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31
Sales & Auctions / Re: Ligier for Sale
« Last Post by Barry on December 31, 2017, 09:57:38 AM »
I spent a few more hours trying to find a way to figure out which engine / parts if engines that I have.
One local expert said that whatever it is, it never made it to the U.S., but I am not sure if the shrouding threw him off
At this time it seems most likely to be AV7  based, as the AV 10 did not come out until the nineties.
Too bad I don't have an engine number or reference chart yet.
It could also be helpful if I could see a picture of the bottom of a known  engine type for reference, as the rest of the engine is shrouded from view.

Does the 13 mm size of the intake that you mentioned refer to our the i.d., or the o.d. of the intake pipe?
With the help of yourself and one or two others , I believe that we will solve the mystery of what  lies shrouded in a few more days, and then be on a more solid foundation as to what ought to be considered next.

Too bad  Jonathan no longer visits this site, as he is quite the expert on French mopeds by now.
May try to find a way to contact him also.

13mm is the inlet size.  the air hole trough the carb.
I doubt it is an AV7.  JS4 was fitted with a VO 14 (99Z) engine.

AV7
http://www.1977mopeds.com/product-p/774910.htm

AV10
http://www.1977mopeds.com/Motobecane-AV10-Crate-Motor-p/70289.htm

99Z
http://www.ebay.fr/itm/MOTOBECANE-SPECIALE-99Z-SP-SP-99-Z-MOTEUR-ENGINE-/141612675275




32
Invalid Carriages & other related conveyances / Re: Very early Model 70 restoration
« Last Post by HubNut on December 30, 2017, 10:23:49 PM »
Master cylinder says Girling 625, so I'll get one of those ordered as well.

Replaced the fuel lines today. Line had rotted on the tank connector. No filter to be found anywhere. All-new lines, apart from the last bit of plastic in the engine bay, which still seemed in good order. Included a large in-line filter on the pipe run.

Also discovered that the indicator relay is missing, on both cars annoyingly. The AC is also missing half the carburettor, though I had the engine spinning on the Dynastart earlier.

Invacar has had half an engine service, but the oil filter is the earlier cartridge type, and the new filter came with no seals. The old ones are not oiltight, so while I await new seals and brake parts, progress has slowed somewhat.
33
Sales & Auctions / Re: Ligier for Sale
« Last Post by steven mandell on December 30, 2017, 07:34:55 PM »
 In the immortal words of the late Gomer Pyle...Suprise, suprise, suprise!
I just looked at the rear to front view of the engine for the first time on my laptop instead of my cell phone, and quickly realized that it is not a 4 bolt Port being covered by a two bolt intake manifold.
It is instead merely a gasket for a 4 bolt manifold sandwiched between 2 bolt  pieces.
Makes more sense now, because with all that oil fume condensate of grease coating everything, it really did not seem likely to me that a cinder swap out had occurred.

So probably a bone stock, if not a bit tired motor.
So at least I think that we now know what I've got to work with here.
34
Sales & Auctions / Re: Ligier for Sale
« Last Post by steven mandell on December 30, 2017, 01:04:43 PM »
I spent a few more hours trying to find a way to figure out which engine / parts if engines that I have.
One local expert said that whatever it is, it never made it to the U.S., but I am not sure if the shrouding threw him off
At this time it seems most likely to be AV7  based, as the AV 10 did not come out until the nineties.
Too bad I don't have an engine number or reference chart yet.
It could also be helpful if I could see a picture of the bottom of a known  engine type for reference, as the rest of the engine is shrouded from view.

Does the 13 mm size of the intake that you mentioned refer to our the i.d., or the o.d. of the intake pipe?
With the help of yourself and one or two others , I believe that we will solve the mystery of what  lies shrouded in a few more days, and then be on a more solid foundation as to what ought to be considered next.

Too bad  Jonathan no longer visits this site, as he is quite the expert on French mopeds by now.
May try to find a way to contact him also.
35
Unusual Microcar Discussion / Re: POWERDRIVE
« Last Post by powerdrive on December 30, 2017, 10:16:54 AM »
Thanks for that Malcolm . I had been trying to find a way to do that .

 
36
Unusual Microcar Discussion / Re: POWERDRIVE
« Last Post by Chris Thomas on December 30, 2017, 10:13:41 AM »
Thanks Malcolm

That is much more accessible to all of us.

Chris Thomas
37
Unusual Microcar Discussion / Re: POWERDRIVE
« Last Post by Rusty Chrome (Malcolm Parker) on December 30, 2017, 01:41:24 AM »
Thanks Chris, that's why I said it's a Facebook video! I've now stuck it onto the website gallery page as well for the benefit of those who don't wish to subscribe to the demon Facebook.

http://national-microcar-rally.co.uk/pics2017/powerdrive.html
38
Unusual Microcar Discussion / Re: POWERDRIVE
« Last Post by Chris Thomas on December 29, 2017, 04:41:03 PM »
Dear Malcolm

The link from the NMR web site is no better as the facebook log in screen comes up and blocks the video.

Chris Thomas
39
Sales & Auctions / Re: Ligier for Sale
« Last Post by Barry on December 29, 2017, 03:09:53 PM »
Looks like you might have a two stud manifold bolted through a four stud reed valve.  The barrel may be wrong.  The engine may be wrong.  Either that or a four stud reed valve has been fitted to a two stud manuifold and barrel.  It may or may not not have an AD13 carb - swapped at some point.

I think that my Super  Comtesse has a two stud set up on a 99z engine with reed valve and compression piston.
I have some photos of some spare parts that came with the Super Comtesse.
Yiu can see how big the cooling fins are compared to a normal moped (moped head shown).  All tuning kits will be designed for mopeds with the engine exposed to lots of cooling air.

You need to seek the advice of a mobylette expert.

http://mobylette.proboards.com

As far as I know the AV10 engine is the most sort after and tunable with all sorts of goodies available to boost power.
The VO 14 (99Z) engine is already powerful but I was told that it is very difficult to tune as the primary compression piston complicates things.

It would be interesting to know the diameter of your inlet manifold.  The 99z engine uses a 13mm carb (just over 1/2" to you :)  :).

You can easily recognise if it has the lower piston because there is a big bulge in the lower crank case.

People do tune moby engines and often fit Delortos up to 19mm but you are on your own with that project.  I can't help.
Just as important as the carb will be a special high compression 'squish' head and some high octane fuel mix.
40
Unusual Microcar Discussion / Re: POWERDRIVE
« Last Post by Rusty Chrome (Malcolm Parker) on December 29, 2017, 02:29:28 PM »
Cheers! The Facebook video is also linked on the National Microcar Rally website along with a couple of photos of the Powerdrive in the Grasmere gallery.

http://national-microcar-rally.co.uk/nmcr-history.html

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