Search found 1389 matches

by Jeff K
Sun Feb 21, 2021 1:13 am
Forum: Parts & Bikes wanted
Topic: TR5T Engine
Replies: 17
Views: 1814

Re: TR5T Engine

If that muffler is stock, then that is a 1973. The air boxes and mufflers are different between the 1973 and the 1974. The cylinder studs are tapered at the top to take the sleeve nuts. The rocker boxes and Cylinder head are bored out for this. This is only needed if you want to be able to removed t...
by Jeff K
Sat Feb 20, 2021 2:32 pm
Forum: Tech
Topic: Best Ball Bearing Brands?
Replies: 8
Views: 227

Re: Best Ball Bearing Brands?

I would concur with Mark's point we know what has a hard life and what doesn't. It's silly to spend a lot of money if not required BSA were also aware of this and would not spend money on a higher spec bearing unless it was necessary for the job No need for "Racing/Severe Duty" spec bearings. At 66...
by Jeff K
Fri Feb 19, 2021 8:04 pm
Forum: Tech
Topic: Best Ball Bearing Brands?
Replies: 8
Views: 227

Re: Best Ball Bearing Brands?

Thank you for the replies! I live in Mid Michigan USA, so there is still a lot of manufacturing around. And that means Bearing houses and suppliers. I have had good results with German, English, Japanese and USA made bearings in the past. The problem is there are a lot of Knock offs out there. China...
by Jeff K
Fri Feb 19, 2021 4:57 pm
Forum: Tech
Topic: Manual advance retard
Replies: 8
Views: 193

Re: Manual advance retard

It would allow you to control the amount of advance vs the engine rpms controlling it. Who knows in some situations that might have its advantages. Sounds like it was used in a very specific use, Trials riding. It would allow for some experimenting that you could not do with a AAU. Look what we have...
by Jeff K
Fri Feb 19, 2021 4:03 pm
Forum: Tech
Topic: Best Ball Bearing Brands?
Replies: 8
Views: 227

Best Ball Bearing Brands?

There are a lot of Ball Bearing Manufactures out there. NSK , FAG, Nachi, Federal Mogul, NHD Delco, National, Koyo etc to name a few. What are the better brands and what are the ones to stay away from? I am starting to see off brands pop up that I have never seen before at very cheap prices. I alway...
by Jeff K
Sat Feb 13, 2021 3:12 pm
Forum: Tech
Topic: First Start Up ?'s
Replies: 9
Views: 362

Re: First Start Up ?'s

I also like to use a old hand pump oil can to fill oil lines and any oil filters before a 1st start. example - unhook the rocker feed line , insert nozzle and pump some oil in there, let the air bubble out, repeat until full. I used to use a mix half STP and half motor oil for assembly and prelube. ...
by Jeff K
Thu Feb 11, 2021 7:11 pm
Forum: Tech
Topic: First Start Up ?'s
Replies: 9
Views: 362

Re: First Start Up ?'s

I still like to remove a Tappet cover and to pour/pump some oil in there before a 1st start up. Hand pump oil can works great at oiling up the insides before you start, and it runs down and gives the pump something to suck up.
Jeff
by Jeff K
Tue Feb 09, 2021 9:40 pm
Forum: Tech
Topic: Running the big cap
Replies: 6
Views: 307

Re: Running the big cap

We did a B40 project that was a bugger to kick start. Push it a couple of feet it was running, kick and your leg would give out before it would start. It turned out that a "new" aftermarket ignition Condenser was bad! it was leaking, so it also was wasting needed voltage at start. Replace it and the...
by Jeff K
Tue Feb 09, 2021 9:34 pm
Forum: Tech
Topic: Running the big cap
Replies: 6
Views: 307

