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Post by ronnie on Oct 20, 2010 21:40:32 GMT 2
Hi Ventz
Unfortunatly it is a carb model, but I will sort out the idle problem. I have not put the electric pump under the bonnet as I already know of the heat problem.
Ronnie
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Post by Charles on Oct 20, 2010 22:17:02 GMT 2
Hi Ronnie
Here by us is a couple of Nissan 1400 bakkies running with aircons so I cant see why you would have any serious problems.
Charles
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Post by danie on Oct 21, 2010 6:01:10 GMT 2
Hi Ronnie
Did you also experience slow idling problems with Ari's Lada when it was new ?
To my mind slow idling like that could cause a drop in engine oil pressure , and the engine oil pump will not be able to supply enough volume, and pressure, for proper engine lubrication.
This problem could easily be avoided just by switching the aircon off when idling - as you have mentioned.
Perhaps Ventz could confirm , or give a better technical explanation what the real problem is with aircons, fitted to carb models.
Regards
Danie
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Post by marius on Oct 21, 2010 8:57:59 GMT 2
Hi Ronnie I know absalutely squat about things like aircons etc - but I would advice that if the oil presure problem persist you should - sadly - remove the aircon However I hope you will find a fix soon - good luck Regards Marius
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Post by marius on Oct 21, 2010 9:07:23 GMT 2
Hi Comrade...just to put the smile back on your face... ;D Attachments:
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Post by ronnie on Oct 21, 2010 19:11:02 GMT 2
Hi All Only had time today to fit the micro SW to avoid the low revs at idle. Works fine until I get a solenoid to increase the revs when the compressor is running. You can see the switch in the photo. Ronnie Attachments:
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Post by ronnie on Oct 21, 2010 19:46:47 GMT 2
Hi Danie
Looking at the reply from Ventz you may still have problems with the supercharger as your Lada is also carb. You may only have a brief dip in revs as the Supercharger cuts in and starts boosting. Even my twin electric fans drops the revs by 200rpm. I don`t remember having the revs drop in Ari`s Lada but again it was a long time ago. It is easy to correct this problem once you have the parts.
Ronnie
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Post by ronnie on Oct 21, 2010 19:52:14 GMT 2
Hi Marius
You learn fast when you need to. You will see from my other post I have put in a micro sw to cut out the compressor, this solves the problem for the time being.
I have been having grief on Locsa all day nothing would load so I eventually gave up. Even now I am still having problems. Are you having the same?
Ronnie
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spikes
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Post by spikes on Oct 21, 2010 19:58:15 GMT 2
Hi Ronnie Great work on the aicon. I do hope you will find a solution to the oil pressure drop Regards Spikes
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Post by spikes on Oct 21, 2010 20:01:34 GMT 2
Hi Ronnie I don't thiink the slow or no loading was only on the LOCSA site. Seems that Telkom is upgrading the RSA network and they may have dropped the ball again Rgds Spikes
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Post by marius on Oct 21, 2010 22:23:32 GMT 2
Hi Ronnie Looks like you are getting sorted. When things get hectic on the LOCSA site I get a message that the server is too buzy and should try again in 30secs. It happens every now and then BUT I don't mind - it is a good thing ;D Fortunately I am not with Telkom Regards Marius
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Post by ronnie on Oct 22, 2010 9:12:21 GMT 2
Hi Marius
Air con more or less finished just small things to attend to. Yesterday I could not get on to Locsa easily and once on could get nowhere easily. It was like that all day, but seams OK today. I am with Vodacom and it was Locsa only.
Ronnie
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Hercules
Veteran Niva Petrol Head
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Post by Hercules on Oct 22, 2010 15:47:33 GMT 2
Hi Ronnie.
Do not feel alone. I had the same trouble yesterday and eventully just got out. I am with iBurst.
Regards.
Hercules
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Ventzel
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Post by Ventzel on Oct 22, 2010 22:39:50 GMT 2
Hi Ronnie,
I'll be curious how this switch will work. But I'm sceptical about it. It will switch off the aircon when the engine idle. Imagine your vehicle is in city heavy traffic - the aircon compressor will get crazy with switching ON/OFF every few seconds. And that's the time when you need the aircon more then ever; the heat is much more inside when the car is stationary then with full speed.
