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Re: Model 30, '56 - engine studs
Posted: Tue Mar 12, 2024 1:27 pm
by GBM
Brake rear pedal:
solved, finally I found the way the spring enter in the pedal mechanism.
The hole for the spring in the pedal, was covered from new paint
Re: Model 30, '56 - engine studs
Posted: Wed Mar 13, 2024 11:23 am
by GBM
Dave, Spriddler,
may I ask your help to identify the bolt that fix the magneto to crankcase ?
(the red line)
immagine_2024-03-13_122043557.png
/Giovanni
Re: Model 30, '56 - engine studs
Posted: Wed Mar 13, 2024 11:51 am
by dave16mct
The bolt is 1 1/16" X 5/16" x 26, part number 000365.
Dave
Re: Model 30, '56 - engine studs
Posted: Wed Mar 13, 2024 11:58 am
by Duncan
Hi Giovanni, do you have a parts list its on page 14.
1956 M30 Magneto Bolt.png
Re: Model 30, '56 - engine studs
Posted: Thu Mar 14, 2024 5:47 pm
by GBM
Duncan, Dave,
great support!
I was searching in AMOC parts 014779, lock washer, but no result.
Do you have an idea on kind of lock washer is this part?
On AMOC the same for 140074, plain washer
/Giovanni
Re: Model 30, '56 - engine studs
Posted: Thu Mar 14, 2024 6:21 pm
by dave16mct
Originally a star washer was used, but any 5/16" lock washer will do.
Dave
Re: Model 30, '56 - engine studs
Posted: Fri Mar 15, 2024 6:24 am
by GBM
Dave,
looking the part list seems no protection from oil release at magneto retaining bolt (000365).
I am wrong?
/Giovanni
Re: Model 30, '56 - engine studs
Posted: Fri Mar 15, 2024 10:37 am
by dave16mct
Nothing leaks from there, but have fun with the dynamo seal!
Dave
Re: Model 30, '56 - engine studs
Posted: Sat Mar 16, 2024 6:34 am
by GBM
Dave,
you scare me on the dynamo... any suggestion to do it once?
/Giovanni
Re: Model 30, '56 - engine studs
Posted: Sat Mar 16, 2024 7:34 am
by Groily
viewtopic.php?p=251641&hilit=dynamo+oil ... in#p251641
This and other similar previous posts might help Giovanni.
It is a known weakness.
Somebody else said recently on here that they had used the similar gasket for a Triumph, which is a bit thinner than the AMC seal, and it seemed to work.
Personally, I am resigned to having to revisit these seals every so often - especially if the bikes are used hard. You will see a light mist of oil on the front of the timing side crankcase on many twins after a good run; in some cases a proper trickle of oil. But some people's perseverance pays off and theirs remain oil tight. I am at the 'light mist' stage on my 500, and - praise be, I'm oil tight for now on my 650.
In this area, it is important that the dynamo oil seal is in good condition and that the steel collar it sits on, on the shaft, is also good. Otherwise, oil gets into the dynamo, and then gets out again quite quickly, often making a nasty mess or even stopping it charging. (Sometimes making it look as if the crankcase joint is leaking just under the dynamo, which is the thing you really do NOT want!)