Search found 78 matches

by Donald A
Mon Sep 14, 2020 2:50 pm
Forum: Help
Topic: Checking a mk II coil
Replies: 5
Views: 922

Re: Checking a mk II coil

Still nothing on A to B or A to C
Interestingly, on the 200 scale, the B to C measurement goes from 0.3 points closed to 1.3 points open, so something is working!
D
by Donald A
Mon Sep 14, 2020 12:55 pm
Forum: Help
Topic: Checking a mk II coil
Replies: 5
Views: 922

Re: Checking a mk II coil

And I should have added .... by a layman without the knowledge or the equipment to do it professionally....
D
by Donald A
Mon Sep 14, 2020 12:53 pm
Forum: Help
Topic: Checking a mk II coil
Replies: 5
Views: 922

Re: Checking a mk II coil

I don’t know - it came from my spares box. The real question is what is the proper way of testing a mk2 coil.....?!
D
by Donald A
Sun Sep 13, 2020 8:05 pm
Forum: Help
Topic: Checking a mk II coil
Replies: 5
Views: 922

Checking a mk II coil

I attach photos of a mark 2 ignition and the supposed way of checking I think I must be missing something obvious but here goes I put a voltmeter on the 200 ohm scale (the minimum) on the bit jutting down (ht lead receptor, point A) and on fixing bolt to base plate point B Should be 4.78 and I get t...
by Donald A
Wed May 06, 2020 11:35 am
Forum: General Topics
Topic: V ring seals on prop shaft
Replies: 17
Views: 5389

Re: V ring seals on prop shaft

Thank you for that - all very good points, to which I definitely do not have the answers, and which I have to resist the temptation to chase them with speculation.....!!
Till the next time
Donald
by Donald A
Tue May 05, 2020 7:14 pm
Forum: General Topics
Topic: V ring seals on prop shaft
Replies: 17
Views: 5389

Re: V ring seals on prop shaft

I don’t have these supply lines, so I’ll stick with my last reply! But presumably that means the later boxes (such as my present 10:21 featherweight) are happy on a slightly heavier oil than sae 140, although I imagine the engine gets to the point where it develops less power at the prop because it ...
by Donald A
Tue May 05, 2020 5:34 pm
Forum: General Topics
Topic: V ring seals on prop shaft
Replies: 17
Views: 5389

Re: V ring seals on prop shaft

I am cancelling my previous two entries, quite simply because buying any heavier oil I have discovered is going to cost about £17 for 1 litre -having already bought sae 140 1 litre, so it’s all getting a bit out of control and counter productive Thank you again for explaining it - I shall try the ri...
by Donald A
Tue May 05, 2020 11:01 am
Forum: General Topics
Topic: V ring seals on prop shaft
Replies: 17
Views: 5389

Re: V ring seals on prop shaft

I suppose I should have asked that question more intelligently - which of the heavier oils stay on the teeth of the gears whilst in use, and therefore still lubricate them?
And does it matter what GL number they have? GL4 seems to be the only suitable grade around commercially these days
D
by Donald A
Tue May 05, 2020 9:37 am
Forum: General Topics
Topic: V ring seals on prop shaft
Replies: 17
Views: 5389

Re: V ring seals on prop shaft

Thanks for that - very helpful - I’ll give it a try and see how it goes
I didn’t realise one could get 220,350 and 480 - which of these still pour? And who sells them - I haven’t seen them on web sites
D
by Donald A
Mon May 04, 2020 4:43 pm
Forum: General Topics
Topic: V ring seals on prop shaft
Replies: 17
Views: 5389

Re: V ring seals on prop shaft

No it’s instead of the existing British seagull rubber seal/wash ie I would take off the brass collar and put the new seal behind it
The new ring seal is smaller in its outer diameter than the BS one - does this matter?
D
by Donald A
Mon May 04, 2020 3:12 pm
Forum: General Topics
Topic: V ring seals on prop shaft
Replies: 17
Views: 5389

Re: V ring seals on prop shaft

The original post was by Gannet on Sep 19 2018 which is on sheet/page 5 of these threads
I hope I have not misread it!!
Donald
by Donald A
Mon May 04, 2020 2:37 pm
Forum: General Topics
Topic: V ring seals on prop shaft
Replies: 17
Views: 5389

Re: V ring seals on prop shaft

As I understand the previous thread from the guy who suggested it, it replaces the Sheridan rubber seal washer altogether - and supposedly acts more as a seal rather than merely a grit barrier It’s on there in the photo just to demonstrate its shape - the photo here looks a bit different from the ph...
by Donald A
Sun May 03, 2020 10:43 pm
Forum: General Topics
Topic: V ring seals on prop shaft
Replies: 17
Views: 5389

Re: V ring seals on prop shaft

Try again
At last - seems to have worked
Obtained from wych bearings, as per thread some time ago
D
by Donald A
Sun May 03, 2020 10:24 pm
Forum: General Topics
Topic: V ring seals on prop shaft
Replies: 17
Views: 5389

Re: V ring seals on prop shaft

For some weird reason the photo comes back with unrecognised file - or similar!
D
by Donald A
Sun May 03, 2020 10:02 pm
Forum: General Topics
Topic: V ring seals on prop shaft
Replies: 17
Views: 5389

Re: V ring seals on prop shaft

It's been separated from it's engine - but it is a 10/21 featherweight box without seals, in good condition. I have taken what you said on a previous thread ie tried to get the prop shaft so that it has no play up and down and almost none ( I suspect it's about 10 thou) fore and aft - and a new what...