Recent rebuild of a friends 1970 A-4 that had seized and been taken apart in a random fashion... Very frustrating due to multiple frozen/rusted/broken studs and bolts in the head and manifold and water jacket... but thanks Don for all the parts.
Engine finally running well with the exception of the mechanical fuel pump which was rebuilt, pumps fine with the bail but not putting out otherwise.
The pin looks slightly worn on one end and the cam also looks a little worn but not excessive...don't feel any air or vacuum leak using the bail...
Fuel pump tear down today didn't reveal anything aside from the slight pin and cam wear... I have a suspicion that it may be in the housing but I cant see anything and it looks to be in excellent condition throughout...
Any ideas what the most likely culprit is? And also solutions (aside from the expensive obvious ones or the use of a small child to work the bail while motoring...)
Does anyone have any pics of the fuel pump since I have to admit I didn't have a pic when I took it apart today and someone took the manual off the boat...
It looked right from memory but I may have overlooked something.
It makes sense to me to install an electric pump kit if the feeling is the mechanical one is shot but we were hoping to install a new carb since the old one is actually in far worse shape than the pump and at this point we are way over budget...
Trying to get the boat, a Tartan 27, launched asap and motor is pretty important at this point...
PS, been away from the forum for a while since my "new" 1966 Morgan 34... has a Yanmar. (Loud stinky but very reliable!)
Miss the A-4 though... ( Well not after the last week or so!....)
I do enjoy reading the posts. Glad to see so many still going strong despite the ethanol problems... I miss the trips to the airport to get my 100LL...
Fair winds..
Thanks
Rich.
Engine finally running well with the exception of the mechanical fuel pump which was rebuilt, pumps fine with the bail but not putting out otherwise.
The pin looks slightly worn on one end and the cam also looks a little worn but not excessive...don't feel any air or vacuum leak using the bail...
Fuel pump tear down today didn't reveal anything aside from the slight pin and cam wear... I have a suspicion that it may be in the housing but I cant see anything and it looks to be in excellent condition throughout...
Any ideas what the most likely culprit is? And also solutions (aside from the expensive obvious ones or the use of a small child to work the bail while motoring...)
Does anyone have any pics of the fuel pump since I have to admit I didn't have a pic when I took it apart today and someone took the manual off the boat...
It looked right from memory but I may have overlooked something.
It makes sense to me to install an electric pump kit if the feeling is the mechanical one is shot but we were hoping to install a new carb since the old one is actually in far worse shape than the pump and at this point we are way over budget...
Trying to get the boat, a Tartan 27, launched asap and motor is pretty important at this point...
PS, been away from the forum for a while since my "new" 1966 Morgan 34... has a Yanmar. (Loud stinky but very reliable!)
Miss the A-4 though... ( Well not after the last week or so!....)
I do enjoy reading the posts. Glad to see so many still going strong despite the ethanol problems... I miss the trips to the airport to get my 100LL...
Fair winds..
Thanks
Rich.
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