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by nevhunter
Sat Jun 04, 2011 6:26 am
Forum: For sale/wanted - Parts
Topic: Wanted BA gearbox
Replies: 1
Views: 654

Try to get it to run with oil rather than grease. If you are running in the gears (as with sidecare work) the grease channels and doesn't get into the layshaft bearings. Some Cp boxes have the long splined mainshafts. I don't know which bikes they come from but I have some, so it's not just heresay....
by nevhunter
Sat Jun 04, 2011 5:01 am
Forum: For sale/wanted - Bikes
Topic: FOR SALE : 1930 Model F Blackie
Replies: 6
Views: 2232

Have to agree about the 1930 model G. and the others you mention. Any of the early Page designed OHV's are special. They're all good performers too. The interesting stuff ran right through to the mid-30's. such a multiplicity of designs must have hurt profitability. In the basic models parts interch...
by nevhunter
Sat Jun 04, 2011 4:49 am
Forum: Four stroke
Topic: 49 Caby
Replies: 3
Views: 1125

Presume you mean VH ,VG? . Think the VG runs a slightly smaller bore Carb. than the VH If the body is diemetal, check the wear. ( but assess whether you should use a BRASS replacement if available) before you spend much time/ money on it . Take the jet block out, (tap gently to get it out the bottom...
by nevhunter
Sat Jun 04, 2011 4:29 am
Forum: Four stroke
Topic: Valve seats
Replies: 2
Views: 1089

If the head is removed and the carbon carefully cleaned from the combustion chamber surface you will get a bit of an idea of whether the valves are "down" into the seats. To do it properly the valves must be removed from the head. Reface them and see how much metal still remains at the out...
by nevhunter
Fri Jun 03, 2011 8:05 am
Forum: Four stroke
Topic: VH OIL PUMP
Replies: 3
Views: 1201

The purpose of the ball and spring is to replace the assembly that was external in the earlier singles. These motors had an oil pressure gauge, and the ball and spring made the back pressure that the gauge measured. In the later OHV models there is no oil gauge but the back pressure provides a suppl...
by nevhunter
Fri Jun 03, 2011 3:18 am
Forum: For sale/wanted - Bikes
Topic: FOR SALE : 1930 Model F Blackie
Replies: 6
Views: 2232

Refering to the SV above....Quite a few things wrong with that. Headlight, gearbox (4-speed) tank (with panel) NO.I think a good OHV would be worth $12,000 AUD. at least, here in Australia. To the model F 1930. First year for chrome . Carb.is brass. Mine is nickelled. Mufflers could be a better shap...
by nevhunter
Wed Jun 01, 2011 11:19 am
Forum: Four stroke
Topic: 1929 Inlet Valve Size?
Replies: 1
Views: 521

Re: 1929 Inlet Valve Size?

I have an old 1930 head. Maybe they are the same. If you think that may help, I will dig it out and measure it. If the seat is down I sometimes fit a bigger valve rather than insert it. I don't open the exhausts up because they are big enough already. Nev
by nevhunter
Wed Jun 01, 2011 7:02 am
Forum: A Bad thing happened to my Ariel
Topic: Mangled sludge trap plug
Replies: 9
Views: 6257

Re: Mangled sludge trap plug

How did you manage to get it out. Nev
by nevhunter
Mon May 30, 2011 6:58 am
Forum: Two stroke
Topic: ARIEL LEADER ENGINE PROBLEM
Replies: 24
Views: 15129

If you are gettting oil past the seal(s)then the level will fall in the gearbox. The smoking exhaust I have experienced almost universally with mufflers on two strokes, that have been in service for a while and accumulate oily carbon which after a reasonable run puts out smoke when it gets hot. If t...
by nevhunter
Mon May 30, 2011 3:55 am
Forum: Four stroke
Topic: Big end bearing
Replies: 23
Views: 5546

Runout of the mainshafts will cause problems with meshing of the timing gear and will load the bearings up more than if it is true. I don't use the centres because they can be damaged and they make a bad job look good. I prefer to run the wheels in narrow "V" blocks placed near the inner e...

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