|
|
|
|
| Author |
|
|
Registered
Join Date: Oct 2009
Posts: 568
|
Engine problem 930 78 3,3
Hello. When engine is hot and has been off for approx. 45 minutes. Start it badly. it is as though drowning. First I thought it was fuel shortages and changed a whole lot of parts it did not help
 but think now that it drowns. What can I do about the problem ???Regards john |
||
08-08-2010, 09:33 AM
|
|
|
beancounter
Join Date: Jan 2008
Location: Weehawken, NJ
Posts: 3,593
|
Assume you are running the stock CIS? Hot start issues seem to usually be traceable to a bad fuel accumulator or check-valve at the front fuel pump. You say that you've replaced a lot of parts already...was the accumulator one of them?
Have you verified your hot/cold control pressures, operating system pressure and residual pressure? I'd check these things first. When you say its "drowning" I take that to mean you think its rich (too much fuel?). Maybe there is an issue with the cold start valve.
__________________
Jacob Current: 1983 911 GT4 Race Car / 1999 Spec Miata / 2000 MB SL500 / 1998 MB E300TD / 1998 BMW R1100RT / 2016 KTM Duke 690 Past: 2009 997 Turbo Cab / 1979 930 |
||
|
08-08-2010, 09:59 AM
|
|
|
Registered
|
Had same problem on my 78 930 last year.
I replaced fuel accumulator and have never had this problem since
__________________
Trond R. 1979 930: Garret GT35r turbo, EFI, carerra intake, Link EMS, custom GT2 cams, 98mm JE P/C, 964 crank (stroker), custom valves & ported (XtremeCylinderHeads) etc..etc.. 1972 914-6 GT replica project 1986 944 Turbo |
||
|
08-09-2010, 09:35 AM
|
|
Porsche 911 Turbo
Porsche 911 Turbo
