes. The gaskets in the B40's that I worked on were thicker, every gasket that I miked that was for either the B44 or for B40/b44 was thinner. This included some BSA O...
by Jeff K
Sat Dec 28, 2019 11:03 pm
Forum: Tech
Topic: B40 in OIF frame issues
Replies: 34
Views: 1286
Flag: United States of America

Re: B40 in OIF frame issues

I have covered this before in here. The B44 and the B40 head gaskets are not the same. run a B44 gasket and you will have leaks. "I quote the " Rupert Ratio's BSA Unit single Engine Maul" page 149. "The copper head gasket should be made of 18 gauge sheet. Pattern head gaskets are sometimes found to ...
by Jeff K
Tue Dec 24, 2019 2:29 pm
Forum: Tech
Topic: B40 in OIF frame issues
Replies: 34
Views: 1286
Flag: United States of America

Re: B40 in OIF frame issues

Or eliminate the heavy air box and just go with a 1960's style round paper air filter that came on the BSA's / Triumphs with the chrome cover. They also came with center or offset mounting.
Jeff
by Jeff K
Tue Dec 24, 2019 2:26 pm
Forum: Tech
Topic: B40 in OIF frame issues
Replies: 34
Views: 1286
Flag: United States of America

Re: B40 in OIF frame issues

Take a trip to your local auto parts store. Go to the back room where they have all of the radiator hoses hanging and find one that has the diameter and bend that you need, cut to fit and you have and new supply.
Jeff
by Jeff K
Tue Dec 17, 2019 2:42 am
Forum: Parts for sale
Topic: Scammer ?
Replies: 2
Views: 636
Flag: United States of America

Re: Scammer ?

At least one of those photos is off the US Ebay, the one with the girls and shelves of Japanese carburetor rebuild kits. Many sites like this are just a link to Ebay and they get a commission for sending you there. This one is NOT! it requires you to sign in. I do not like the looks of it.
Jeff
by Jeff K
Mon Dec 16, 2019 11:36 pm
Forum: Tech
Topic: B44 - 2nd Gear Mystery
Replies: 6
Views: 426
Flag: United States of America

Re: B44 - 2nd Gear Mystery

I think that BSA also changed the shifting cam to help out in 1969. I fitted one to a 1961 B40 and it did help.
Jeff
by Jeff K
Tue Dec 10, 2019 3:21 pm
Forum: Tech
Topic: Lozenge silencer
Replies: 7
Views: 430
Flag: United States of America

Re: Lozenge silencer

There is one on Ebay right now for a B25, it is in Australia.
https://www.ebay.com/itm/254344063705
It has rust/holes on the back side and the inlet will be 1 3/8" instead of 1 1/2". But if you do not have one then it could be repaired or used as a pattern.
Jeff
by Jeff K
Fri Dec 06, 2019 3:47 am
Forum: Tech
Topic: B50 7" Headlamp
Replies: 10
Views: 551
Flag: United States of America

Re: B50 7" Headlamp

Even the small MCH66 headlights came in different versions. The B25/T25T/B50/SS/H/T used MCH66/60262A with a rotary switch in the middle and the three indicator lights were like a "V" around it. The TR5T used the MCH66/00-1253 with a toggle switch with the indicator lights in a row under it. Picture...
by Jeff K
Thu Dec 05, 2019 4:06 pm
Forum: Tech
Topic: B50 7" Headlamp
Replies: 10
Views: 551
Flag: United States of America

Re: B50 7" Headlamp

If you do try to fit the smaller head light, I believe mounting wire brackets are different. I seem to recall that they had three different sets of them.
Jeff
by Jeff K
Thu Nov 21, 2019 3:27 pm
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

Barry
Thank you for the offer to contact them. I have a "extra" T25T frame that that I plan of cutting up for brackets etc. I can salvage what I need from it for now.
Jeff
by Jeff K
Wed Nov 20, 2019 5:48 am
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

I have looked at their web site and I can not seem to find the bracket.
Jeff
by Jeff K
Wed Nov 20, 2019 4:36 am
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

Notice that on the TR5T frame the tab for the side stand is broken off at the hole and on the T25T frame the side stand itself is broken off. Seems to be a pattern of problems here. :lol: At one time I used to see where some one was selling a repair section for where the side stand breaks off. I hav...
by Jeff K
Wed Nov 20, 2019 4:27 am
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

