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Re: Can't Adjust fuel bowl height
[Re: Sammy]
#2773506
05/11/20 01:10 PM
05/11/20 01:10 PM
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Joined: Dec 2005
Posts: 12,318 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 12,318
Fulton County, PA
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Check fuel pressure and replace needle and seats This...Verify the gauge is right too. Needle and seats, as stated, I've had the O-rings shrink and not seal. If you screw the thing out and pull it out of the bore there should be a little felt resistance if its snug enough in the bore. Make sure the floats aren't heavy too. There is no resistance at all o rings definitely look smaller and not plump. All 4 are bad. Never seen this happen before. This Q16 stuff is nasty. Pump gas is also not good on this stuff. Have had this occur before. O rings shrink and get hard. Q is not supposed to be left in the fuel system. Says on the can.
If the results don't match the theory, change the theory.
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Re: Can't Adjust fuel bowl height
[Re: Mark Whitener]
#2773827
05/12/20 10:46 AM
05/12/20 10:46 AM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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In addition, I use Vaseline on the needle n seats when installing em.......
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Can't Adjust fuel bowl height
[Re: fourgearsavoy]
#2774528
05/14/20 02:21 PM
05/14/20 02:21 PM
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Joined: Dec 2012
Posts: 1,824 Wind Gap,Pa.
Sammy
OP
top fuel
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OP
top fuel
Joined: Dec 2012
Posts: 1,824
Wind Gap,Pa.
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So I ordered a 10 pack of o rings off of ebay. Shipped $11.25 Was cheaper from all carbs but I'm ok with it. I did order 4 new needle and seats from Summit. The o rings showed up 1st. Lol So i picked out the old o rings and sure enough they were brittle and just snapped off. Going to install the needle and seats in a few after lunch and see if the problem is still there. Hopefully this was the fix. The needles were cleaned and they move freely.
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Re: Can't Adjust fuel bowl height
[Re: Cab_Burge]
#2774565
05/14/20 03:45 PM
05/14/20 03:45 PM
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Joined: Dec 2012
Posts: 1,824 Wind Gap,Pa.
Sammy
OP
top fuel
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OP
top fuel
Joined: Dec 2012
Posts: 1,824
Wind Gap,Pa.
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Are your new O rings Viton, neopreme or what are they made of? Love that Q16, don't we I believe they are viton. I'll have to check but I just installed them and they are a nice tight fit. Adjusted them to where I think they should be and NO MORE FLOODING. And yes this Q16 is nasty stuff. And I do drain the bowls after each use. Putting this on my maintenance schedule.
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