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casamolino 18th October 2020 18:31

Good evening Mick , apologies if the following is a complete waist of time but do you have an advance retard system on your engine? could it be malfunctioning enough to cause your problem , all the best with the fault finding , Geoff .

Mick O'Malley 19th October 2020 06:58

Another possibility...
Thanks for suggestions and encouragement chaps, most welcome :).

Yesterday, whilst vegetating following a nasty turn standing up too quickly after a session under the Monaco, I thought back to previous problems and decided that the pesky dire frag'ems might be responsible. I've read that the alcohol in E5 unleaded can attack all sorts of old-skool components, and the symptoms could well be explained by tiny holes in the above. I immediately hit eBay and ordered replacements.

Watch this (hopeful) space.

Regards, Mick

peterux 19th October 2020 18:18

Another thing I would try is a new distributor cap and rotor arm.

Keep plugging away and you'll find it :happy:

Mick O'Malley 23rd October 2020 06:26

Dire frag'ems? Nope :(
Fitted the new diaphragms yesterday - no change. Had a good look at the distributor cap and rotor arm (Thanks peterux): contacts clean, no signs of tracking. However, two of the plug leads fell out of the cap under gravity whilst it was inverted. I simply couldn't be fagged to remedy this and test drive again after the earlier disappointment.

The latest tranche of prospective buyers (read 'dreamers') are asking the same tedious old questions. They all want a concours d'elegance winner for home-built money.


Regards, Mick

IanA 6th November 2020 22:00

The suspense to know the limp-mode cure is rivalling that of the USA election result, Mick !!!

Mick O'Malley 7th November 2020 05:48

The only work I've done on her lately was a wash and photo' session last week for yet another prospective buyer (dreamer?). My focus (weather permitting) has been on the Monaco. A few of the coming days are forecast dry so I may get stuck in if Monaco tasks permit...

Regards, Mick

Dpaz 9th November 2020 19:35

Has anyone sugested looking at the bob weights in the dizzy? My Marlin ran realy cr#p untill the springs were replaced on the bob weights. That fixed it!

Mick O'Malley 13th November 2020 06:37

In yesterday's sunshine I had another crack at the mystery fault, concentrating on the distributor (thanks Dpaz). I reset the points, even though the gap was spot on, oiled and greased as necessary, remade all the lead connections and took her out for a test drive. No change. The symptoms are consistent - for the first 30/seconds/100 metres she pulls like a train on all six then goes gutless, as though a switch has been flicked, exactly what happened on my way back from Specials day (10 August - aaaaargh!).

To sum up, it's not the coil, it's not the carbs, it's not the condenser, it's not the points, it's not the leads and it's not the cap.

All and any further suggestions will be gratefully accepted.

Regards, Mick

Jaguartvr 13th November 2020 06:51

Ballast resistor? Loose earth? Fuel pump filter, not allowing enough fuel through?

After the 30 second run, does the car go back to normal running after it has been turned off and then back on?

If you leave the car running on a fast idle, does it loose power after 30 seconds or is it only when being driven?

When it suffers from the lack of power, what difference do you get pulling the plug leads off one at a time?
If you take the plugs out as soon as it has a loss of power, what are they like? Clean, sooty or wet?

Mister Towed 13th November 2020 08:27

Blocked breather on the fuel cap?

IanA 13th November 2020 11:33

I had a TVR once that sprayed water onto the distributor from a leaky radiator seam. I blamed the misfire on some cheap petrol bought previously. The leak wasn't apparent with the engine stopped.
I think that one of the original Crypton analyser units would solve this- they measured all sorts of engine parameters and could even diagnose single cylinder problems.
Without breathing too deeply, when in limp mode, does the exhaust smell of unburnt fuel? For a fuel delivery problem- do you have any transparent pipe, or a clear filter in the fuel line?

Jaguartvr 13th November 2020 12:35

A blocked breather on the fuel cap wouldn't cause a vacuum after just a 30 second run but I think you are right, it is probably fuel related.
I would check the fuel pump, a weak or porous diaphragm could cause a lack of fuel. I would also try and put an airline on the fuel pipe and blow air back into the tank to make sure there isn't a blockage.
You could fit a small temporary fuel tank under the bonnet and run the car just using the throttle linkage to see if it drops power, if it doesn't I would fit a new fuel pump, they are not very expensive.

Mitchelkitman 13th November 2020 16:32

Flexi fuel pipe collapse?

Mick O'Malley 8th January 2021 13:20

Bye Bye Baby....
At long last a purchaser was found for the A352, or more correctly, he found me through the offices of the Tribute Automotive Owners Group on FB, with special thanks to Belinda Jane Wednesday who bumped my picture post at a serendipitous moment :).

A collector in The Netherlands bought her. I first had my spiffing custom registration number put on retention which enabled me to knock a couple of grand off my asking price. The buyer's chum, who's the proprietor of MEV, came and collected her on his behalf, transporting her to the ferry port on Dec. 19th sporting her replacement 'D' suffix reg.

Very sad to see her go, but as I've previously mentioned, yet another winter (her fifth) under a soggy cover outside wouldn't have done her any favours.

I transferred the insurance to the Monaco (outrageous charge of more than half the original premium for the remaining eight months) but haven't been out in her yet due to atrocious weather.

Regards, Mick

Lucky@LeMans 8th January 2021 18:59

Did you ever get to the bottom of the engine cutting out ? I'm sure it must have been something silly !

Shouldn't cost much to notify your insurers of a change of vehicle, normally around £25 unless you are upgrading to a higher performance, more expensive car.

Mister Towed 8th January 2021 22:04

Congratulations on the sale and good luck with your first trip out in the Monaco.

Mick O'Malley 10th January 2021 08:21


Originally Posted by Lucky@LeMans (Post 105627)
Did you ever get to the bottom of the engine cutting out ? I'm sure it must have been something silly !

It wasn't cutting out, just going into a sort of limp mode. With hindsight, I'm certain that one of the CD175's pistons was sticking. The purchaser had read the blog, so it was a warts and all sale. A man of his calibre shouldn't find sorting it a problem


Originally Posted by Lucky@LeMans (Post 105627)
Shouldn't cost much to notify your insurers of a change of vehicle, normally around £25 unless you are upgrading to a higher performance, more expensive car.

It's a cheaper car with lower performance. Insurance brokers are latter day robber barons/highwaymen.

Regards, Mick

Lucky@LeMans 10th January 2021 09:22

I would contest any excessive fee for a change of vehicle under those circumstances. Who are you with at the moment ? Name and shame them !!

IanA 10th January 2021 15:08


Originally Posted by Lucky@LeMans (Post 105635)
I would contest any excessive fee for a change of vehicle under those circumstances. Who are you with at the moment ? Name and shame them !!

If ever I have to transfer an insurance and I don't get a discount on the charges, I always tell the agent not to bother sending me a renewal notice at the end of the term.

Mick O'Malley 11th January 2021 07:15


Originally Posted by Lucky@LeMans
Name and shame them !!

Adrian Flux. I've been with them since '86, but had a ten year break from '99 to '09 during which time I only rode bikes. When I finally cracked and got a normal car in '17 (a Micra), they said my Kit Car no claims (aggregate 21 years) weren't applicable and I had to start again, despite having had only one claim ('92 rear-ender in an Escort MkII) in over 50 years!

I simply can't be fagged with jobsworths "Company policy, blah blah blah" and would rather stump up than have to jump through hoops.

Regards, Mick

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