Thank you for your replies. Paul, Thank you for your offer of a pump. However, I have managed to replace the broken plunger plug on mine so I will see how it performs. I note your comment about: "Why should a pump wear?" Perhaps, I am worrying unnecessarily about the apparently slack fit o...

Dick and Roger, thank you for your replies. My original problem, apart from potentially worn pump bores, was a seized pump plug. The square end for a spanner/ screwdriver was destroyed. In desperation I used a stud remover (left hand thread) and some heat. Luckily that did the trick. I have ordered ...

I agree but they are out of stock!

Dick, do you still have an oil pump for sale?
I have a request in the 'Wanted' section currently.
Regards,
Dennis

Wanted: Oil pump for '56 NH.
The plungers are slack in mine and one plunger end cap won't budge and is chewed beyond repair.
Many thanks,
Dennis

Got mine from Drags when ordering other parts. Although the Halite washers are cheap the postage for a pair of washers is not
Dennis

Thanks for all the replies. It looks like Paul was on to something. I had not fitted the stud that goes through the bottom of the gearbox and the chaincase. When I did the chaincase moved a "surprising" amount inwards and no longer fouled the chain wheel (now fitted the correct way around)...

Johnny, thanks but it is not the bolts. Simon, thanks I have tried the chainwheel both ways round without success. As for the year of manufacture, my frame does have the pillar on the frame for the cross over linkage but not, as mentioned, the central petrol tank fixing. I have a swinging arm of the...

I am restoring a 1956 NH350 that required some missing parts to be purchased. During a dry build I found that the primary chaincase will not close because it fouls and locks up the chainwheel before closing. I do not know that I have the correct outer chaincase so that could be the problem - see pho...

Drags list them 6606-27. Are you looking for a different size?
Dennis