I earlier posted on whether to try repairing a leak in the throttle housing arm on a 4-107 perkins
. I decided it was better to send it in for repair and have the rubber seals
replaced with nitrol and totally rebuilt.
When I got the rebuilt fuel pump
back and installed I found that it leaked at the base of the throttle housing arm. The company that repaired the pump specializes in fuel
pumps. They advised me to to tighten the two bolts on top of the housing. This of course meant taking out the heat exchanger/ hoses, etc. and dropping the pump down so as to get to these bolts. The grief this second removal
caused went on for hours. Trying to get the two bolts and gasket
aligned on the heat exchanger
while at the same time slide two hoses on is challenge I would not want to face again. In the process one of the copper pipes (to hose) on the heat exchanger
was cracked at the solder joint and had to be repaired. After tightening the two bolts on the top of the housing it seems to have fixed the leak. I sent the check for full payment yesterday morning. Later yesterday I took the boat out and noticed that there was a very slow fuel
leak ( a drop every 30 sec or so) coming from the bottom of the fuel pump
from two separate places which I had not noticed previously. Until I can understand what is going on here I stopped payment of the check.
I now face the prospect of tracking down the leaks
(using a mirror and finger tip probe) and then removing the heat exchanger once more to get to the fuel pump and tighten the offending banjo connections - if that is what it is. At this point I would sooner walk on hot coals.
Of course I could have sent the fuel pump back to the company. But it seemed a lot easier to just tighten the bolts myself as they advised. The company also claimed they tested the fuel pump for leaks
. If so I am puzzeled by the results and their advice to tighten the bolts on the throttle housing. I will have to once more remove the fuel pump. I have lost
any faith I had in the company and I am considering sending it to another company such as Oregon
Pump for a total rebuild
once more. Any advice would be appreciated. Starboardtack