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Post by biffofo on Jul 20, 2015 19:53:07 GMT
apologies i posted this on the wrong board at firts
hello all Looking to convert my P5B to a man choke Talking to fellow owners at a show yesterday i gather i have two choices
1) a switch under the dash to turn the AED off ? 2) conversion kit to change to man chokes and usual pull out choke on dash kits from JD Wadham or Dave Green
so , is info above correct if so which is best/easiest way forward ?
many thanks biff
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mh007
Rover Fanatic
Posts: 116
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Post by mh007 on Jul 21, 2015 9:15:12 GMT
I've never heard of a switch to turn off the AED.
You used to be able to buy a manual choke conversion kit for the AED but I'm not sure if you can even get these anymore & you're not really eliminating the AED fully by doing this.
I was in the same situation & I've recently purchased a pair of later HIF44 SU's along with the inlet manifold (with the correct linkage etc & kickdown bracket)
I then ordered a rebuild kit from Burlen (SU main dealer)including a new pair of needles & have rebuilt the carbs ready to fit.
The HIF44's (you can also use HIF6's) are so much easier to tune & keep in tune.
They only require one choke cable to the right-hand carb (looking from the front of the car) whereas the HIS6's use a single cable going into a yoke to split them off into two separate cables.
By the time you've purchased all the linkage for the carbs & the choke cable kit, it becomes very expensive.
You'll also need a choke cable of course (universal ones are available & the original T-bar ones are expensive).
The other, more expensive option of course is a 4-barrel carb & manifold/linkage.
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Post by Phil Nottingham on Jul 21, 2015 17:38:07 GMT
Many put an AED cut-off instead of sorting out the AED properly which some have done - see SEARCH. I personally would bin it and convert to manual (have done so in fact on all our P5B's in the past)
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Post by petrolhead allan on Jul 22, 2015 7:09:16 GMT
I've never heard of a switch to turn off the AED.quote] Several years ago, I fitted a solenoid valve into the fuel supply to the AED, which permanently supplied a rich mixture. The valve is controlled from a switch fitted in place of the blanked-off ignition switch position on my 1971 coupe binnacle. (You could fit a switch anywhere you like, of course.) So, from cold, I switch on the solenoid valve, which allows petrol to the AED, and therefore a rich mixture for starting. After starting, a bit of a warm-up for a minute at most (accelerator depressed slightly) and the valve can be switched off. Downside - it's on or off, so you need to warm the car in neutral before trying to select a gear. Upside - it works and its far cheaper than fitting a manual choke kit.
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Post by johnwp5bcoupe on Jul 22, 2015 7:50:49 GMT
I've never heard of a switch to turn off the AED.quote] Several years ago, I fitted a solenoid valve into the fuel supply to the AED, which permanently supplied a rich mixture. The valve is controlled from a switch fitted in place of the blanked-off ignition switch position on my 1971 coupe binnacle. (You could fit a switch anywhere you like, of course.) So, from cold, I switch on the solenoid valve, which allows petrol to the AED, and therefore a rich mixture for starting. After starting, a bit of a warm-up for a minute at most (accelerator depressed slightly) and the valve can be switched off. Downside - it's on or off, so you need to warm the car in neutral before trying to select a gear. Upside - it works and its far cheaper than fitting a manual choke kit.
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Post by David on Jul 22, 2015 8:25:02 GMT
Twas I who wrote the article. I bought mine from a local (Bristol) SU specialist, who has since closed. They became part of Burlen Fuels and if my memory is correct it is the same one used on a MkII Jaguar. It worked extremely well with the car running much better and it also improved the mpg. Link: burlen.co.uk/
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Post by enigmas on Jul 22, 2015 8:52:21 GMT
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Post by biffofo on Jul 22, 2015 12:44:56 GMT
hello all
manythanks for thefeed back
based on comments here and elsewhere like to update this thread as follows.
1) switch to turn off AED , heard several no's on this idea 2) Burlen fuels no longer do any kit that fits the P5B , stopped a while ago 3) got a complete conversion kit from Wadhams for £115 , seemed cheaper than changing carbs
thanks for all help
biff
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Deleted
Deleted Member
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Post by Deleted on Jul 22, 2015 14:06:26 GMT
The only car I ever owned with an AED was a mk7 jag.It was hopeless,I had a long very steep drive and it would splutter and bang trying to get up it on a cold morning.I used to start the engine then leave it running while I made and eat my breakfast.Usually it would then climb out.
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mh007
Rover Fanatic
Posts: 116
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Post by mh007 on Jul 22, 2015 22:21:18 GMT
hello all manythanks for thefeed back based on comments here and elsewhere like to update this thread as follows. 1) switch to turn off AED , heard several no's on this idea 2) Burlen fuels no longer do any kit that fits the P5B , stopped a while ago 3) got a complete conversion kit from Wadhams for £115 , seemed cheaper than changing carbs thanks for all help biff Glad you've found a way around it. Does the kit from Burlen include all the mechanism etc to convert the HS6 carbs to manual choke & is it a single to double choke cable or just a single cable to operate the choke on just the one carb please ?
