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Zenith 32IF........

D

Dou Dou

Enthusiast
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Hi All

just discovered that Dou Dou has the above carb.....anyone got any info/opinions on these - am told it has a freezer flowing manifold and exhaust too...certainly sounds fruity enough.

Asking coz have a lumpy idle I was looking into - see some comments on here ref this and vacuum hoses etc etc......mine seems to have a couple of 'tails' without hoses on at all let alone with valves in them.....hmmmmm.

Any suggestions welcome

ta

Dan
 
Not sure what you mean by a 'freezer flowing' manifold??? Lumpy iding can be caused by lots of things. What do you mean by 'tails'?? and 'valves'??

Maybe a few photos of the set-up showing the items in question would be useful.
 
Carb

sorry - meant fee flowing, and there are 2 joints on the carb that look like they ought to have hoses attached...the valve mention was just ref what I had read about blow by of a valve was sticking - will take snap and try to post it here..

Ta Dan
 
Dear R4 Enthosiansts,
teh Zenith 32 is known for loosing idle-jet screw and choke arm screw - both are recommended to fix with loctite e.g.
hose connection on the manifold side of the carburettor are for water-heating in winter. So if the car is normally not run at -15°C or below - these hoses can left un-attached -> lower consumption.
best regards Ingo
 
R4L said:
Dear R4 Enthosiansts,
teh Zenith 32 is known for loosing idle-jet screw and choke arm screw - both are recommended to fix with loctite e.g.
Click to expand...

After an afternoon spent at the side of a hot and sunny A16 I can confirm this to be very true, isn't that right Malcolm :)
 
The screw has a little 'o' ring that is supposed to keep it in place. When this hardens then the screw can disappear! Don't use the Loctite that permanently keeps a screw in place as it will need to be adjusted.
I never lost the screw on my 32IF as I bought a new 'o' ring and then put a smear of Hylomar on the threads.

If, as R4L implies you mean the hose connections on the base of the carb, then you need to have the R5 water pump and the correct hoses to ensure the manifold is heated.
 
Guys, one and all Thank You......managed to set mine up better this morn and it seems to have done the trick.......problem was actually finding the mixture screw.

Regards from Dou Dou
 
If you're going to be using it in the winter then the carb is likely to ice up if there is nothing available to heat the base of the carb or to supply warm air to the venturi.
 
Why cannot you just cut the heater hose and place a T to attach another hose going to the carb? If you have not the right water pump, I mean.
 
Apologies for resurrecting this old thread, but I have just converted my R4 to run a 32IF7 carb and so far all seems well. I did buy a seconded-hand R5 water pump with the water take-off to the carb but on attempting to remove the original pump I feared I was likely to shear off one of the bolts, they are only 6mm dia, and besides my pump is perfectly ok, so I left it well alone. Derek Flavell from Renospeed had suggested I tee into the heater pipes when I was chatting to him at a show back in the summer, so that is what I did. It works fine of course. I had rebuilt the carb with a service kit picked up in France and some parts I bought off Steve so it's in good nick now, now it's just down to fine tuning. By the way, the plastic tee-pieces came from a UK based firm called Advanced Fluid Solutions, they are based in Essex. The size I used was 18mmx10mmx18mm. Marigold is now ready for some more continental touring next year, bring it on!:D
Here are a few before, during and after photos.
 
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Looks good Brian - see you didn't hang about. I also like the T piece conversions too. The hot air take-off from the exhaust manifold is so vital with these carbs.

You'll be at Santa Pod next week;)
 
Hello Steve, yes I'm pleased with the way it's turned out, and it has made a noticeable difference to the cars' performance, and although I don't think I will win any "traffic-light grand-prix", the acceleration is very much improved. Top end? hmm I think that is better too. I noticed the main jet had 110 stamped on it, presumably 1.1mm, would it be an idea to fit a slightly bigger one do you think.
 
I used to wear out a set of front tyres every month doing the traffic light grand prix ;)

You may have trouble sourcing larger jets but worth trying some specialists. I cheated and bought a set of micro drills and opened up the jet by one increment until I got where I wanted to go. See how you get on with the performance first though :)
 
Hmm, funny you should mention tyres, I need some new rubber on the front anyway, then maybe I can take on the local oiks in their Saxos and Corsas. I've had a look on line for bigger jets, but no luck, so micro drill-bits it is if I feel the need for more power.:D
For now I will just get used to it as it is Steve as you suggest, but it certainly is a different car now.
 
Thank you for the info Steve. Yes I will leave the main-jet for now and just tweak as required, but I've just ordered a new toy, a gas-analyser, a bit of gear I've promised myself for some time, so that should help the tuning process.
 
Hi Steve, it's a DIY one from Gunson, yes I know it's a bit OTT but it will come in useful for other stuff we have in the fleet as well, and friends classics too.:)
 
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