Rotary Car Club - View Single Post

Jeff20B · 11-20-2008, 01:20 AM

Wulff, I swapped from a 5" SC to a 7" today and I seem to have a stalling problem under braking now. It was very slight before with the 5" but is quite pronounced with the 7". I lowered the fuel pressure from 5 to 4.5 then to 4 and still the same.

It behaves like it's getting too much fuel because it bogs and stalls. To get it started back up I have to floor it as in a typical deflooding proceedure. Then it blows a bit of smoke which is also typical of having been flooded (washes all the oil off the internals).

The engine has lots more power and accelerates better than before but as soon as I slow down or make a panic stop, it dies/floods. Corners are less of a problem since lowering fuel pressure. Only stops cause problems now.

11-20-2008, 01:20 AM	#13
Jeff20B Rotary Fanatic Join Date: Mar 2008 Posts: 215 Rep Power: 18	Wulff, I swapped from a 5" SC to a 7" today and I seem to have a stalling problem under braking now. It was very slight before with the 5" but is quite pronounced with the 7". I lowered the fuel pressure from 5 to 4.5 then to 4 and still the same. It behaves like it's getting too much fuel because it bogs and stalls. To get it started back up I have to floor it as in a typical deflooding proceedure. Then it blows a bit of smoke which is also typical of having been flooded (washes all the oil off the internals). The engine has lots more power and accelerates better than before but as soon as I slow down or make a panic stop, it dies/floods. Corners are less of a problem since lowering fuel pressure. Only stops cause problems now. Last edited by Jeff20B; 11-20-2008 at 01:24 AM.