MatraSport Forum

Each model => Bagheera => Topic started by: muccax on January 28, 2011, 11:36:32 pm



Title: i need 2 X 36 weber dcnf ...can anybody help me
Post by: muccax on January 28, 2011, 11:36:32 pm
hi
i would like to try a set of 36 dcnf on my 1.6 murena ,,,,
not for the horse power ,,, but for the look of it :-)
can anybody help me
all the best
otto


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: andyowl on January 29, 2011, 09:43:30 am
We are about to remove a pair from a Bagheera Jubillee model. Condition unknown but the manifold is there too.

Problem: They are in Southern England and I don't have time to remove them for you for about 4 weeks. Would you like to come and take them off yourself?

Send me a message if you are interested.

Andy Owler


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: muccax on February 23, 2011, 11:00:50 pm
hi andy
and so sad to hear about you loss ,,,,,  :(
and can understand that time is touff right now



but do you have time to remove the carbs now ?
if not i can wait  :)
all the best
otto


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: andyowl on April 15, 2011, 09:17:52 pm
After such a long time, please find attached the pictures of the parts that I can now send to you.

No extra charge for the extra parts as my "thank you" for being so patient.

When I have kept my promise to you I can start to contribute to the Forum again.

Best wishes,

Andy Owler
(Class winner, Dimanche Sprint Sunday April 10th!)



Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: muccax on April 18, 2011, 03:48:35 pm
hi andy
and thank you very much ,,,,, you are a great guy  ;D ;D ;D
thumbs up ,,,,  :) :) :) for winning you class  ;) ;) ;)
all the best
otto
i can pay you with paypal just send me your email adresse


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: andyowl on April 18, 2011, 08:17:03 pm
OK. I will send the whole package tomorrow and let you know the total.

I will phone you with my email address.

Andy


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: muccax on April 28, 2011, 06:09:43 pm
hi andy
thank you very much ,,,,, you made me a happy guy ,,,
very very happy with the carbs  ;D ;D ;D ;D
and you a real nice guy ,,,, a real stand up guy ,,,, ;D ;D ;D
all the best
otto





Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: andyowl on April 28, 2011, 07:54:03 pm
You are welcome!

Sprinting at Goodwood racing circuit on Saturday!

Andy


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: Titus on April 28, 2011, 08:07:58 pm
Hi Otto,

Here are the pics of my 36dcnfs fitted to my 1.6. I started with main jet system 130-F36-170. But now am on 150-F36-240 which works much better. This is work in progress just to get the carbs running ok until I fit a new engine with Rallye 2 cam.


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: Spyros on April 29, 2011, 08:50:35 am
This is quite shinny.  :)

What is this kind of fabric arround the hose coming from the bottom of the engine ?
Also, what is the purpose of the little piece of hose connecting the carbs depressions ?


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: Anders Dinsen on April 29, 2011, 01:16:25 pm
NICE!  ;D


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: muccax on April 30, 2011, 02:13:32 pm
hi
they look great ,,,,,, what did you do to make the carbs shine like that ??
a friend of mine will make  a air filter box in steel ....dont like like the plastic airfilter box  ,,, i hope it will look at good as yours  :P :P
what do you think about 2 carbs ,,,,, does it work well ??
all the best
otto



Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: Titus on April 30, 2011, 11:47:08 pm
Spyros: The water hose from the right side of the engine is just a flexible hose, nothing special. The little clear pipes on the carbs are just dust covers. They serve no purpose other than that. Those connections are for a carb calibrating tool.

Otto: The twin carbs are a huge improvement if you don't mind the engine roaring and a little loss in fuel consumption. My old engine has bad compression but still gets 99bhp with 170-F36-130. I'm now running 240-F36-150 and *******! Can't wait to test it on the rollers. I need to sort the idle circuit as it has a mind of its own at the moment. I haven't noticed a huge difference in fuel consumption but is surely down a bit.

The air top box is from a Series 1 Bagheera. I used an air filter fitted bottom right. I connected the rocker cover breather using the same green 'frog' by tapping into the bottom of the air filter box, see pics. You could use an oil catch tank however.

I polished the carbs myself using a drill and mop but had to give up on the manifold and top box so had a pro do them for 50 Euro.


