SU carbs and auto choke help please

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PercyV8

Member
Posts
18
Location
Gloucestershire
Hi All

Has anyone any experience of a V8 SDI with SU carbs and an auto choke.

Having some problems starting in this weather but started fine this morning as milder, so thinking it might be my auto choke playing up? Looking for a diagram to understand how the auto choke works, it is blue and sits just on one carb.

Your help as always appreciated as no mechanic :)
 
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Hi Percy,

My SU's had manual choke so not experience of them.

From Googling, it appears that you have an FASD Autochoke system, if you google that are are quite a few helpful ideas.

Best of luck
 
Thanks again Rob, I have found plenty of info on google using FASD as a search and have something to go on now with diagrams and some ideas of how to fix. Although much of the advice is to change to a manual choke as less complicated which is understandable.

Pete
 
Hi Percy,

I have an old set of SU carbs with a manual choke on them. I see you are on Glos - if you fancy a drive down to Glastonbury you can have them FOC if you want to convert to manual
 
If it the ordinary spring/ coil bi-metal arrangement u have I have found that just a splash of oil on the operating shaft to the choke butterfly and the spring arrangement is all that's needed to get things working, I seemed to have to do that every year. Other auto chokes have a similar arangment.
 
Hi Percy,

I have an old set of SU carbs with a manual choke on them. I see you are on Glos - if you fancy a drive down to Glastonbury you can have them FOC if you want to convert to manual

Thanks Rob, really appreciate your offer and might just take you up on it, taking the auto choke apart this weekend as have found some good links on google with diagrams so looks promising, but I am thinking, simple is better as everything is basic on my Landy, so choke should be the same!
 
If it the ordinary spring/ coil bi-metal arrangement u have I have found that just a splash of oil on the operating shaft to the choke butterfly and the spring arrangement is all that's needed to get things working, I seemed to have to do that every year. Other auto chokes have a similar arangment.[/QUOTE
Thanks and appreciate the advice, yes have seen that on the Rover SDi web page so will be tackling this today so fingers crossed it sorts it.
 
Great news this morning, Percy is back up and running and purring well!

Managed to get into the auto choke and oiled the springs, but all seemed well so that didn't appear to be the problem.

Fortunately my neighbour Dick is rather handy mechanically and a Landy man to boot, so he helped me out and we moved onto checking the spark and it turned out we had a good spark from the solenoid, but not so good from the plug leads. So purchased new distributor cap and new set of plugs just be be sure and voila! So we think the fault was with the distributor cap as I understand they can have hairline cracks which are difficult to see with the naked eye.

Thanks for all your help and advice.

Until next time.
 
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