1965 A65 Lightning oil manifold rubber seals query?

[Bess]

Hi Dave,
             Do you mean a tacho drive to fit the oil pump?

https://draganfly.co.uk/shop/76455/tachometer-drive-pin/#68-0586

Best wishes...

[geraldhattrick75]

Wow Bess, you raised a bunch of questions for me there....... (thanks by the way...)

Firstly, and because I had the speedo cable plugged into this oil pump drive, I assumed it was the speedo drive... (you've now proved that assumption to be wrong as I have found what I'm looking for; https://www.ebay.co.uk/itm/263583509007 'tacho drive' )
(cables need to be reassigned to correct instruments...... Dohhh!)

Secondly Bess, I checked up on various photographs and figured speedometer on the left, tachometer on the right.... Is that correct?

The piccies show the broken tang (or whatever the proper term might be...)

Thanks very much for your guidance (as ever),

Dave.

[geraldhattrick75]

I contacted Dave at Brit Bikes and he confirmed that it was the correct one for my bike.....


So I bought it....


Thanks again for your help Bess.

Dave.

[Bess]

Hi Dave,
             Pleased to have helped, you are correct when you say speedo on the LHS. Those tangs are normally broken when a screwdriver is used to rotate the pumps. I would suggest, when you have the pump out, test it with the broken drive and better still replace it with new cast iron body:

https://www.classicbikepartscheshire.com/engine-transmission-c37/oil-gauges-pumps-pipes-pressure-release-c55/hepolite-oil-pump-for-bsa-a7-a10-a50-a65-cnc-manufactured-made-in-uk-p3222/s3277?cid=GBP&gclid=Cj0KCQjw4eaJBhDMARIsANhrQABrf_HrIchLqi8yGHbqJv-WmesiEkz94o3Zz1K4nH8sH6D6Lp-npzwaAuUEEALw_wcB

or an SRM replacement.

Best wishes...

[geraldhattrick75]

Thanks again Bess.
Unfortunately I don't have sufficient mazooma to run to that pump.

Mind, this pump drive seems to rotate smoothly enough and the two pump gears look clean and operate smoothly so I'll bear with it.

Thanks again,
Dave.

[geraldhattrick75]

An update:
Still not quite there but I've now got the oil pipes and fittings in place, and what a maul that's been...

Fifteen pipe clips to hold, what is essentially an oil tank inlet and outlet pipe.....

I fitted an anti wet sumping valve on the engine inlet, with all the necessary pipe 'size' adapters .

And the return pipe went via the 'spin off' filter via more pipe 'size' adapters.

I've now got the tacho drive (Brit Bikes (ebay)) and will build the pump back up and mount it (New gasket) before re-fitting the timing cover (and all its internal accoutrements) (Also a new gasket)

I've now got around 8 manifold 'O' rings, but they all seem too thin to be capable of squishing down sufficiently to form a proper seal, so I found a couple in my 'O' ring stash and, after introducing one to my heat gun and then submerging it in oil for a couple of weeks, I've used two of them instead (2.5 mm thick instead of 2mm)

No leaks at the moment....... But that may be more to do with having no more oil in the tank than to my plumbing skills.


Incidentally, one of the lower timing cover threads was protruding from the case which might, or might not, have caused the perpetual leak... (although it might have unscrewed as I took the case off...)


Anyway, I've sort of stopped sulking and will be back to work on the bike, in between painting the new conservatory walls, and fitting some floor boards......