Problems

[Meatloaf]

Hi all,

Any ideas

going along fine with 20hp evinrude , when suddenly lost power and seemed to be running on one cylinder.. !!
Limped into cullercoats, and while having a look and restarting pull cord snapped
End of day !!!!!
If pull snapped at sea would be stuffed ( maybe a lesson to learn here )
Where did it go wrong (maybe getting out of bed )

Any thoughts on engine appreciated and I know I should really carry a spare engine , but what size do you think for 15 grp /small cabin boats


thanks

Dave

[Oblickta]

I'd not feel safe with less than 30 horses and an auxilery in the North sea.

[oldessox]

I've got a 5hp aux on the back of my 16.5ft boat , I'd hate to have to use it in any sort of dodgy weather though , it's in a really awkward position to start use and steer with from in side the boat. I really should practice using it , but when the conditions are good enough to go to sea all I really want to do is fish
I think the first priority should be the most reliable main engine you can afford , rather than looking for an auxilliary in case an unreliable main engine fails
Other than that anything has to be better than nothing as a back up power unit .

Ray

[Meatloaf]

thanks Ray

Guess not many people know much about outboards !!


Think it may have been bad fuel and also going to alter oil mix from 100.1 to 50.1 , cant do much harm,,
Prob will change spark plug leads to , once I can find somewhere that sells them .

Dave

[mark]

Originally Posted by Meatloaf

thanks Ray

Guess not many people know much about outboards !!


Think it may have been bad fuel and also going to alter oil mix from 100.1 to 50.1 , cant do much harm,,
Prob will change spark plug leads to , once I can find somewhere that sells them .

Dave

what 'rude is it?? most 'rudes and johnsons I've come across should be 50:1 anyway, running 100:1 on a 50:1 motor will knack it eventually

what 2 stroke oil you using?? you should only use oil marked TCW3, designed for outboards. 'normal' 2 stroke oil is designed for engines that run hot (mowers/chainsaws/bikes etc)so it burns thoroughly, outboards run relatively cold by comparison, so you will start to get a build of unburnt oil gumming up the exhaust after a short while

crack the carbs open at the drain plug and flush them out, stick new plugs in and clean fresh petrol with the right oil/mix and see what happens

as for an aux motor 6hp will shove it along at displacement speed, which is about 5knots max, not fast but enough to keep headway into a sea and get you home

[Meatloaf]

Thanks Mark,

Its a Evinrude model BE 20B FL CUR ( no idea of year )
Oil states its api tc , suitable for motorbikes , lawnmowers :and certain types of outboard engines !!

Dave

[Meatloaf]

Found out its 1987

[mark]

defo the wrong oil. look for 'TCW3' on the oil.

the only outboards that would work in would be air cooled ones I'd guess

not 100% certain of the mix, but think it should be 50:1, the only motors of that age that were 100:1 were yam's. will have look see if I can find out more