Follow Up on "New mech. seems to know his stuff"
Well the new mechanic did a lot of stuff including a rebuild of the QuadraJet and it passed CA Smog as well as our newer SUVs. He tested it on a severe grade and it ran great. I picked it up and drove the 45 - 50 miles home and same old lack of power problems. When I took the rig to Gary, I told him it felt like it was starving out under a variety of circumstances and ask him to test both the fuel system and the ignition system. The carb needed rebuilding and the distributor bench tested perfectly which is why I didn't have pinging or misfiring when the vacuum hose collapsed as the centrifugal weights cook care of things.
So now the results, ran great on surface streets but starving out on full throttle and on long grades with the rear jets open.
Back to Gary. Asked if he did a fuel pressure test both on the rear pump and the engine pump. He hadn't because of the difficulty in reaching the pump ... Well he finally checked the engine mounted pump and it was leaking and so he replaced that pump. Some but insignificant improvement. Pulled the hose off the regulator and found the rear pump wasn't putting out even the 6lbs needed.
Conclusion, drain the 90 gallon tank which is half full, drop the tank and replace the in tank pump. Fortunately he has a full lift and may be able to lower the tank without draining. I strongly suggested he drain the tank first but it's his life if that sucker falls...
I already had the extra filters in the filter compartment so he's good to go there for a change out after running for a few miles and filtering out any stuff knocked loose during repairs. So after R&R the tank and the pump, all he has to do is test drive and change both high side filters, the carb filter and the inline filter on the genny.
Cost an additional $850 for both pumps and labor.
Sometimes even good mechanics don't think and assume stuff. Hoping it's done and back home on Friday as we have to start living in it part time during our interior S&B remodel project. Hopefully the final follow up on Saturday or
Sunday.
So now the results, ran great on surface streets but starving out on full throttle and on long grades with the rear jets open.
Back to Gary. Asked if he did a fuel pressure test both on the rear pump and the engine pump. He hadn't because of the difficulty in reaching the pump ... Well he finally checked the engine mounted pump and it was leaking and so he replaced that pump. Some but insignificant improvement. Pulled the hose off the regulator and found the rear pump wasn't putting out even the 6lbs needed.
Conclusion, drain the 90 gallon tank which is half full, drop the tank and replace the in tank pump. Fortunately he has a full lift and may be able to lower the tank without draining. I strongly suggested he drain the tank first but it's his life if that sucker falls...
I already had the extra filters in the filter compartment so he's good to go there for a change out after running for a few miles and filtering out any stuff knocked loose during repairs. So after R&R the tank and the pump, all he has to do is test drive and change both high side filters, the carb filter and the inline filter on the genny.
Cost an additional $850 for both pumps and labor.
Sometimes even good mechanics don't think and assume stuff. Hoping it's done and back home on Friday as we have to start living in it part time during our interior S&B remodel project. Hopefully the final follow up on Saturday or
Sunday.
