Search found 119 matches

by Ray O'Donohue
Thu Oct 22, 2015 3:59 am
Forum: Carburettor & Fuel System Shop
Topic: Carb Options an Opinions
Replies: 5
Views: 5202

Re: Carb Options an Opinions

If the float needle and seat are both metal,you might try lapping the two together with a bit of valve lapping compound. I remember a guy doing that once-don't know how it turned out.
by Ray O'Donohue
Wed Oct 21, 2015 10:23 am
Forum: Carburettor & Fuel System Shop
Topic: Carb Options an Opinions
Replies: 5
Views: 5202

Re: Carb Options an Opinions

I see that a complete set is available directly from Amal in England,specifically for the Ducati GT750 ,part # PACK129 . I couldn't get the price.
by Ray O'Donohue
Wed Oct 21, 2015 4:07 am
Forum: Carburettor & Fuel System Shop
Topic: Carb Options an Opinions
Replies: 5
Views: 5202

Re: Carb Options an Opinions

Another thought: why so much trouble with the Amals re "warping"? Too much tightening of the mounts,somehow? We used to buy complete replacement Amals because they simply wore out,for almost nothing.Given the hassle involved with a new brand of carbs,maybe sticking with Amals would be your best bet?...
by Ray O'Donohue
Tue Oct 20, 2015 4:09 am
Forum: Carburettor & Fuel System Shop
Topic: Carb Options an Opinions
Replies: 5
Views: 5202

Re: Carb Options an Opinions

You are going to get a lot of replies to this one! Yes,Amal carbs wear out,etc.Your replacement choices are endless. If you can find a good set of Delllortos from a GT750 or 860,with all the odds and ends,that could bolt right on,you would be very happy with them.You could also go into the unknown a...
by Ray O'Donohue
Wed Sep 23, 2015 4:19 am
Forum: Wheel, Brake & Tyre Shop
Topic: Disc rear end
Replies: 14
Views: 5437

Re: Disc rear end

How about: the brake arm/spline/index is one tooth off? I seem to remember some sort of incident from my mechanic days where something like this happened....?
by Ray O'Donohue
Mon Sep 21, 2015 3:25 am
Forum: Wheel, Brake & Tyre Shop
Topic: Disc rear end
Replies: 14
Views: 5437

Re: Disc rear end

No,I think you are right! You ought to be able to easily lock it up in that situation. But what is the cause.....?
by Ray O'Donohue
Mon Sep 21, 2015 3:21 am
Forum: Body, Paint & Rubber Shop
Topic: Metal tank for 73 Sport
Replies: 6
Views: 2862

Re: Metal tank for 73 Sport

Don't "MIG" anything on a Ducati ! A good machine deserves good welds,and MIG welding isn't good welding.It barely IS welding,being not far removed from a cold joint,with almost no penetration.
by Ray O'Donohue
Tue Sep 15, 2015 5:56 am
Forum: Wheel, Brake & Tyre Shop
Topic: Disc rear end
Replies: 14
Views: 5437

Re: Disc rear end

I raced a GT750 with that rear drum,and it was not an issue one way or the other.. I probably should have used it less than I did.
by Ray O'Donohue
Tue Sep 15, 2015 5:34 am
Forum: Wheel, Brake & Tyre Shop
Topic: Disc rear end
Replies: 14
Views: 5437

Re: Disc rear end

Part of this may be that many or most riders don't really care how powerful the rear brake is,indeed want it not to be powerful,and there are riders who don't use it at all-Freddie Spencer being one example.That said,maybe in stop and go riding the rear brake becomes more of an asset.
by Ray O'Donohue
Mon Sep 14, 2015 4:30 am
Forum: Wheel, Brake & Tyre Shop
Topic: Disc rear end
Replies: 14
Views: 5437

Re: Disc rear end

Did you look into indexing/grinding the new shoes in the old-fashioned way that a good auto brake shop used to do with drum brake linings? Also,check the hub/liner for roundness? Probably finding a replacement rear hub would be not too expensive,due to all the "upgrades" that have been done over the...
by Ray O'Donohue
Thu Sep 10, 2015 4:40 am
Forum: Wheel, Brake & Tyre Shop
Topic: Disc rear end
Replies: 14
Views: 5437

Re: Disc rear end

Just a suggestion: Set up that drum carefully,and put your efforts into other issues. (It being a Ducati,you do have other issues...). There is little to be gained-arguably,nothing-by the use of a more powerful rear brake. You may also be increasing unsprung weight back there with conversion to a di...
by Ray O'Donohue
Fri Aug 28, 2015 3:27 am
Forum: Engine & Transmission Shop
Topic: Upper oil filter inlet flow orifice
Replies: 9
Views: 3564

Re: Upper oil filter inlet flow orifice

Right. I think this was not done by Ducati,but I may be wrong. The answer fill probably be found in the parts books.
by Ray O'Donohue
Wed Aug 26, 2015 8:43 am
Forum: Engine & Transmission Shop
Topic: Upper oil filter inlet flow orifice
Replies: 9
Views: 3564

Re: Upper oil filter inlet flow orifice

I should add that the amount of oil which will by gravity flow down through this line is unknown,and the inner diameter of the braided steel line is not very large.Perhaps it is a big help,or perhaps not... I rigged the thing up for my race bike one winter,but never got back on the track to use it.
by Ray O'Donohue
Wed Aug 26, 2015 5:52 am
Forum: Engine & Transmission Shop
Topic: Upper oil filter inlet flow orifice
Replies: 9
Views: 3564

Re: Upper oil filter inlet flow orifice

Also,if anyone is interested,I have one of those rigged up,with the upper end tapped into a welded bung on a valve cover and tapped into a filler plug.Braided steel line. Can send photo but only by e-mail (Posting a photo on this board is beyond me.) Will sell inc. freight for $50. U.S. only.
by Ray O'Donohue
Wed Aug 26, 2015 4:50 am
Forum: Engine & Transmission Shop
Topic: Upper oil filter inlet flow orifice
Replies: 9
Views: 3564

Re: Upper oil filter inlet flow orifice

This may be irrelevant or it may help: In racing and/or when using too heavy an oil,the front rocker box on bevels may flood,causing the front exhaust valve/guide/seal area to run submerged in oil. Not good. One solution is to restrict the oil flow a bit with such a plug. Another solution,perhaps sa...

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