While bleeding the injection pump,I sheared off the head of the no.3
screw.The mounting for the screw looks as if it is removable,but I
would like to know if anyone else has had a similar problem,and how
did you solve the problem?
Injection pump bleeding screw
Moderator: Jim Walsh
Re: Injection pump bleeding screw
What brand of engine, Bob?
TomCambria@mindspring.com
Bob Bryan wrote: While bleeding the injection pump,I sheared off the head of the no.3
screw.The mounting for the screw looks as if it is removable,but I
would like to know if anyone else has had a similar problem,and how
did you solve the problem?
TomCambria@mindspring.com
Re: Injection pump bleeding screw
You should try removing the screw with a "screw extractor." They come in various sizes. You choose the right size for your sheared screw, drill a pilot hole in the middle of the sheared screw (not all the way through). The screw extractor has reverse threads on one end and is square on the other end so you can turn it with a wrench. It will bite in the pilot hole as you turn counterclockwise.
Go slowly and squirt WD40 or PB Blaster on the screw to help in loosening it. Be very careful not to ruin the female threads on the engine. Also, as the screw starts to come loose, be sure to wipe the area thoroughly before it comes out so you don't get drill shavings, dirt, etc., in your fuel.
The extractor worked well for me when I sheared a stainless screw holding a mast winch in.
Best of luck
Bill Goldsmith
CD27 #173
Second Chance
goldy@bestweb.net
Go slowly and squirt WD40 or PB Blaster on the screw to help in loosening it. Be very careful not to ruin the female threads on the engine. Also, as the screw starts to come loose, be sure to wipe the area thoroughly before it comes out so you don't get drill shavings, dirt, etc., in your fuel.
The extractor worked well for me when I sheared a stainless screw holding a mast winch in.
Best of luck
Bill Goldsmith
CD27 #173
Second Chance
Bob Bryan wrote: While bleeding the injection pump,I sheared off the head of the no.3
screw.The mounting for the screw looks as if it is removable,but I
would like to know if anyone else has had a similar problem,and how
did you solve the problem?
goldy@bestweb.net
Re: Injection pump bleeding screw
We need to know what kind of motor-I did the same thing on my volvo-because they basically drill a hole through the bolt diagnolly up from the bottom so when you "crack" the bolt open the air will bleed out-this greatly weakens the bolt-it did thread into another fitting and I was able to get that fitting out and find a replacement "bleed Screw"-but I was really upset-because on my boat-that pump is not wasy to get at-coincidentally enough I have never had to use that bleed screw again-as its "the last in line" and I find these motors will purge the air thats in the line-if you can get them running-after I change the primary and secondary fuel filters I have someone crank the motor over while I loosen the bleed screw an the secondary (closest to the engine) filter-it pumps out air and fuel-(wear googles), the motor starts-and I tighten the screw and thats it-other wise you have to use that silly little hand primer and that takes along time-your problem could be minor-if you can get the fitting the bleed screw threads into off and into your workshop-it will be easy-if not?Bob Bryan wrote: While bleeding the injection pump,I sheared off the head of the no.3
screw.The mounting for the screw looks as if it is removable,but I
would like to know if anyone else has had a similar problem,and how
did you solve the problem?
greneir@localnet.com