Search found 4963 matches

by nevhunter
Thu Apr 11, 2024 7:00 am
Forum: Four stroke
Topic: Noisy cam pinions
Replies: 17
Views: 878

Re: Noisy cam pinions

Vids with sound always seem to magnify whirring and tapping noises in Machinery. Nev
by nevhunter
Wed Apr 10, 2024 9:02 am
Forum: Member's Bikes
Topic: Vch replica
Replies: 28
Views: 3981

Re: Vch replica

LEE have you got the raised handlebars with the Crossbrace fitted? Nev
by nevhunter
Wed Apr 10, 2024 8:59 am
Forum: Four stroke
Topic: Aluminium heads on singles
Replies: 7
Views: 329

Re: Aluminium heads on singles

DAVID, I tend to heat the alloy up to high temp and that reduces stresses and the likelihood of cracks. Most welders don't do that at the temps I do.IF you're welding in the Gut's of a head, THINK BIG'. Chop a lot away and come in from the easiest side making sure every metal lay down in the puddle ...
by nevhunter
Wed Apr 10, 2024 5:07 am
Forum: Four stroke
Topic: MK1 timing side bush
Replies: 2
Views: 108

Re: MK1 timing side bush

Without trying to stir the Possum, Back a while when Poured bearings were common we would NEVER hone white metal . The grit embeds into the softer Babbit metal, and wears the harder shaft. Better to align bore the bearing to size with a fine pointed HS cutting tool in a boring bar.. The boring bar c...
by nevhunter
Mon Apr 08, 2024 3:32 am
Forum: Four stroke
Topic: Noisy cam pinions
Replies: 17
Views: 878

Re: Noisy cam pinions

With no backlash they WILL WHINE but as the motor warms the lash will increase as the alloy case expands more. There's no way to adjust them other than make a new set. Doesn't have to be both Gears Try to have NO run out on the crankshaft pinion shaft. IF the gears come from a different maker the Te...
by nevhunter
Sat Apr 06, 2024 8:56 am
Forum: Main Chat Forum
Topic: 1927 model e carby adjustments
Replies: 4
Views: 210

Re: 1927 model e carby adjustments

They are a 2 Lever carb basically and CAN work well as long as any parts are made as original as you can get them to be. AJS ran multi jet without a long needle ( BINKS) during the same years. The body may have been a bit worn (another variable). IF you get them RIGHT you can move the 2 levers close...
by nevhunter
Fri Apr 05, 2024 1:24 am
Forum: Four stroke
Topic: 350 bigend torque figure ?
Replies: 6
Views: 228

Re: 350 bigend torque figure ?

Do the DRIVE side first. You can hold that wheel in a Vice and it's doing the most work I don't use Torque figures. You go by feel and the words "Pretty tight". JAPs have shallow tapers angles and 26 tpi threads and are easy(ER) to crack the wheels. Corser threads need more torque. Hard to...
by nevhunter
Thu Apr 04, 2024 8:19 am
Forum: Ariel Talk
Topic: '39 Sq4 exhaust conundrum
Replies: 14
Views: 756

Re: '39 Sq4 exhaust conundrum

The cast steel ones are better than aluminium. The top LH one looks correct. Nev
by nevhunter
Wed Apr 03, 2024 10:31 pm
Forum: Main Chat Forum
Topic: New member - looking for spares.
Replies: 15
Views: 641

Re: New member - looking for spares.

Looks mostly period BSA . 250 3 sp gearbox .Rather small brakes. . Quite light in weight. Nev
by nevhunter
Wed Apr 03, 2024 6:44 am
Forum: Four stroke
Topic: Noisy cam pinions
Replies: 17
Views: 878

Re: Noisy cam pinions

Very strong valve springs Load and wear the teeth quicker and any.Flywheel main shaft run out on the timing side doesn't help much either. The inner camshaft bush wears on each side. At 3 and 9 oclock. Not up and down .Any play there should be eliminated to keep the gear mesh depth constant. Then ho...