Yes, I plan on using these tabs. But unlike most who do this and grind down the center stand to fit the frame tabs. I plan on grinding the tabs to fit the center stand. You can see the shape different if you look at the T25T/B50 frame. And for all of the BSA single owners following these, the good n...
by Jeff K
Wed Nov 20, 2019 12:12 am
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

These two photos are of the T25T/B50 frame. You can see the factory center stand lugs and you can see where the OIF center stand is a simple bolt on. You will have to modify the lower arm to clear the side stand.
Jeff
by Jeff K
Wed Nov 20, 2019 12:10 am
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

More TR5T photos. One show the factory lugs on the bottom. The next one shows where people are drilling out the 3/8" hole to 1/2" and mounting the OIF center stands. it also show why you need to cut the center stand and weld a 2 1/2" section in the middle to widen it.
Jeff
by Jeff K
Mon Nov 18, 2019 3:26 am
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

I should add that for all of those who are thinking that dropping a T100 motor into a B50/T25T will be easy. It is doable, but they are several differences between the two, so give your self plenty of time. The B25 is taller then the T100, but it looks like the factory mounted the T100 motor higher ...
by Jeff K
Mon Nov 18, 2019 3:08 am
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

The "lugs' on the TR5T do not appear to be for a center stand, I think that they were used to hold the bike on the assembly line. The 1973 TR5T parts book's drawing of the frame looks to be a "cut and paste" frame drawing and shows the unlisted center stand in it. The 1974 TR5T parts book corrected ...
by Jeff K
Sun Nov 17, 2019 3:09 am
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

And finally the reason I thought the TR5T swing arm was mounted lower. B50SS is on the left, TR5T in the Middle and the T25T is on the right. The B50SS rear frame loop is lower then the other two. The TR5T seems to have a slight bend upwards in the middle. The T25T matches the TR5T 's height, but sh...
by Jeff K
Sun Nov 17, 2019 3:05 am
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

TR5T vs B50SS/T25T rear engine areas
by Jeff K
Sun Nov 17, 2019 3:02 am
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

Rear fender front mount is very different, The TR5T is beefed up here.
by Jeff K
Sun Nov 17, 2019 2:57 am
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

Here are a few photos, Front down tube on the TR5T is 17", on the B50SS it is 20". Different front and bottom engine mount lugs.
by Jeff K
Sat Nov 16, 2019 7:06 pm
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

Interesting, I was just looking at the 1974 TR5T parts book and unlike the 1973 Parts book, it no longer shows a center stand.
Jeff
by Jeff K
Sat Nov 16, 2019 3:31 pm
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

Re: B50/T25T and TR5T frame difference - center stand

Tom The front oil bearing down tube is shorter, the bottom frame tubes are closer together and the back mount/fender mount is different. I will post some photos this evening. Grand Daughter is coming over and we will be working on her math for up coming test today. :smile: B40 still leaks. That migh...
by Jeff K
Sat Nov 16, 2019 3:46 am
Forum: Tech
Topic: B50/T25T and TR5T frame difference - center stand
Replies: 20
Views: 775
Flag: United States of America

B50/T25T and TR5T frame difference - center stand

I was just checking three bare frames, a 1973 TR5T, a 1971 T25T and a B50SS. All of them are bare and flipped upside down resting on the back loop and the front of the frames on the floor. Measurements with a tape measure to compare. The B50 and the T25T are the same, The TR5T has a few differences....
by Jeff K
Sun Nov 10, 2019 3:41 am
Forum: Tech
Topic: Electric Start
Replies: 631
Views: 125311
Flag: United States of America

Re: Electric Start

Starts well, if your ignition is voltage sensitive then you can add a voltage buck step up so the ignition does not see the voltage drop as the starter turns. Boyer MK3's suffer lower voltage and over advance on Commando MK3's causing backfires and destroying the sprag unit. This is the reason that...
by Jeff K
Sun Nov 03, 2019 3:42 am
Forum: Tech
Topic: 1000-Series 2/4-stroke Concentrics
Replies: 102
Views: 12917
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Re: 1000-Series 2/4-stroke Concentrics

It might have been different here in Michigan. Norton 500T came with a BTH magneto and yet a dealer told me decades ago the some hated the BTH and wanted the lucas, so the bike left with what the customer wanted. Mostly it was the dealer who "added" items and charged more for them. I have seen more ...