[TR] Bad Gas?

Greg Lemon glemon at neb.rr.com
Mon Feb 10 21:51:54 MST 2014


Sorry, forgot to mention, did try tapping with a small hammer already, 
didn't help.  Bad thing with Strombergs (vs. SUs), you have to pull the 
bottom of the carb off to get to the float and float valve, so beast and 
easiest to do with the carbs off the car.

Greg

--------------------------------------------------
From: <wbeech at flash.net>
Sent: Monday, February 10, 2014 10:13 PM
To: "'Greg Lemon'" <glemon at neb.rr.com>; <triumphs at autox.team.net>
Subject: RE: [TR] Bad Gas?

> I'd pull the carb tops first, probably the needle valves are froze shut.
>
> Or, if you have an electric fuel pump just give each float bowl an sharp
> 'rap' with a screwdriver handle while the key is on to see if that jars it
> loose.  If that fixes it you still need to pull the carb tops and clean
> everything up.
>
> Bill
>
> -----Original Message-----
> From: triumphs-bounces at autox.team.net
> [mailto:triumphs-bounces at autox.team.net] On Behalf Of Greg Lemon
> Sent: Monday, February 10, 2014 9:21 PM
> To: triumphs at autox.team.net
> Subject: [TR] Bad Gas?
>
> Sorry I am being a little lazy, and haven't delved into this issue as far 
> as
> I usually do before posting for help, but perhaps a few of you, like me, 
> are
> housebound with subzero temps out in the garage and might like to
> participate in a little bit of mental exercise in tracking down a problem.
>
> As usual I put up my car (TR250, ZS carbs from a TR4A) for the winter, and
> last started it sometime in November.  A couple weekends ago it warmed up 
> a
> little bit and I tried to start the car to circulate the oil, burn off any
> contaminants, etc.  It started and ran for a short time, then quit.  Got 
> it
> to fire again, started for an even shorter time and then quit.  No time 
> for
> further work that day so fast forward to last weekend.
>
> Checked gas delivery, it squirted right out when I disconnected the fuel
> line right before the carb.  Tried to start it again, got barely enough of 
> a
> catch to disengage the starter gear then nothing.
>
> Pulled the air cleaners, pistons moving up and down freely.  I squirted 
> some
> starter fluid in, it ran on the starter fluid, then quit.
>
> So it appears I have gas getting to the carbs, I have spark and presumably
> compression.
>
> Something appears to be wrong with the gas or the carbs, have never used
> sta-bil or other gas stabilizers in the past, and never had any problems,
> even with much longer periods of inactivity, but I noticed they are 
> putting
> ethanol into all grades of gas around here instead of just mid-grade at 
> some
> of the stations, I try to avoid it, and it is supposed to be labeled, but
> who knows.
> My only other thought is that the float valves are stuck shut, but I did
> squirt some air through the line to the carbs, and that ended up shooting
> gas out the carbs.
>
> So here comes the question, short of draining the gas and replacing it, or
> taking off the carbs and checking the float valves, any other tests or 
> fixes
> you might suggest?
>
> Oh yeah, car was running fine when put up for the winter, and I did 
> nothing
> to any of the relevant systems, carbs fuel ignition, since parking it.
> Pertronix if it matters, but this one sure seems like a fuel issue.
>
> Greg Lemon
>
> ** triumphs at autox.team.net **
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/triumphs/wbeech@flash.net


More information about the Triumphs mailing list