I found a slow leak on the injector pump. not sure yet where the fuel is coming from as it is very slow. It may be the upper bleed screw but seems to be coming from the top of the pump. Any ideas of what can leak on the top of the pump? Any suggestions on locating it?
Going back up today to stare at it some more, maybe find the source.
Len
Len
What type of engine are you working on?
Mine is a Universal 5444, and it is the injector lines that I always had to make sure were tight. Also the bleed arrangement could be loose, but if it hasn't been removed it is unlikely though. A little diesel could be running from a small crack in a line, and just pooling on the top of the pump. Are the lines corroded under the clamps that hold them? Have they been rubbing against anything?
Not sure if this helps, but good luck.
Just back from the boat. The leak is at the throttle shut off shaft on the top of the pump. Is this something I can fix or do I need to take it in for repair?
If you have the CAV pump, (westerbeke 40 engine) I am pretty sure you can remove the 2 nuts that hold the upper housing onto the pump. then remove the housing and replace the seals. I would definitely contact:
Everglades Diesel Injection
evergladesdiesel.com
(954) 522-1780
243 Sw 33rd Ct, Fort Lauderdale, FL
Ask for Bill Gonzales.
These guys were outstanding when I had injection pump problems on Journey. They also replaced my upper housing gasket in about 5 minutes in the shop so I am pretty sure it will be an easy deal for you. For sure they will have your parts. The only thing that concerns me is that maybe there are adjustments that can be undone under the cover as the cover has sealed wire that voids the warranty if you remove the lead seal.
Removing the pump is a heroes job, so if you can replace the gaskets, I would highly suggest you do so without pulling the pump.
Yes I have the W40 1981 vintage. I have been advised to pull it and have it checked out and probably rebuilt. So what am I getting myself into? I lost my hero costume a long time ago :)
Thanks,
Len
Probably a boat buck for the overhaul plus shipping. ($1,000)
Replacing it is doable, its just..... bitchy.
The job took me about an hour to get it out, and about 4 hours to get it in and bled. (I kept dropping the bottom bolt and washer into the bilge) The mount bolts are a cast iron beast to get to. You will need some decent extensions,swivels, and an internal wrenching socket for one of the mount bolts, and yo will definitely need a shop manual. Its just an ugly job, and expensive, that I would avoid if possible.
I have removed the exhaust manifold and the plumbing to the muffler. It's a hot job in 90 degree weather. So Monday I'll go up and remove the pump. The local shop was familiar with that pump and said if it was leaking from the fuel shut off shaft that it was time for a rebuild. Quoted $475+ tax and 2 or 3 days to complete.
I'll let you know how it goes.
Len
The pump has been rebuilt and looks like new, hope it goes back in easier than it came out. Hope to give it a go tomorrow.
Len
The pump is in and I have a leak or the timing is off. I have checked all the connections I can reach. I cut my 5/8 wrench down so I could get it on the bottom line to see if it was loose. Not sure if that was successful, not much leverage with a 4 inch wrench while doing boat yoga. Not sure how to proceed at this time. I may take everything apart and start from square one or try to find a diesel mechanic to look at it. Not many do house calls to Lake Coeur d'Alene. I really don't want to take it all apart again, any ideas? :(
It's alive!
After bleeding the fuel system a dozen times, breaking a bleed screw, hiring a diesel mechanic look at it finding nothing wrong, removing the pump and retesting it. I found that the shaft on the throttle control had pushed down into the injector pump allowing the control arm to slip off. So the throttle was not connected. Why is it the simple thing always get you?
Len