I checked the fuel pressure as it leave the tank, it's 75psi will a running engine. I have not been able to re-create the hot start issue, the car is still up on saw horses, but I should have it back on the ground next weekend. I was kinda hoping that the fuel pressure would be low as it would give me something to fix. What would be your best guess?
Graham On Sun, Apr 1, 2012 at 6:05 PM, fast G <[email protected]> wrote: > > > On Tue, Mar 27, 2012 at 2:27 PM, Ken Bogart <[email protected]> wrote: > >> I would plumb one inline on the hose going to the fuel rail. >> >> First determine if your tank is venting by checking gas cap. I would >> release the pressure and see if it starts. Is it under pressure or vacuum? >> >> Ken Bogart >> ----------------------------------------------------- >> 96 Montego Blue FFS Coldside (His) >> 97 Black & Tan (Hers) >> 90 Crystal White (sons) >> ------------------------------------------------------ >> http://www.miatacare.com >> http://www.cincimiata.com >> MiataMail.com list owner >> >> >> On Tue, Mar 27, 2012 at 3:24 PM, fast G <[email protected]> wrote: >> >>> >>> >>> I am not sure that I have any FPR at all. I can see nothing in the tank >>> apart from the pump. It should be running again this week. What is the >>> simplest way to get a fuel pressure gauge into the fuel line? >>> >>> Graham >>> >>> >>> On Tue, Mar 27, 2012 at 2:10 PM, Ken Bogart <[email protected]>wrote: >>> >>>> Have you checked fuel pressure under the running, hot and not so hot >>>> conditions? >>>> >>>> The NB has a returnless system, the FPR is essentially on the fuel pump >>>> end. The dampener is supposed to accommodate pulsations, but does not >>>> control pressure. >>>> >>>> What if you loosen gas cap? does it suck or blow under this condition? >>>> >>>> Ken Bogart >>>> ----------------------------------------------------- >>>> 96 Montego Blue FFS Coldside (His) >>>> 97 Black & Tan (Hers) >>>> 90 Crystal White (sons) >>>> ------------------------------------------------------ >>>> http://www.miatacare.com >>>> http://www.cincimiata.com >>>> MiataMail.com list owner >>>> >>>> >>>> On Tue, Mar 27, 2012 at 2:59 PM, Helsel, Walt <[email protected]>wrote: >>>> >>>>> Good, someone that knows what they are talking about. J**** >>>>> >>>>> ** ** >>>>> >>>>> (I haven’t looked under the hood of a Miata in 11 months, and last >>>>> time I did it had a half finished V8 in there… )**** >>>>> >>>>> ** ** >>>>> >>>>> Wallyman**** >>>>> >>>>> ** ** >>>>> >>>>> *From:* Bill Cardell [mailto:[email protected]] >>>>> *Sent:* Tuesday, March 27, 2012 2:55 PM >>>>> *To:* Helsel, Walt >>>>> *Cc:* fast G; [email protected] >>>>> *Subject:* Re: Miata based Lotus 7**** >>>>> >>>>> ** ** >>>>> >>>>> More likely it's an nb pulse damper, which is the same footprint. >>>>> >>>>> Bill Cardell**** >>>>> >>>>> Owner, Flyin' Miata**** >>>>> >>>>> Www.flyinmiata.com**** >>>>> >>>>> 1-800-FLY-MX5s**** >>>>> >>>>> 970-464-5600**** >>>>> >>>>> ** ** >>>>> >>>>> >>>>> On Mar 27, 2012, at 12:13 PM, "Helsel, Walt" <[email protected]> >>>>> wrote:**** >>>>> >>>>> Your “surge unit” in photo 3 sure looks like a stock Miata Fuel >>>>> Pressure Regulator to me…**** >>>>> >>>>> **** >>>>> >>>>> Wallyman**** >>>>> >>>>> **** >>>>> >>>>> **** >>>>> >>>>> **** >>>>> >>>>> *From:* [email protected] >>>>> [mailto:[email protected]] *On Behalf Of *fast G >>>>> *Sent:* Tuesday, March 27, 2012 1:16 PM >>>>> *To:* [email protected] >>>>> *Subject:* Miata based Lotus 7**** >>>>> >>>>> **** >>>>> >>>>> I am hoping you guys can help me because I am really confused. **** >>>>> >>>>> **** >>>>> >>>>> I have a Miata powered Locost 7 based on a 2002 1.8 Miata (return less >>>>> injection). The car has a hot start issue, it runs well, if I switch it >>>>> off >>>>> it re-starts fine. If I switch it all and wait 5 mins it will not restart >>>>> until it cools down, say 20 mins. I got the car built so I do not >>>>> understand why the fuel system is plumbed the way it is. But to me it >>>>> looks >>>>> totally wrong. To me it looks like the feed line goes to the fuel surge >>>>> unit, the return line goes to the evaporator canister, and the vent line >>>>> is >>>>> just vented to the atmosphere. I am not sure I have a fuel pressure >>>>> regulator at all. **** >>>>> >>>>> **** >>>>> >>>>> The first picture is of the tank **** >>>>> >>>>> **** >>>>> >>>>> >>>>> http://s562.photobucket.com/albums/ss63/fastgxc/?action=view¤t=2012-03-24115835.jpg >>>>> **** >>>>> >>>>> **** >>>>> >>>>> The hose at 2 o'clock goes to the evaporation canister. 4 o'clock is >>>>> the fuel feed. 9 o'clock in a vent line, just vented to atmosphere. ** >>>>> ** >>>>> >>>>> **** >>>>> >>>>> Picture 2 is the evaporation canister were the 2 o'clock hose goes.*** >>>>> * >>>>> >>>>> **** >>>>> >>>>> >>>>> http://s562.photobucket.com/albums/ss63/fastgxc/?action=view¤t=2012-03-24115905.jpg >>>>> **** >>>>> >>>>> **** >>>>> >>>>> Picture 3 is the surge unit.were the 4 o'clock hose goes**** >>>>> >>>>> **** >>>>> >>>>> >>>>> http://s562.photobucket.com/albums/ss63/fastgxc/?action=view¤t=2012-03-24115921.jpg >>>>> **** >>>>> >>>>> **** >>>>> >>>>> So I am thinking that I don't actually have a fuel pressure regulator >>>>> at all. **** >>>>> >>>>> **** >>>>> >>>>> I am looking for a plan of action to work all this out.**** >>>>> >>>>> **** >>>>> >>>>> What do you think?**** >>>>> >>>>> **** >>>>> >>>>> Graham **** >>>>> >>>>> **** >>>>> >>>>> ** ** >>>>> >>>>> This e-mail and any attachments contain URS Corporation confidential >>>>> information that may be proprietary or privileged. If you receive this >>>>> message in error or are not the intended recipient, you should not retain, >>>>> distribute, disclose or use any of this information and you should destroy >>>>> the e-mail and any attachments or copies.**** >>>>> >>>>> _______________________________________________ >>>>> Miatapower mailing list >>>>> [email protected] >>>>> http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower**** >>>>> >>>>> >>>>> _______________________________________________ >>>>> Miatapower mailing list >>>>> [email protected] >>>>> http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower >>>>> >>>>> >>>> >>> >>> >>> _______________________________________________ >>> Miatapower mailing list >>> [email protected] >>> http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower >>> >>> >> >
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