All coments above that the oil pressure gets low with swithing ON the aircon and the engine starts to shake is the naked truth (not for fuel inj. engines). I'm not very familiar with the aircons. Actually I haven't seen car aircon before my moving to Africa 14 years ago and I avoid to touch aircons. All of you are more experts than me.
But I think there is another simpler device. I've seen it in some Ladas. It is vacuum valve with diaphragm and pushrod, similar to your EGR valve on the Lada exhaust mnifold but smaller. It was fitted close to the accelerator cable end and connected to the intake manifold. When the vacuum into intake manifold gets low, i.e. with engine idling, the pushrod moves sligtly forward and does not allow the accelerator cable + it's bracket to close completely the throttle even with the gas pedal released. In this case the aircon still works but the engine keeps steady revolutions. I presume this valve is standard spare part in every common aircon workshop.
Or use the easyer way - adjust your carb idle speed ~1000 rpm. With warm engine and all elements of the drive train mechanism adjusted properly, your idlig speed should be ~800 rpm. Make it 200 rpm more and when the aircon works and the revolutions drop, you still will be into the range.
Yes, the aircon is fuel thirsty, no doubt. But if you want an extra comfort, pay the price.
What about the electrical petrol pumps, all cars that I know with such a pumps have been in breakdowns. Somethimes to crazy connections as well. I remember a Lada which I towed to my place - the idiots were connected the pump to the wiper mechanism wire.
If you can manage to save your original mechanical petrol pump, most of your problems are sorted out. The petrol pump is the most reliable device in our vehicles. In my practice I've replaced petrol pump only once - and it was not faulty, just the diaphragm was leaking slightly and to save time and efforts, I replaced the pump as a unit. A, and I sold one loose diaphragm to one gentlemen in Tiger Valley. That's all my activities about the fuel supply. I've got a full box with new pumps that I do believe I'll never sell them.
Unfortunately the pump should be removed to make a space for the aircon compressor.
But there is exception, there is always exceptoins:
As I undersood, Ronnie - you are from Pennington. In January this year I sold a Lada to one resident there - Mr. Johan Smith, I'm sure you know him. The car had plenty extras, incl. aircon and it was carburettor Lada, but.... it had an unique compressor brackets which allow to save the original petrol pump. If you are interesting - simply visit him and copy the design; you wont regret.
Rgds Ventz
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Post by danie on Oct 23, 2010 7:51:34 GMT 2
Hi Ventz Thanks for this info. For the first time ever (on the Locsa website at least) the real problem with aircons on Ladas has now been revealed - insufficient oil lubrication on (carb) engines , due to low RPM's at idling speed !I am sure between Ronnie and yourself, Ronnie will be able to come up with a perfect solution to solve this problem - then we all can start installing aircons in our Ladas . Regards Danie
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Post by ronnie on Oct 23, 2010 9:25:28 GMT 2
Hi Ventz Thank you for your comprehensive post on air cons. I am aware of most of the points you have made. The switch to cut out the compressor is a temp thing to safeguard the engine. Watch this space as I have dug up an electrical solenoid used to engage the overdrive on a MK2 Jaguar which will do the job for the present. (I hope). It is a bit of an overkill, but sometimes you must use what you have. I have only seen electric idle up solenoids, but the garage which gassed the unit mentioned the vacuum type. This needs a visit to the scrap yard. I did ask them to order one for me, but there seems to be a common reluctance by many places to do anything which requires some effort . I did spy the other Lada and made an effort to speak to Johan. When I managed to, I did mention the club and gave him the web address, but he has not responded. Thanks again. Ronnie
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Post by ronnie on Oct 23, 2010 9:32:10 GMT 2
Hi Ventz
Sorry I forgot to mention the electric petrol pump. I have wired it properly through it`s own relay so there should be no problems there. I have also installed it in a cool place, behind the splash panel in the front wing. I don`t see much sign of water in there so that should not be a problem either.
Ronnie
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Post by danie on Oct 23, 2010 10:03:45 GMT 2
Hi Ronnie
For what it's worth - when i visited the local Autozone about three weeks ago they had a special on some components , including an "electric idling valve for VW's " - at R56.00.
I guesss that is the same as an "idle up solenoid"
Danie
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Post by ronnie on Oct 23, 2010 12:38:56 GMT 2
Hi Danie
I would think any electric solenoid as long as it has enough power can be adapted.
