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Aug 24th, 2023
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Joined: Dec 2017
Posts: 2,041 Likes: 71
Talk Morgan Expert
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Talk Morgan Expert
Joined: Dec 2017
Posts: 2,041 Likes: 71 |
Pleased that you appear to have resolved the issue, however I do have some thoughts. From your description of the setting of the base idle the blanking cap that covers the adjuster seems to have been removed suggesting someone altered the base idle previously which begs the question why? I assume your idle was running low before you made the adjustment? Have you checked the condition of the Spark plugs? I would also make sure the timing is correct. The thought is that adjusting the base idle is covering up another issue.
Bruce
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice)
2013 M3W (Olga)
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Joined: Feb 2020
Posts: 584 Likes: 21
Talk Morgan Regular
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Talk Morgan Regular
Joined: Feb 2020
Posts: 584 Likes: 21 |
Pleased that you appear to have resolved the issue, however I do have some thoughts. From your description of the setting of the base idle the blanking cap that covers the adjuster seems to have been removed suggesting someone altered the base idle previously which begs the question why? I assume your idle was running low before you made the adjustment? Have you checked the condition of the Spark plugs? I would also make sure the timing is correct. The thought is that adjusting the base idle is covering up another issue. Glad to see it was straightforward and presumably set on the tacho as opposed roverguage? Always worth checking plug condition from time to time, but its not surprising to see idle settings may have been adjusted on 20-30 yr old car engines.
"DOT" 35th Anniversary Edition Plus 8- family owned from new. Rolls Royce Pewter.
06 Saab 93
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Joined: Sep 2016
Posts: 1,384 Likes: 56
Has a lot to Say!
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Has a lot to Say!
Joined: Sep 2016
Posts: 1,384 Likes: 56 |
Very simple to do.
Locate the Allen bolt adjuster on the top of the throttle body.
Get the car warm then whilst on tickover clamp the hose on the right that goes from the throttle body to the plenium chamber.
At this stage the car might cut out, like mine barely idle, or if it sits nicely at 600rpm it’s ok.
If you need to adjust make sure you have a pen and paper to note your adjustments so that if it all goes wrong you can return to original setting.
I used a T handle Allen so I could accurately measure half turns which to open the air screw is anti-clockwise. Mine was three half turns.
Apparently you need to watch for the fan kicking in as this affects the rpm when you are trying to set it.
Hope that makes sense. this one I assume? ![[Linked Image]](https://www.tm-img.com/images/2021/05/30/D0AA5DB3-6E7A-48F3-AA60-3C82AB4EC7CD.jpg)
2012 Plus 4 in Sport Green. Much comfier than the Plus 8!
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Joined: May 2010
Posts: 49
Just Getting Started
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OP
Just Getting Started
Joined: May 2010
Posts: 49 |
thats the one, and its the pipe directly by your finger.
1995 Plus 8
1984 4/4 4 Seater (prev)
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Joined: Sep 2016
Posts: 1,384 Likes: 56
Has a lot to Say!
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Has a lot to Say!
Joined: Sep 2016
Posts: 1,384 Likes: 56 |
thats the one, and its the pipe directly by your finger. Cheers
2012 Plus 4 in Sport Green. Much comfier than the Plus 8!
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