Re: Running the big cap

Thanks guys. It seems weird that BSA would put the cap in the "magic box" where it is hard to disconnect. Further, the implication in the unit single manual is that you can start it with a dead battery on the cap with everything connected. Oh well, live and learn! Ed from NJ Best way to start with ...
by Jeff K
Mon Feb 08, 2021 11:27 pm
Forum: Tech
Topic: Running the big cap
Replies: 6
Views: 307

Re: Running the big cap

Here is a handy chart, remember that temperature also effects voltage. Your battery is close to only keeping 1/2 of full charge. So bike is trying to charge it all of the time. Norton Commando used to come with a Big Blue cap. They also used to tell you that if the battery was bad, just unhook the b...
by Jeff K
Sat Feb 06, 2021 3:39 am
Forum: Tech
Topic: Maximum bore of a 441
Replies: 11
Views: 526

Re: Maximum bore of a 441

Ed at E&V still offers >060" over piston for the B44.

https://shop.shopevengineering.com/EV-B ... ogId=-2087

Jeff
by Jeff K
Fri Feb 05, 2021 8:27 pm
Forum: Tech
Topic: woodruff keys
Replies: 13
Views: 939

Re: woodruff keys

It has been my experience that Keys of the same size, round bottom or flat can interchange. The reason is that the keyway is cut with a special round cutter that looks like a wheel with teeth at the end of a shaft, a "Keyway" cutter. It can only cut a round bottom hole, unless you lengthen the cut a...
by Jeff K
Tue Jan 19, 2021 3:20 pm
Forum: Tech
Topic: kickstart cotter pin
Replies: 9
Views: 600

Re: kickstart cotter pin

I just back off the nut one turn. Put a 1/2" or bigger brass drift/rod on the end and smack it with a hammer. Sometimes if it is corroded, I then back off the nut one more turn again and repeat. This has worked for 50 years for me. :thumb The backing off the nut one turn and leaving it on the thread...
by Jeff K
Sun Jan 17, 2021 3:22 am
Forum: Tech
Topic: New Build Oil Types
Replies: 9
Views: 608

Re: New Build Oil Types

DO NOT use automobile oils! Due to the catalytic convertors, they have greatly reduce amounts of ZDDP and this will cause rapid wear on the rocker arms and any high pressure contact point areas. There are many good oils made for motorcycles out there. I like the ones rated for V twins because they d...
by Jeff K
Sat Jan 16, 2021 1:31 pm
Forum: Tech
Topic: Stripped thread - tank rack
Replies: 4
Views: 362

Re: Stripped thread - tank rack

by Jeff K
Fri Jan 15, 2021 2:15 pm
Forum: Tech
Topic: B25 Negative crankshaft end float
Replies: 9
Views: 625

Re: B25 Negative crankshaft end float

If you still have the old Bearing. Measure it and compare it to the new bearing.
Jeff
by Jeff K
Mon Jan 04, 2021 7:14 pm
Forum: Tech
Topic: Unable to remove valve collets
Replies: 10
Views: 798

Re: Unable to remove valve collets

They used to run the B44 aluminum cylinder and piston. You had to shorten up the cylinder and rebalance the crank. The B40 SS head is the same as the B44 round head. Same casting number too. The b44 just had the stud holes bored out for the bigger cylinder studs. The B44 square head can also be made...
by Jeff K
Sun Jan 03, 2021 10:17 pm
Forum: Tech
Topic: b40 lubrication system modification ?
Replies: 15
Views: 938

Re: b40 lubrication system modification ?

I used a B25 oil pipe junction on a B40 that I built. It was in a later B25 frame and I wanted to use the later style rocker feed from the junction block since I was using a later oil tank and that did not have the "T" for the rocker feed. It was a simple matter unsolder, plug the line and then to d...
by Jeff K
Sun Jan 03, 2021 10:03 pm
Forum: Tech
Topic: Unable to remove valve collets
Replies: 10
Views: 798

Re: Unable to remove valve collets

Does your engine still have the cast iron cylinder on it?
Jeff
by Jeff K
Sun Jan 03, 2021 5:00 pm
Forum: Tech
Topic: b40 lubrication system modification ?
Replies: 15
Views: 938

Re: b40 lubrication system modification ?

