Myke 2463
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| posted on 6/6/16 at 10:41 AM |
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3 cylinder zetec.
My 2.0 silvertop is only sucking on 1 2 3 not no4.
running GSXR 600 tb all opening together.
Compression on all 4 is 140 bar with tb's open, leads, plugs and coil all working ok,
Could there be a problem with hydraulic tappets, ?
Any ideas welcome Cheers guys somebody always has the answers on here.
Be Lucky Mike.
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Daf
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| posted on 6/6/16 at 11:16 AM |
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What exactly do you mean by sucking? If you're getting the same compression across all 4 then the same amount of air must be going in. Problems
with tappets and valves would show up on a compression test.
Have you tried balancing the throttle bodies with a proper balancer - this makes a massive difference to the running of the car in my experience.
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Ugg10
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| posted on 6/6/16 at 12:10 PM |
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manifold, injector or connecting rubber air leak, have you pulled the plugs to see what colour they are or looked at exhaust header temperatures ?
---------------------------------------------------------------
1968 Ford Anglia 105e, 1.7 Zetec SE, Mk2 Escort Workd Cup front end, 5 link rear
Build Blog - http://Anglia1968.weebly.com
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MikeRJ
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| posted on 6/6/16 at 12:48 PM |
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quote:
Originally posted by Myke 2463
Compression on all 4 is 140 bar with tb's open, leads, plugs and coil all working ok,
140 bar would be impressive, hopefully you mean PSI 
As said, you need to clarify what you mean by "not sucking".
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chris
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| posted on 6/6/16 at 06:07 PM |
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I had the same problem when I was running bike carbs on a pinto I tried everything to cure it in the end changed the head gasket and that cured it
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