Jhonno
6th October 2012, 03:27 PM
Always something
A new perplexing development, complete Bee-utey conversion, the works, ran like a dream until one HT lead decided to almost exit from the diby cap, couple of large backfires before finding the problem, straightened the distance spacer behind the mixer diaphragm (impco 200) nice except for a slight hum from the mixer at idle, had this problem before, seems to be something to do how successful you are in the straightening exercise, but success was short lived.
On heading out from home there is a fairly good incline about 450 mts long, in 3rd low range she hunts, like starving, gaining fuel, pull her back to 2nd, give a boot full, goes like a dream, same happens on the way home, 2 long hills, 500mts plus each, on the open road the same thing happens just after the change to 4th but more violently, didn't associate the two, thought my nice 92 disco box was about to through in the towel, did a low range test on the open road, no change problems, further testing seems to set the problem at a certain rev range, no tacho at the moment as the original alternator is having surgery. Can't petrol test as she's dedicated gas.
Today pulled the gas side of the converter off, the outer diaphragm has a hard section at the bottom about 50mm long extending approx 10mm up the face at its widest point, gas residue? the inner one appears okay, is it possible that this hard section could be causing problems at a certain rev point.
I was going to purchase a new kit and give it a try no such luck, looks almost identical to an impco L model, except the extended flange covers 4 screw holes not 2, all the internal bits appear to be the same except the outer diaphragm, the cover is stamped OHG inc. Model X-1, can't find it on the net, similar types on ebay but no listing for parts.
Any ideas, do you think I'm on the right track?
Will upload some photos when #1 daughter returns with memory card
All info greatly appreciated
Jhonno
A new perplexing development, complete Bee-utey conversion, the works, ran like a dream until one HT lead decided to almost exit from the diby cap, couple of large backfires before finding the problem, straightened the distance spacer behind the mixer diaphragm (impco 200) nice except for a slight hum from the mixer at idle, had this problem before, seems to be something to do how successful you are in the straightening exercise, but success was short lived.
On heading out from home there is a fairly good incline about 450 mts long, in 3rd low range she hunts, like starving, gaining fuel, pull her back to 2nd, give a boot full, goes like a dream, same happens on the way home, 2 long hills, 500mts plus each, on the open road the same thing happens just after the change to 4th but more violently, didn't associate the two, thought my nice 92 disco box was about to through in the towel, did a low range test on the open road, no change problems, further testing seems to set the problem at a certain rev range, no tacho at the moment as the original alternator is having surgery. Can't petrol test as she's dedicated gas.
Today pulled the gas side of the converter off, the outer diaphragm has a hard section at the bottom about 50mm long extending approx 10mm up the face at its widest point, gas residue? the inner one appears okay, is it possible that this hard section could be causing problems at a certain rev point.
I was going to purchase a new kit and give it a try no such luck, looks almost identical to an impco L model, except the extended flange covers 4 screw holes not 2, all the internal bits appear to be the same except the outer diaphragm, the cover is stamped OHG inc. Model X-1, can't find it on the net, similar types on ebay but no listing for parts.
Any ideas, do you think I'm on the right track?
Will upload some photos when #1 daughter returns with memory card
All info greatly appreciated
Jhonno