Search found 816 matches

by Gannet
Mon Sep 24, 2012 11:43 am
Forum: Help
Topic: Green Powder in the fuel tank
Replies: 7
Views: 10649

Re: Green Powder in the fuel tank

On advice previously on this site, I used caustic soda. It is readily avaiable and works really well. It also damages paint if the solution is sufficiently strong, so not to be splashed onto the outside of the tank.
It also cleans up - just for cosmetic reasons - the bronze transom bracket.
by Gannet
Sun Sep 16, 2012 9:51 pm
Forum: Help
Topic: Propshaft End Float
Replies: 6
Views: 7178

Re: Propshaft End Float

yes, I can see from your explanation that turning over just the gearbox is the only way to tell. i will now remove the gearbox and give it a go.
Thanks for your advice.
Jeremy
by Gannet
Sun Sep 16, 2012 10:16 am
Forum: Help
Topic: Propshaft End Float
Replies: 6
Views: 7178

Re: Propshaft End Float

Thanks Charles, The smaller dia (0.75") thin shims that had previously been fitted in lieu of the thrust washer have worn the end bearing face locally. SOS John has been on hols so I haven't been able to contact him, so thanks for the details of the thrust washers. A 13 gauge (0.092) or 14 gaug...
by Gannet
Sat Sep 15, 2012 10:57 pm
Forum: Help
Topic: Propshaft End Float
Replies: 6
Views: 7178

Re: Propshaft End Float

Thanks for that advice. My SJM is 1955/6. The gears look ok, but somebody has put in shims of 0.75 dia in lieu of 1.0" which has locally worn the bearing in the end cap producing a lot of backlash. I thought that I if i was going to put in the correct dia thrust washer I might as well get the t...
by Gannet
Fri Sep 14, 2012 12:33 pm
Forum: General Topics
Topic: 40 minus Restoration
Replies: 117
Views: 100639

Re: 40 minus Restoration

Well done. I have just acquired an early Minus (SJM35). It runs and seems ok. It is not in as good as condition as yours, but apart from the throttle lever I think is reasonably correct. The tank is very dented, but I lack your skill and determination to do what you have just done. My excuse is that...
by Gannet
Fri Sep 14, 2012 8:37 am
Forum: Help
Topic: Propshaft End Float
Replies: 6
Views: 7178

Propshaft End Float

I am about to set up the gear meshing of my Forty Minus (SJM). Am I right in thinking that the end float should be 0.005" to 0.015"? Is this achieved by fitting different thickness through hardened thrust washers? Would they need to be surface ground to the required thickness? Can shims be...
by Gannet
Wed Sep 12, 2012 2:45 pm
Forum: General Topics
Topic: FV or FVP
Replies: 25
Views: 20549

Re: FV or FVP

I dont understand why the rotor looks as if it is upside down. I am relatively new to Seagulls, but I would have thought that the 'extra meat' or flange would be at the top. Because, as the water flows upwards, the flange at the bottom would give some unwanted restriction to the flow. Additionally i...
by Gannet
Wed Sep 12, 2012 9:35 am
Forum: General Topics
Topic: Nomenclature
Replies: 28
Views: 21664

Re: Nomenclature

All I originally asked was what does SJM and SJP stand for! I wish I hadn't then commented on gearbox shaft seals! An interesting debate. Our interest in Seagulls does not automatically mean that we defend every aspect of their design and manufacture, but can take a balanced view and indeed like or ...
by Gannet
Tue Sep 11, 2012 7:14 pm
Forum: General Topics
Topic: Nomenclature
Replies: 28
Views: 21664

Re: Nomenclature

I dont know enough about Seagulls to say why did they do this, and why didnt they do the other. However, I have just come in from working on the gearbox of my SJM with the question - why the devil didnt they fit dynamic shaft seals, which was proven technology by the mid thirties. Perhaps cost? Jeremy
by Gannet
Tue Sep 11, 2012 12:22 pm
Forum: General Topics
Topic: Nomenclature
Replies: 28
Views: 21664

Re: Nomenclature

Thanks Charles,

It was a fairly simple question, but inevitably the answer was not as straightforward as I had hoped. Typical, I suppose, of industrial manufacturing history.

Thanks again.

Jeremy
by Gannet
Tue Sep 11, 2012 11:49 am
Forum: General Topics
Topic: Nomenclature
Replies: 28
Views: 21664

Nomenclature

I have taken a shine to the early model 40s, and am curious about the model numbers/names and for what they stand. F obviously stands for Forty. I have read recently on this site (?), that V stands for Villiers. So FV is a Forty with a Villiers carburettor, and presumably FVP is a Forty plus with a ...
by Gannet
Wed Sep 05, 2012 3:51 pm
Forum: General Topics
Topic: FV or FVP
Replies: 25
Views: 20549

Re: FV or FVP

Whilst we are on early transom brackets, what are the small (0.175x0.200) cut outs on the ends of both legs of the brackets? Initially I thought that they were some manufacturing location point, but not at all sure.
Jeremy
by Gannet
Tue Sep 04, 2012 9:43 pm
Forum: General Topics
Topic: FV or FVP
Replies: 25
Views: 20549

Re: FV or FVP

Yes, I have three small transom brackets which have all seem to have been plated. I cannot confirm that the plating is zinc - could it have been cadmium? My early SJM, recently acquired, came with a small bracket. My measurements show that the small ones are about 1 3/4 effective opening, wheras the...
by Gannet
Thu Aug 23, 2012 5:31 pm
Forum: Help
Topic: Full throttle problem
Replies: 9
Views: 9800

Re: Full throttle problem

Rolf,
Thanks for your advice. I will bend it a bit to increase the fuel height.
Cheers,
Jeremy
by Gannet
Wed Aug 22, 2012 7:20 pm
Forum: Help
Topic: Full throttle problem
Replies: 9
Views: 9800

Re: Full throttle problem

Yes, Thanks for your advice. I have checked the two filters - visually ok. Additionally, with the float chamber bowl removed there is a good flow of fuel (tank is half full). Also checked that the bottom of the loop of the pipe twixt tank and carb is clear. I did notice that the 'Y' shaped piece tha...