It's a '72 Midget with the 1275 engine.
Yep, I'm not getting fuel to the carb in the first place. With the hose
pulled at the rear carb, the pump "kathunks" a little slowly, some gas
dribbles out, and the pump stops. It doesn't sound at all like the MGB
I had a few years back that went "thikita-thikita" pretty quick when I
turned on the ignition and then slowed down to "kathunks" as pressure
built up.
So, I think the explanation is that I've got a plug, probably in the
filter. The gas smell is probably coming from the overflow lines; which
are just stuck on without benefits of clamps. The smoke is probably
coming from fouled plugs/dry cylinders that aren't running all the time.
jello@ida.net wrote:
>DON'T ASK THE LIST WHAT OIL TO USE IN THOSE CARBS!!! You'll get too many
>varied responses, and you never know who is worth listening to (Althought
>Barney Gaylord, and Larry Hoy are both pretty good). It doesn't matter a
>lot really. Some people say use the same grade oil as you use in your
>engine - so it's thin in the winter, and thick in the summer. Others will
>say straight 30 wt. And yet others will say use ATF. I use ATF, it's
>been fine for me for years.
>
>It's kind of rare to not have gas, usually what happens is the seats on
>the valves wear out, and gas overflows out the little overflow spigots.
>I'd guess it's a filter or blockage in the line. I don't even know the
>car you're working on, I assume it's a B. If it's an A though, there is a
>screen just past the banjo bolt, and it is the filter system, and can get
>clogged.
>
>Phil Bates
>'67 MGB
>'58 MGA
>
>
>
>>I found the rear one had very little gas in it. Maybe the valve was
>>stuck closed as the result of really old gas?
>>
>>Anyway, I blew through the line to free it up. Any clue what oil to use
>>to refil the front pot? I dumped the thing out on the ground in my
>>fiddling.
>>
>>I'd be a little disgruntled at the wee bit of a car if not for the fact
>>that the Grand Cherokee is stranded this morning due to a leaky
>>injector. ;-)
>>
>> - K
>>
>>jello@ida.net wrote:
>>
>>
>>
>>>Float valves are easy. If you know where the float bowl is, remove the
>>>top of the bowl, and there should be a long thin brass thing on it
>>>(internal to the float chamber). Remove the pin holding the arm on,
>>>
>>>
>and
>
>
>>>use the right sized wrench to remove the float valve. Check the
>>>
>>>
>surfaces
>
>
>>>to see if they are worn or not - if worn, replace, if not, clean with
>>>
>>>
>carb
>
>
>>>cleaner.
>>>
>>>Installation is the reverse of removal (I always wanted to say that)
>>>
>>>Phil Bates
>>>'67 MGB
>>>'58 MGA
>>>
>>>
>>>
>>>
>>>
>>>>Same problem this morning. Just fine for a few blocks and then I seem
>>>>to be running on two cylinders. Compression check shows 110 all
>>>>
>>>>
>around.
>
>
>>>>Plugs are wet.
>>>>
>>>>Like I said, I don't know a thing about SUs, even though I've heard
>>>>about them on the Datsun 510 Bluebirds mailing list for years. How do
>>>>
>>>>
>I
>
>
>>>>fix a dirty float valve?
>>>>
>>>>- Kendel "late to work" McCarley
>>>>
>>>>Charles & Peggy Robinson wrote:
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>If it reeks of gas when running, it's obviously flooding. That
>>>>>
>>>>>
>smoke
>
>
>>>>>you thought was blue, could have been black. The fact that the
>>>>>problem came and went doesn't indicate major internal engine
>>>>>problems. It could be just a dirty float valve.
>>>>>
>>>>> Cheers,
>>>>>
>>>>> CR
>>>>>
>>>>>
>>>>>Kendel McCarley wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>By accident, I acquired a '72 Midget last week (I swear, it just
>>>>>>followed me home). Tonight, I had it out for the first time,
>>>>>>
>>>>>>
>running
>
>
>>>>>>a few errands and getting about five miles from home. On the way
>>>>>>back, I lost power and wasn't able to get over 40 mph. At a stop
>>>>>>light it died. When I started it back up as the light turned green,
>>>>>>I returned to full power for a while until turning left and I went
>>>>>>down again. Lots of blue smoke on starting it back up.
>>>>>>
>>>>>>
>>>>>>It reeks of gas when driving along. I'm just running the gas that
>>>>>>came in the tank when I bought the car.
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