Ethanol injectors/pump/regulator

Heribert · Post by **Heribert** » Wed Apr 18, 2007 9:59 am

I have run what was originally a 3 liter KE Jetronic engine on Megasquirt with all of the original fuel supply system for several thousand kmÃ‚Â´s .
No problems whatsoever except for cold starts.
Due to E85 cost tuned back to petrol and the car has now another 100.000 km on it, total of 380.000 with the same fuel pump!
Recently SAAB has had to call back quite a few new cars running on flexifuel ( ie E85) since the fuel pumps conked out . This was due to that the carbon brushes did not last when running in E85 !

MY guess is that an old BOSCH pump from a KJet system will last very long on E85.

Heribert

Pascal06 · Post by **Pascal06** » Wed Apr 18, 2007 10:44 pm

Hello,
so it isn't clear what will resist or not to ethanol, some very old pump will, and other more recent not.
I keep on seeking info on that

bohalrantipol · Post by **bohalrantipol** » Thu Apr 19, 2007 6:56 am

Yes, what exactly is subject to deterioration? is it the wire coil on the armature do to the resin they use to seal it? is it the metal casing usually aluminum? the brushes? enquiring minds want to know, i will investigate.

bohalrantipol · Post by **bohalrantipol** » Thu Apr 19, 2007 10:22 am

seems that is is mainly the fact that there is exposed aluminum and also the fact that gasoline is not conductive and ethanol is. who knows, trial and error would seem to be the best test. anyone have pumps they know failed due to ethanol exposure, and also ones that seem to last?

CARS · Post by **CARS** » Mon Apr 23, 2007 6:02 am

I have been asking this question at the E85 forum and someone replied this weekend that bosch injectors made after 1988 will resist the problems with ethanol. Now what "resist" actually means has yet to be determined.

CARS · Post by **CARS** » Mon Apr 23, 2007 12:09 pm

I finally got a responce from someone!!!

"Chris - You can use the Siemens injectors and the Walbro pumps with E85 fuel.

Bruce Holt,
Owner-Fiveomotorsport
No eBay links allowed
http://www.fiveomotorsport.com

Order Fuel Injectors Online: 100% Replacement Warranty
http://www.fiveomotorsport.com/Injector_Sets.asp"

I'm not promoting this place, I just thought you all would like to see the response.

PayPal: bruce@fiveomotorsport.com

Pascal06 · Post by **Pascal06** » Thu Apr 26, 2007 12:10 pm

CARS,
thanks for your post...
But there aren't really obvious info... I keep on !