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Old 20 July 2006, 12:17   #1
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Country: UK - England
Town: leeds area
Boat name: nogo
Make: avon
Length: 5m +
Engine: mariner 60efi 4st 08
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selva 80 pulling air

just had boat in for running problems , hes changed 2 coil packs stripped down the carbs and put new jets and floats and rebuilt with new gaskets , put back together and says he cannot get it running right on top and bottom carb, he can however get it something ok but running very lean I/E 1/4 turn out. he now says that the whole engine needs stripping to change the top angd bottom crank seals as its still pulling air in from some where and this is the final place , his he right or am i just wasting money when it could be something else,help as its costing me a fortune cheers andy
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Old 21 July 2006, 21:33   #2
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what year is the thing, it is not likely that the two seals will fail at the same time, mite as well reseal the cases while you're thare, save you from goin back later.
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Old 22 July 2006, 08:52   #3
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its a 1992/3 one he tryed getting it rubbing after just doing the carbs butit wont run evenly the only way to get it running is to have a very fast tickover then slam it into gear but im not happy doing that, so he said its pulling air in from the crank seals as its been stood a few years so will have to replace the top and bottom seals plus the other gaskets whilst stripping the power head, thanks for info thoe
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Old 22 July 2006, 09:02   #4
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heard good things about them, think you got to split the cases any way to get to the end seals, let us know how you make out, save the old seals so we can look.
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Old 22 July 2006, 12:39   #5
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Country: UK - England
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Boat name: nogo
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fast fred

im keeping all the parts he takes of so i know that hes replaced the parts and not just put in a price ,have you any info on selva engines or pics as ive looked on net but as yet found nowt , thanks will post pic's of seals when i get boat back
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Old 22 July 2006, 13:22   #6
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Paint seal your crankcase bolts with a small blob from a tyre pen-then at least you'll be able to see if he's actually taken it apart...
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Old 23 July 2006, 12:18   #7
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Country: UK - England
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its too late as its allready in the boat yard when he said its the coils and carbs done that still not run properly so says its your crank seals and that the whole powerhead needs to come off to replace
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Old 25 July 2006, 12:06   #8
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Country: UK - England
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Selva 80 h.p. pulling air

The U.K. Selva web site is www.selvamarine.co.uk .. you can order spares etc via this site.

Yes if the motor has stood for a long period the crankcase seals may need replacement.

However, before replacing the crankcase seals, try fitting new diaphrams and gaskets in the fuel pumps. If this fail to improve matters then ii's probably the seals.

If you send me a private message with your postal address I will send leaflets covering setting up the carburation on this model which should help your Dealer.

Kind Regards.
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Old 25 July 2006, 13:07   #9
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mike g

sent you a private message thanks for your time,
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