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: Spyros on May 01, 2011, 04:05:55 pm
Nice work Titus

Those connections are for a carb calibrating tool.

I knew and was just wondering why  ;)

By the way, on my Bagheeras, I'm now also converting to inox braided fuel hoses.
The advantage is that I don't risk damages with these animals anymore :
(http://users.skynet.be/the.fly/htm/images/Martre.jpg)

Keep us informed of your power


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: muccax on May 06, 2011, 04:27:35 pm
hi
got the carbs on the car today ,,,,, ;D ;D ;D ;D ;D ;D ;D ;D
they sound great  ;) ;) ;)  wow wow
but they need a fine tuning  :) :)
but i am very pleased with the result so far ,,,,,
dont understand why the didnt make the 1.6 with 2 carbs from the start  :D :D :D
all the best
otto


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: Titus on May 06, 2011, 06:26:25 pm
I'm guessing that Matra fitted the single carb for cost reasons.

Otto, What main jet system are you running and is your cam standard?

Also what are your idle jets? Mine are 47s but I have a set of 50s to try this weekend. I'm having problems with the idle and starting needs the throttle pumping a lot.


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: andyowl on May 07, 2011, 03:53:44 pm
Is the cold start cable moving the lever on the rear face of the carb? Maybe the "cold starting" jets need cleaning?

Andy


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: Titus on May 08, 2011, 07:53:35 pm
I've cleaned the 'cold start' jets a couple of times and found in the first clean a bit of dirt in the ones with the o ring tab. That clean made things much better but still not easy to start from cold. I haven't looked into changing this part of the set up yet. A couple of dabs on the trottle before firing helps and then choke on half gets it going. But still lumpy.

Today I fitted 50 idle jets to replace the 47s. Good result. A little choke needed at first but very quickly no need for any choke. The 47s needed choke until upto temp. The engine has not died at all today but I will need more cold starts to say this is correct. I may have problems with the choke mechanism. Roy advised me to look at the flats and little cogs which I need to do. I put this off today because I couldn't resist a full throttle burn up around the Cotswold country roads. Also with the 50 idle jets the car runs easily and quitely in low gears. But put your foot down and all hell breaks loose. I dread to think what will happen when the new Simca Rallye 2 fast cam goes in. These twin 36DCNFs are definately staying in my car.


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: Titus on May 08, 2011, 08:33:20 pm
Otto,

How are you connecting the rocker cover breather? Any photos? I'm wondering if a catch tank is better than the way I've done it by taking it back into the carbs. I still don't know how the Bagheera did this exactly but my way seems to  be working.


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: andyowl on May 08, 2011, 09:25:58 pm
....I still don't know how the Bagheera did this exactly but my way seems to  be working....

The Bagheera oil vapour outlet on the top of the rocker box has a pipe leading to the air inlet system between the air filter and the carb inlet. I did the same thing on the supercharger system and it works well. An oil catch tank is only necessary if you cannot send the vapour back into the engine to be consumed. Problems with a catch tank are extra weight and complication and the need, maybe, to empty it.


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: Titus on May 08, 2011, 09:44:14 pm
Thanks Andy,

I tried an oil catch tank (see pic) but decided the other way was better. I'm still to see or remember a Bagheera with the system you state. Marion will be at Prescott in her featured Practical Classics car refered to here in another post  to show me if she has the twin carbs but I can't remember if her car has the twin set up.

Will you be sprinting the hill at Prescott this year? If so, see you there.


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: andyowl on May 09, 2011, 09:44:42 am
....From Titus...Will you be sprinting the hill at Prescott this year?

I put in my entry months ago and chased them yesterday. It seems that they do not send out acknowledgements until the closing date for entries.

I presume they will exclude any deemed "unsuitable" but I think they will let me in as they have twice before.

Will you be entering or exhibiting at Prescott?

Andy


Title: Re: i need 2 X 36 weber dcnf ...can anybody help me
Post by: Titus on May 10, 2011, 07:40:18 pm
I'll be there for both days with the Murena and hopefully my Rancho as well. I haven't had the time or money to get a licence to compete. Also I would worry about crashing my one and only. I'll have to wait for better times to buy a sprinter! That said, I'm off to Mallory Park in a couple of weeks time with the Simca Club for a track day. I'll be removing my good light lenses for that one, just in case.