I am not sure about the later model B40. But be careful with the oil lines. The earlier model has the input and output lines opposite from the B25 engines.
Jeff
by Jeff K
Sun Jan 03, 2021 1:56 am
Forum: Tech
Topic: auto decompressor/valve lifter ???
Replies: 25
Views: 1639

Re: auto decompressor/valve lifter ???

Mr Mike wrote: Sat Jan 02, 2021 11:33 pm Why do we try to put modern automatic things on 60/70ties British bikes that have all the advanced technology of the 1940ties?
Mr Mike
LOL-- Because we are also 60/70ties and need all the help that we can get. :thumb
Jeff
by Jeff K
Sat Jan 02, 2021 3:54 pm
Forum: Tech
Topic: Unable to remove valve collets
Replies: 10
Views: 798

Re: Unable to remove valve collets

I remember that a long time ago they used to sell valve-lash caps. Back when we used to regrind the valves, you would also have to regrind the top of the valve to get it flat and true again. You would then fit a new cap on the end, most of the time these caps were hardened. The end of the valve stem...
by Jeff K
Mon Dec 14, 2020 2:42 am
Forum: Tech
Topic: B25/B50 center Stand
Replies: 1
Views: 455

Re: B25/B50 center Stand

B25/B50 center stand mounting lugs compared to the TR5T.
Jeff
by Jeff K
Mon Dec 14, 2020 2:34 am
Forum: Tech
Topic: B25/B50 center Stand
Replies: 1
Views: 455

B25/B50 center Stand

I rolled out my 1971 B25 and grabbed a OIF twin center stand from the pile. It bolted right on and fit. The side lever is too long, but I can cut it off and leave a 2" stub and it will work, I normally step on the foot of a center stand and pull back to set the bike up. The rear tire is up high enou...
by Jeff K
Sun Dec 13, 2020 7:37 pm
Forum: Project bikes
Topic: B50/44 Hybrid
Replies: 28
Views: 2026

Re: B50/44 Hybrid

Hi Jeff, Thanks for your responses. I tried to straighten the side stand today it wasn't entirely successful but at least far better than before. I'm cleaning the frame internals with gasoline and a control cable through the filler hole. It's the fourth filling with gasoline and it's just as dirty ...
by Jeff K
Sat Dec 12, 2020 11:56 pm
Forum: Project bikes
Topic: B50/44 Hybrid
Replies: 28
Views: 2026

Re: B50/44 Hybrid

Try mineral spirits and a few BB's, shake hard and then drain. Repeat until the Mineral Spirits come out clean. Blow dry with compressed air. And count how many BBs you put in and keep shaking until you get that same number out. :mrgreen:
Jeff
by Jeff K
Sat Dec 12, 2020 11:53 pm
Forum: Project bikes
Topic: B50/44 Hybrid
Replies: 28
Views: 2026

Re: B50/44 Hybrid

Yes, they were completely straight from the factory. Rarely found that way after someone has been kick starting the bike while it is on the side stand.
Here are two photos pf a new stand stand.
Jeff
by Jeff K
Fri Dec 11, 2020 8:44 pm
Forum: Tech
Topic: Seat brackets size
Replies: 14
Views: 1225

Re: Seat brackets size

"Metric! Don't you know we are leaving the EU for the sole reason that we don't like their Micky Mouse system of measurements!" :thumb :thumb :thumb :thumb Few people realize how many different Metric systems there are out there. So much for being a Standard. The Japanese had their own, the JIS up u...
by Jeff K
Fri Dec 11, 2020 8:36 pm
Forum: Tech
Topic: Seat brackets size
Replies: 14
Views: 1225

Re: Seat brackets size

The B25/B50/TR5T alloy and steel Standard tanks, I think take the same front mount. The 3 gallon UK & Europe only tank I think has a different front mount.
Jeff
by Jeff K
Fri Dec 11, 2020 7:39 pm
Forum: Tech
Topic: Seat brackets size
Replies: 14
Views: 1225

