Quote:
Originally Posted by saujad
thanks for your help. I looked it up and yes I have MW pump.
I am starting to understand. I did not realize I could remove the valves without removing the two bolts. You have saved me from causing uneeded damage and expense.
So it is safe to unscrew the delivery valves. Will it help to soak these in a solution? I will look and see if the plunger is working. Do I need to torque these valves when reinstalling?
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I honestly do not know what chemicals are safe to soak the Pump with. I 30 years ago I worked in a Fuel Injection Shop. When some one brought a IP in with stuck plungers I either tapped the Plunger down to loosen it or took the IP apart.
In your case since the IP is not working I do not see how soaking it can make it worse. I would think that soaking overnight would be enough.
I think the Marvel Mystery Oil is safe because it is kind of oily and it is fairly cheap.
When you loosen that Delivery Valve Holder to get a the Delivery Valves you are supposed to replace the Copper Crush Washers when you re-assemble them and of course tighten them properly.
The instructions for re-tightening would be similar to the instructions that you would follow if you were Drip/Flow timing the Fuel Injection Pump. Except that in your case you would be removing the Delivery Valve Spring and the Valve/Cylinder of the Delivery Valve instead of only the Valve.
There also might be some pics in the DIY.
DIY Repair Links
http://www.peachparts.com/shopforum/forumdisplay.php?f=82
http://www.peachparts.com/Wikka/DoItYourSelf