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SORN
by OldSkrote - 31/07/25 02:07 PM
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New
by Rex_tulips - 30/07/25 07:59 PM
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Forums34
Topics48,375
Posts813,544
Members9,215
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Most Online1,046
Aug 24th, 2023
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Joined: Jul 2007
Posts: 26,770 Likes: 429
Member of the Inner Circle
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Member of the Inner Circle
Joined: Jul 2007
Posts: 26,770 Likes: 429 |
JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger
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Joined: May 2014
Posts: 2,774
Talk Morgan Expert
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Talk Morgan Expert
Joined: May 2014
Posts: 2,774 |
Agree with Mr juggler.. Should be 20/50 in the dash pots. Even with worn jets and spindles you ought to be able to adjust the mixture to rich to at least prove a point. Make sure the needles are sitting correctly and Pistons are moving up and down cleanly and smoothly. Had one once where the owner hadn't tightened up the screws evenly and the piston was sticking.
A piece of hose can be used to get an approx equal 'suck' again at least close enough for testing. sU's are simple carbs really.
Steve
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Joined: Apr 2013
Posts: 142
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Apr 2013
Posts: 142 |
Well I just went OCD and took the carbs off for a throttle shaft replacement and to polish them up with again new seals/gaskets.
I do love how easy SUs are to work on, even though centering the jets can be a pain in the backside. The nut you turn to center the jet is the same one used to put pressure on the bottom cork gasket, so if you loosen it to help center the jet it might leak. Also I find that if I turn the mixture adjusting nut at the bottom sometimes it tries to rotate the jet as well.
Last edited by Read T; 05/01/15 10:56 PM.
1960 Morgan +4 4 seater
1997 Nissan 240sx S14
2011 Nissan 370Z
2009 Triumph Street Triple
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Joined: Jan 2007
Posts: 2,384 Likes: 56
Talk Morgan Expert
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Talk Morgan Expert
Joined: Jan 2007
Posts: 2,384 Likes: 56 |
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