Search found 3653 matches

Go to advanced search

by nevhunter
Sat Oct 12, 2019 2:59 am
Forum: Four stroke
Topic: Crank pressure relief PCV reed and crank oil seal
Replies: 22
Views: 5587

Re: Crank pressure relief PCV reed and crank oil seal

The positioning of those 2 breather outlets is designed to pick up oil but remained like that forever. I wonder how good taking it from a rocker box cap would work. I can't see why a bit from the drive side main bearing area would matter much. It just goes into the primary chaincase. and shouldn't d...
by nevhunter
Thu Oct 10, 2019 1:38 am
Forum: W/NG Period Pictures
Topic: Wng
Replies: 7
Views: 2620

Re: Wng

Only IF he has the original. Nev
by nevhunter
Thu Oct 10, 2019 1:35 am
Forum: For sale/wanted - Bikes
Topic: 1949 VB ?
Replies: 5
Views: 1579

Re: 1949 VB ?

Forks and stays make it look 50, 51 Cops used equivalent BSA 600 cc side valve plunger heel , bikes in NSW, Australia, at a similar time. Auctioned off about 8 years later. I got to ride one a Cousin of mine bought.. Like new condition. Nev
by nevhunter
Thu Oct 10, 2019 1:16 am
Forum: Ariel Talk
Topic: 1948 Iron 4G Coil Ignition
Replies: 92
Views: 22125

Re: 1948 Iron 4G Coil Ignition

Velocettes are still conventional engines but the K/S doesn't move the engine very fast. If the magneto is OK they start fine IF you have the technique of starting a single covered/learned. Never have your leg dead straight and have the foot so as to enable it to give way to a fast returning pedal, ...
by nevhunter
Wed Oct 09, 2019 12:20 am
Forum: Four stroke
Topic: Crank pressure relief PCV reed and crank oil seal
Replies: 22
Views: 5587

Re: Crank pressure relief PCV reed and crank oil seal

The way the PC valve works probably doesn't suit the situation as well as a one way valve especially with a single which has anything but a smooth action, Note how the carb slide rattles back and forth in a single. Lots of engines have had timed mechanical breathers and some have flappers. The large...
by nevhunter
Sun Oct 06, 2019 11:53 pm
Forum: Four stroke
Topic: combined clutch a/r and valve lifter control lever 1938 VH
Replies: 7
Views: 2061

Re: combined clutch a/r and valve lifter control lever 1938 VH

IT can be made to work if you get the adjustment of the "funny" hex nut that works on the lower lever, adjusted right. Interestingly the little toggle lifter lever was standardised across war models in the later stages of the war. None of them work as well as the style used on the 1930 mod...
by nevhunter
Thu Oct 03, 2019 4:24 am
Forum: Four stroke
Topic: So it begins
Replies: 63
Views: 11480

Re: So it begins

Bit worrying. Hook up a fitting /hose to a tee in the oil pressure gauge line and externally pressure it. Check all is primed. You can't operate it without some positive oil supply. I like to prime all engines I do before the engine fires up. It's a good practice. Nev
by nevhunter
Thu Oct 03, 2019 4:17 am
Forum: Ariel Talk
Topic: Tire / rim sizes 1937 > 1938
Replies: 7
Views: 2404

Re: Tire / rim sizes 1937 > 1938

It might be an error . Most makers (UK) made a" competition" Model mid 30's that usually had a 21" front tyre. Correct me if I'm wrong on that and the tread is Trials Universal pattern which was road use approved.. That's what I finally ended up fitting to my long used VCH The 4.00 re...
by nevhunter
Mon Sep 30, 2019 2:06 am
Forum: Four stroke
Topic: End float W/NG crank
Replies: 3
Views: 1229

Re: End float W/NG crank

The shock absorber effectively eliminates the end float. The outer race (small one) on the drive side is circlipped in place, and can't move. I'd stick to the .008" but I don't see it as critical. A hot engine will have more. Center the conrod in the cases. I don't like thin shims sitting aroun...
by nevhunter
Mon Sep 23, 2019 1:39 am
Forum: W/NG Technical
Topic: Flow rate from the oil tank
Replies: 8
Views: 4178

Re: Flow rate from the oil tank

Good quality fuel grade pipe won't swell. Some goes harder over time and may leak on a push fit. Replace about every 3 years to be sure to be sure. Good luck you found it. Nev

Go to advanced search