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Messages - chaz

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1
Twins / Re: wassel carb on a65
« on: 23 January, 2024, 22:05:51 »
it really annoys me when I read bad reports from suppliers on classic forum like this.
I have been dealing with Wassells for years , and yes there are a few problems but whats libelous is a question for solicitors...
Even in the railway business Im in , the odd part gets through. But like the repro business , who else is going to make the parts we need.
Our small part of the business puts out £8 million a year, The Chinese cant make them as good or as cheap as we can which is why we supply to them.

If you think the parts are not good enough, find someone else who wants to tool up and make the small batches required.
My local nut and bolt manufacturer only dealt in Stainless steel, not liked by those wanting chrome parts . They are now closed.

BTW, both Wassell concentrics I had on my Triumph caused no problems at all, the originals suffered bad from corrosion from ethanol, the Amal supplied by the factory had to be remade , in India, as it was machined wrong.

2
The Star and Garter / Re: Another bit off BSA but maybe of interest
« on: 22 January, 2024, 15:52:09 »
Mike
have you tried Cox and Turner?
https://www.coxandturner.co.uk/engine-machining/

3
Singles / Re: Still no oil returning with new hepolite oil pump
« on: 19 January, 2024, 18:31:50 »
firstly, gasket... presumably you have checked that all holes match and not causing an obstruction?

I use a old oil can with the lever and squirt oil in both tubes exiting the crank case. Turning the crank in the correct direction should show oil being pushed out of one, this will be the return pipe. Took me ages once when I had the pipes crossed, then re read the manual and it said "note pipes are crossed" .

If this method does not show oil flow in or out then make sure the pump is working!! Remove pump and fill all holes with oil, turning the shaft should see oil going in or out.

not had a problem with the ones Ive fitted but did buy a new carb from Amal once and it was blocked with swarf from machining. Being a machinist I get it in the neck from above if they find any on my parts;;

finally , presume the bike is fitted with the ball and spring in the correct position , spring into case and ball into body.

4
Twins / Re: A65 rebuild
« on: 17 January, 2024, 20:31:27 »
down south below the M4 , Melksham home (former) of Avon Tyres,

5
Twins / Re: A65 rebuild
« on: 16 January, 2024, 20:01:46 »
never use anything other than Castrol XXL ,well covered on assembly at each stage, con rod to crank then tipped up on end and filled the T/s hole a couple of times then oil bushes before the parts fitted and again all the time. I dont care if it falls out the bottom before sump plate goes on. It gets more.

Is ther anyone you know that can use a micrometer? a local engineering company? if you were close I could do it.

6
The Star and Garter / Re: Another bit off BSA but maybe of interest
« on: 13 January, 2024, 17:57:11 »
Mike

dont know if of any help, but when I started out restoring bikes, I was told to hunt out cast iron down pipes.
these could be used to make liners , but, in those days there were plenty of small machine shops and back yard machinists.

as for the question, I dont think it would make much difference. its acceptable to rebore +0.040" or even 0.060", but then, this was to limit the overboring and making a thinner wall thickness of the liner. +0.060 is close to a 1/16 so I wouldnt worry as 1/16 oversize engines still run at anywhere to 10krevs

7
Twins / Re: A65 rebuild
« on: 12 January, 2024, 14:20:45 »
just goes to show, you cant rely on what was in before.
Ive just reassembled (dry fit) my A50 crank and cases.Ive flexi honed the new t/s bush and now happy that the crank turns by hand, the camshaft turns but is tighter, but does turn with gear on..
first attempt the crank wouldnt turn and no end float.
pulled the bearing off and checked the shim and shim cup, originally a 0.020" cup and two 0.010" shims, removed the two shims and crank turns .
I assumed after the crank had been ground they might have kissed the side face  and shims needed, but as it happened, the t/s bush wasnt in as far as could have been and needed the shims removed. now 0.0025" end float which may close a bit on torquing the case bolts up.

8
Twins / Re: A65 gearbox oil
« on: 29 December, 2023, 22:17:26 »
I tend to stick with Castrol as it is formulated to the old recipe, most of the Castrol classic range was reformulated to match the old as requested by classic car clubs . At their request and with the thought of future requests by classic car and bike groups , the range was expanded. This ensured that the correct ingredients were included for our old phosphor bronze bushes and bearings rather than modern Japanese style roller bearings.
Presumably Morris oils and others have followed on by now.   

9
Twins / Re: A65 gearbox oil
« on: 29 December, 2023, 17:25:58 »
welcome to the forum,
you have asked a question now await a dozen different answers.

the difference between A50 and A65 will not make any difference to the oils used.
I would say EP90 or SAE50 they are around the same. Personally its Castrol.

10
Twins / Re: 1969 A50 rebuild questions...crankshaft.
« on: 23 December, 2023, 22:20:25 »
to answer my own questions...
good job I took pictures

11
Twins / 1969 A50 rebuild questions...crankshaft.
« on: 21 December, 2023, 17:21:02 »
my cases were away for a long time and Ive worked on many bikes in the time. the '69 A50 being newer than the older ones Ive done.

q1.. the bimetal timing bush, should the inner flange be up against the inner cast face? I didnt remove or refit the new one... oil flows around ok.

q2..  the bi metal thrust washer on the timing side, presumably bronze side to crank face. Should it fit in the recess above the bush? This ties in with q1 as it will not stay in place . Ive measure the crank and inner faces for end float and there isnt any difference.

12
Twins / Re: Cylinder linings
« on: 21 December, 2023, 17:02:33 »
I had cause to visit Westwoods for my son, they have a very large inventory and the shelves were well stocked, they were very knowledgeable

13
Twins / Re: A50 big end nuts
« on: 21 December, 2023, 16:58:49 »
cranks already built up with new nuts and bolts.
Ive never had problems in the past on the T'Bolts or Sq4's Ive rebuilt using other make parts.

14
Twins / Re: Head Gasket
« on: 18 December, 2023, 12:49:12 »
I would anneal the old one, when flat it shouldnt leak. The composite ones can sometimes blow.
There is a caveat, that depends where its bought from, some German made ones are better quality. but if thickness is too thin, I wouldnt use.

15
Twins / Re: Motorcycle lifts again
« on: 16 December, 2023, 21:35:44 »
from a professional point of view, I wouldnt use an Abba lift unless maybe a small capacity low value bike. Its purely down to the lack of any other support. my ramps go higher and have tie down points. All you need is a customer or a second of madness and a heavy classic or high value superbike could end up on the floor.

Ive got two Abba's and only used one once. Having had a faired 600 fall over in the yard (uneven surface and wind) and then had to pay for the fairing repair Ive learnt my lesson. That combined with every different make/model needs its own dedicated fittings make it unpractical for me. For a single bike owner, its your choice.

BTW , if you wonder, Ive 3 ramps, (2 hydraulic and one air), 2 abba's, one single side rear, 1 hook rear , 3 slide rears, 3 forked fronts at the unit and a hydraulic ramp, and 2 slide rears and a fork front at home. Ive also got one of those Sealey centre stand movers, thin steel and 4 small caster wheels, supposedly you can put the bike on the centre stand and manoeuvre it around, but if you have uneven floors or carpet not easy to move. 

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