Advice really needed..Throttle sticking on..2.8 V6, auto, Weber 38dgas - Page 2
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  1. #11
    Off the Xmas card list kapri's Avatar
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    Re: Advice really needed..Throttle sticking on..2.8 V6, auto, Weber 38dgas

    Quote Originally Posted by Roadster RR View Post
    will check the earth staps for sure....amazing.

    does not have a kick down cable, just uses vacum.

    when you move throttle by hand its seems to move freely with or without engine running.

    You want to connect the lickdown then...if you think it's quick now a kickdown will have it hanging on longer in each gear,, it'll shift around 5000 as opposed to around 3500-4000 now .Best fix the sticky throttle first though

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  3. #12
    Official RnS Addict Roadster RR's Avatar
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    Re: Advice really needed..Throttle sticking on..2.8 V6, auto, Weber 38dgas

    Quote Originally Posted by kapri View Post
    You want to connect the lickdown then...if you think it's quick now a kickdown will have it hanging on longer in each gear,, it'll shift around 5000 as opposed to around 3500-4000 now .Best fix the sticky throttle first though
    Dont know why theres no kickdown, but now I know why she changes at 3500 to 4.

    I have 2 earth straps on the engine,
    one block to lower part of engine mount,(below the rubber)which is to the chassis. This appears intact and well connected.

    I also have one from the lower rocker cover bolt to mounting on lower bulkhead, the bulkhead end bolt is rusty and the strap is a little loose....dont know as yet where the bulkhead end goes and what its earthing purpose is .... on the rocker end the electronic ignition is also earthed.

    As this is a glass yorkshire bodied A, would the main battery earth have any relavence to this?

    thanks RR.
    Don't you think the Beach Boys are boss?

  4. #13
    Off the Xmas card list kapri's Avatar
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    Re: Advice really needed..Throttle sticking on..2.8 V6, auto, Weber 38dgas

    I'd clean up the rusty and lose one but it appears the other shoudl work well enough. Battey earth must be there or you wouldn't be starting. Looks like the earths can be ruled out.

    The kickdown will be a seperate 'kickdown only ' cable connected toa lever on the passengers side of the gearbox by where th egear selector connects.

    Check for any stray accelerator cable wires that may cause a lock up as they get pulled into the outer sheath.

    Can you take a photo of the carb and linkage set up ,it may help.

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    Official RnS Addict Roadster RR's Avatar
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    Re: Advice really needed..Throttle sticking on..2.8 V6, auto, Weber 38dgas

    thanks for any advice, heres a couple of pics.


    Don't you think the Beach Boys are boss?

  7. #15
    Off the Xmas card list kapri's Avatar
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    Re: Advice really needed..Throttle sticking on..2.8 V6, auto, Weber 38dgas

    Has this only started happening recently since you changed something over ? Have you done many miles in this at all ?

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    Official RnS Addict Roadster RR's Avatar
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    Re: Advice really needed..Throttle sticking on..2.8 V6, auto, Weber 38dgas

    Thinking about it the only thing Ive fiddled with in the last month is the choke fast idle.
    Ive turned the choke housing to the "right" to its max I think???

    I also have turned the fast idle screw in a fair bit (from its stock setting) to promote a faster choke idle of around 1500 to 2000 rpm....2000 is far to much I think anyway........(due too I have always had a choke that seemed to come off idle to quick)........Yesterday when the prob happened again the car started and idled at around 1600, at that idle it does take a couple of "firm pumps" to remove it from idle. The sticking throttle has happened 3 times now and has always happened approx 2 or 3 miles away from home......

    my question

    Due to my fiddlings...Is it possible for the fast idle screw to engage on the cam at a mediumish, throttle 2 or 3 mls from home while driving up hill and cause this problem? even if the car has been warming up fine for 10 mins or so before setting off.???

    The only way of stopping the sticking on throttle when driving is to pump it a few times firmly it seems, pulling back on the pedal makes no difference.
    Oddly this has twice now on the same bit of longish hill.
    Last edited by Roadster RR; 09-05-2010 at 14:38.
    Don't you think the Beach Boys are boss?

  9. #17
    Off the Xmas card list kapri's Avatar
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    Re: Advice really needed..Throttle sticking on..2.8 V6, auto, Weber 38dgas

    It does sound like the fast idle cam may be floating around a bit and getting stuck when you are at a set throttle position. From your description definetely sounds like choke related .

  10. #18
    Official RnS Addict Roadster RR's Avatar
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    Re: Advice really needed..Throttle sticking on..2.8 V6, auto, Weber 38dgas

    Quote Originally Posted by kapri View Post
    It does sound like the fast idle cam may be floating around a bit and getting stuck when you are at a set throttle position. From your description definetely sounds like choke related .
    Thanks kapri, its the only thng I can think of, that I have done.

    I disconected the new throttle cable from the carb again and it seemed fine. The carb seemed smooth also. I have also well oiled the linkages and the carb throttle.
    I have put the carb fast idle screw back to where it was originally and will do the choke setting also, will also clean the earth staps on the engine.

    one last question, on the water heated choke housing, do you turn it clockwise or anti clockwise to enrich or lean the choke/spring, the movement is very small from the centre mark. I had turned it clockwise fully...right or wrong?

    thanks again RR.
    Don't you think the Beach Boys are boss?

  11. #19
    Off the Xmas card list kapri's Avatar
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    Re: Advice really needed..Throttle sticking on..2.8 V6, auto, Weber 38dgas

    I can't remember! LOL Isn't there a (very) small = and - on the choke housing. I know one way will tighten the spring so making it take longer to wind off and the other loosens it so you may be able to feel the difference if there are no markings.

    I think it only moves about 20 mm max in either direction. I binned the one on my DGAS so can't check...sorry.

    Kev

  12. #20
    Official RnS Addict Roadster RR's Avatar
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    Re: Advice really needed..Throttle sticking on..2.8 V6, auto, Weber 38dgas

    Quote Originally Posted by kapri View Post
    I can't remember! LOL Isn't there a (very) small = and - on the choke housing. I know one way will tighten the spring so making it take longer to wind off and the other loosens it so you may be able to feel the difference if there are no markings.

    I think it only moves about 20 mm max in either direction. I binned the one on my DGAS so can't check...sorry.

    Kev
    On mine theres just a ... | | | ... so Im guessing clockwise tightens the spring for a longer choke, but as you not sure. Have searched net and cant seem to find an answer anywhere.
    So I will do the last couple of things on her and then fire her up.
    I feel logic says its something Ive done by advancing the fast idle to much.
    So I will have another test drive....with all things crossed, not a nice feeling with a stuck throttle on an auto.
    The last test drive friday I pushed the car hard on and off the throttle and it seemed fine, this time I will do a steady progressive throttle recreation and see how I go.
    cheers RR.
    Don't you think the Beach Boys are boss?

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