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]
<mailto:[email protected]>> wrote:
On Tue, Mar 27, 2012 at 2:27 PM, Ken Bogart
<[email protected] <mailto:[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 <http://MiataMail.com> list owner
On Tue, Mar 27, 2012 at 3:24 PM, fast G <[email protected]
<mailto:[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] <mailto:[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 <http://MiataMail.com> list owner
On Tue, Mar 27, 2012 at 2:59 PM, Helsel, Walt
<[email protected] <mailto:[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]
<mailto:[email protected]>]
*Sent:* Tuesday, March 27, 2012 2:55 PM
*To:* Helsel, Walt
*Cc:* fast G; [email protected]
<mailto:[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 <http://Www.flyinmiata.com>
1-800-FLY-MX5s
970-464-5600 <tel:970-464-5600>
On Mar 27, 2012, at 12:13 PM, "Helsel, Walt"
<[email protected]
<mailto:[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]>
[mailto:[email protected]]
<mailto:[mailto:[email protected]]>
*On Behalf Of *fast G
*Sent:* Tuesday, March 27, 2012 1:16 PM
*To:* [email protected]
<mailto:[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
<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
<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
<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
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