Ronnie
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Post by ronnie on Oct 23, 2010 14:07:12 GMT 2
Hi All I have made up a bracket and fitted the Jag solenoid which is obviously far to big but serves the purpose in the meantime. It works fine and I have set it for 1000rpm. No doubt this will vary a bit as I find the idle speed is not consist ant from one day to the next, and I don`t know why. One of these days I will fit a webber which I much prefer(not like Ari) ;D. Here`s a pic of the solenoid. Ronnie Attachments:
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Post by ronnie on Oct 23, 2010 14:08:25 GMT 2
Hi All Here it`s fitted and working Ronnie Attachments:
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Post by Charles on Oct 23, 2010 14:46:20 GMT 2
As long as it works it doesnt matter if its too big. I also prefer a webber.
Charles
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Post by ronnie on Nov 30, 2010 18:38:26 GMT 2
Hi All I was not happy with the face plate with the air outlets as it had 6 visible fixing screws. Here is the new plate with concealed fixings which I think looks better. Ronnie Attachments:
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Post by Charles on Nov 30, 2010 18:45:47 GMT 2
Like always very nice work.
Charles
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Ventzel
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Post by Ventzel on Dec 9, 2010 1:30:16 GMT 2
Hi all,
I decided to release 2 aircons for sale. It is senseless to keep them more if so many people ask for them. My opinion still remain aircons are burden for Lada, but it will be the owner's concern. No problems for injection Niva, some precautions for carburetor Nivas.
1. Complete aircon with every single piece - radiator, fan, evaporator,.... everything - belt, compressor brackets, relays, wires, switches. Crisp-Air aircon, designed for Lada, with nice vent plate inside, Japanese SanDen compressor. Almost new (but stays 10 years in box), fitted to demo model and removed when the car was sold. Need one day for installation. Price R5000.
2. Same as point 1 but compressor bracket missing (can provide photos and diagrams); inside vent plate also missing. Should be done something for the face like Ronnie did - see the picture above. A German electrical fuel pump available for the carb engines; injection Nivas do not need extra pump. Price R4000.
Regards
Ventz
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Post by hendrikgangel on Feb 26, 2011 11:34:21 GMT 2
Hi all, I decided to release 2 aircons for sale. It is senseless to keep them more if so many people ask for them. My opinion still remain aircons are burden for Lada, but it will be the owner's concern. No problems for injection Niva, some precautions for carburetor Nivas. 1. Complete aircon with every single piece - radiator, fan, evaporator,.... everything - belt, compressor brackets, relays, wires, switches. Crisp-Air aircon, designed for Lada, with nice vent plate inside, Japanese SanDen compressor. Almost new (but stays 10 years in box), fitted to demo model and removed when the car was sold. Need one day for installation. Price R5000. 2. Same as point 1 but compressor bracket missing (can provide photos and diagrams); inside vent plate also missing. Should be done something for the face like Ronnie did - see the picture above. A German electrical fuel pump available for the carb engines; injection Nivas do not need extra pump. Price R4000. Regards Ventz Hi Ventz Interested to hear if these have been sold? Regards Hendrik
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Ventzel
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Post by Ventzel on Mar 1, 2011 8:28:53 GMT 2
Not sold, still available.
V.
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Post by ronnie on Mar 18, 2011 13:21:36 GMT 2
Hi Spikes
If you wanted to fit quarter lights instead of an air con I would fit doors complete with them. to modify a door would require major work and would not be worth it. The other side of the coin is they are not a substitute for an air con.
Ronnie
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spikes
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Post by spikes on Mar 18, 2011 14:23:02 GMT 2
Hi Ronnie Yes, that is what I thought (complete door)I continued that post under (model year of Lada) Nope I am not considering an air-con or fitting new doors to get quarter vents. I was just plain curious- maybe be the Univ graduates :)had found a different way of doing it Regards Spikes
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Post by ronnie on Mar 25, 2011 9:16:35 GMT 2
Hi Marius / Vincent
It is funny you should mention the Idle up for the air con as it was only yesterday that I got one working on the Webber carb. There was no way that i could find to fit one to the carb. By one I mean with the only solenoid I have which happens to be the solenoid to engage the overdrive on a MK11 Jag, which I have had lying around for years. What I have done is mount it high above the accelerator pedal so it increases the tick over when the compressor cuts in by 400 rpm. Once I see it working correctly for a few days I will post some pics of it.
Ronnie
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