Re: Seat brackets size

The photo's are from a spare B50 frame, the seat mounts are the same as the TR5T.
Jeff
by Jeff K
Fri Dec 11, 2020 7:37 pm
Forum: Tech
Topic: Seat brackets size
Replies: 14
Views: 1225

Re: Seat brackets size

And a couple in Metric
by Jeff K
Fri Dec 11, 2020 7:35 pm
Forum: Tech
Topic: Seat brackets size
Replies: 14
Views: 1225

Re: Seat brackets size

In Inch
by Jeff K
Fri Dec 04, 2020 4:38 am
Forum: News
Topic: UK will start charging 30% tax on classic Cars.
Replies: 2
Views: 468

UK will start charging 30% tax on classic Cars.

I just read this today. The UK will start charging 20% vat and 10% import tax on imported classic cars. Will this effect Classic motorcycle also? I also found out that starting on January 1, ebay will be collecting VAT on items being purchased and imported up to 135 pounds in value. ---- Ouch! :uhu ...
by Jeff K
Thu Dec 03, 2020 4:52 am
Forum: Tech
Topic: New Amal Premier Carb/Tickler Issue
Replies: 3
Views: 698

Re: New Amal Premier Carb/Tickler Issue

Install the insulator, the Carburetor will be happier. :lol:
Jeff
by Jeff K
Wed Nov 11, 2020 1:58 pm
Forum: Tech
Topic: Electrex Ignition Question
Replies: 7
Views: 1208

Re: Electrex Ignition Question

Electronic Ignitions tend to be at full advance and then they "retard" the timing at low RPM. So you set them at TDC and they adjust for the advance. The full advance makings are are normally use for strobing the timing to check on the advance. An example would be the Power Arc units, you set the pi...
by Jeff K
Fri Oct 30, 2020 1:45 pm
Forum: Tech
Topic: Rebuild Compression
Replies: 26
Views: 2567

Re: Rebuild Compression

Propane torch is all that I have every needed. You will know when it is done right because the gasket will be very pliable compared to stiff before you started.
Jeff
by Jeff K
Thu Oct 29, 2020 8:57 pm
Forum: Tech
Topic: Rebuild Compression
Replies: 26
Views: 2567

Re: Rebuild Compression

I thought the same thing at the time. Then I had a Don Hawley, old Triumph mechanic from the long gone Saginaw Cycle sales tell me that he had the same problem years ago. 500cc Twin cylinder no pushrods, so no air in, no air out. Same deal, a customer tried to rebuild it himself. So yes it does comp...
by Jeff K
Thu Oct 29, 2020 11:43 am
Forum: Tech
Topic: Rebuild Compression
Replies: 26
Views: 2567

Re: Rebuild Compression

A little soap and water around the head gasket will tell you if it is leaking. No bubbles is a good thing.
:thumb
Jeff
by Jeff K
Thu Oct 29, 2020 1:43 am
Forum: Tech
Topic: Rebuild Compression
Replies: 26
Views: 2567

Re: Rebuild Compression

Compression check- write it down. Pull the plug squirt a little oil and redo compression check. If it jumps up, then it is the rings. If it does not then it is the valves. Using WD40 as a piston ring assembly lube will speed up the break in. I also like to pull the plugs and kick it until my leg tel...
by Jeff K
Fri Oct 23, 2020 2:30 am
Forum: Parts for sale
Topic: Ebay -OEM BSA B50T exhaust muffler-silencer B50ss gold star B25
Replies: 0
Views: 1101

Ebay -OEM BSA B50T exhaust muffler-silencer B50ss gold star B25

OEM BSA B50T exhaust muffler-silencer B50ss gold star B25. Saw this today, looks nice.
https://www.ebay.com/itm/164462119503

Jeff