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Post by biffofo on Jul 23, 2015 7:32:40 GMT
hi ok the kit was from J R wadhams www.jrwadhams.co.uk/browse-p5-categories/fuel-systems?page=2Burlens dont do them anymore it acts on both carbs , there is a "thing" that splits the choke cable into 2 they are out of stock of the kit now , i got teh last one !! will report back as to how easy/hard fitting is and if it works biff
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Post by harvey on Jul 23, 2015 12:08:36 GMT
there is a "thing" that splits the choke cable into 2 they are out of stock of the kit now , i got teh last one !! I think those are the same units as fitted to the throttle cables of old British twin carb motorbikes.
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Post by biffofo on Jul 28, 2015 11:06:15 GMT
help required please guys can anyone send me any instructions on how to fit the manual choke kit ? i have purchased one from Wadhams but they do not have any instructions to share seems rover never did any so they dont see why they should !! very unhelpful really failing that any got a picture of a manual choke set up that i might be able to work from . I will be removing the AED completely when i do this , so if anyone wants to reserve it to have let me know . brian
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Post by oldabe on Aug 20, 2015 20:24:22 GMT
hi ok the kit was from J R wadhams www.jrwadhams.co.uk/browse-p5-categories/fuel-systems?page=2Burlens dont do them anymore it acts on both carbs , there is a "thing" that splits the choke cable into 2 they are out of stock of the kit now , i got teh last one !! will report back as to how easy/hard fitting is and if it works biff Thanks for the link. Looks like they are back in stock and I have ordered one. Again, if anyone has installation instructions or hints, we wonder if you could share. Not sure how long shipping will take to get it to the states, but I hope to be regularly driving the car within the next two weeks. abe
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Post by kiwip5b on Apr 27, 2018 4:17:33 GMT
What a pity this string peters out where it does! I have just purchased Wadham's P5B manual choke conversion kit and would love to know how to put it together (Wadham's are always a bit light on things like fitting instructions). Even a clear photo of a completed installation would be helpful. Many thanks
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Post by biffofo on Apr 27, 2018 7:12:23 GMT
hi will see if i can dig out the instructions and get some photos to you biff
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Post by Sam Bee on Apr 27, 2018 11:47:15 GMT
I agree that the HIF6 (or metric version HIF44) is a good option. I am about to convert my P5B. Simplest way is to find a manifold with HIF6 carbs and linkage attached from a scrapped P6B 3500 and transplant it - I have already purchased one (£120 the lot!). A thorough renovation of the carbs before installing is wise. A new operating arm has to be provided for the P5B throttle cable to be attached and I shall use a P6 V8 manual choke cable to the L/H carb and fit a new P6 V8 kick-down cable. A full write up of the operating linkage, overhaul and setting up for the HIF6 on a Rover V8 is found in the P6 workshop manuel. And it is all pukka Rover!!
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Post by harvey on Apr 27, 2018 12:04:04 GMT
I shall use a P6 V8 manual choke cable to the L/H carb I can't remember which carb I ran it to, but I used the original P5B cable with the "T" handle to keep things looking nice and original when I did the same conversion to MrsH's P5B years ago.
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Post by petervdvelde on Apr 27, 2018 12:40:14 GMT
not very detailed but gives a rough idea
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Post by johnwp5bcoupe on Apr 27, 2018 17:38:28 GMT
This shows one side
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Post by Sam Bee on Apr 27, 2018 21:04:35 GMT
John, that is the HS6. Here is a photo of HIF6s on my P6B. The kickdown cable attachment is at the rear end of the shaft, out of sight botton right. Attachment DeletedAttachments:
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Post by Sam Bee on Apr 27, 2018 21:13:24 GMT
Peter, thanks for sight of that. I note you have the P5 twin choke cable to both carbs, unlike the P6 installation just to the left one. Or is that just for visual effect or have you deleted the connecting link rod at rear of the carbs?
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Post by petervdvelde on Apr 27, 2018 22:20:31 GMT
Peter, thanks for sight of that. I note you have the P5 twin choke cable to both carbs, unlike the P6 installation just to the left one. Or is that just for visual effect or have you deleted the connecting link rod at rear of the carbs? Its the twin choke cable to both carbs. If someone is after the splitter (the black device that splits one cable into 2), a lot of classic motorbikes use these also for the throttle cable and choke. The classic BMW boxers, the Ducati bevel drives and the Laverda 750. These are made out of steel or aluminium so will last a bit better. Peter
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Post by kiwip5b on Apr 27, 2018 22:25:09 GMT
Thanks for the diagram and photo, I now have an idea where things go.
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Post by petervdvelde on Apr 27, 2018 23:09:41 GMT
Thanks for the diagram and photo, I now have an idea where things go. If you need more info or pictures, let me know Peter
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