darryn
Veteran Niva Petrol Head
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Registered: Mar 5, 2010 21:50:09 GMT 2
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Post by darryn on Nov 14, 2010 16:25:51 GMT 2
I read up about this online, and maybe we should discuss it more? I noticed that there is a thick deposit of carbon in the combustion chambers of my Lada, as well as the exhaust manifold. The EGR valve is supposed to help with emissions and make the engine burn cleaner- how do I know if mine is working, and would thick carbon deposits signify that it isn't working?
I looked at the manual and I see that the thermo switch must be connected to the EGR valve. This was not the case on my engine.
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Post by ronnie on Nov 14, 2010 16:46:25 GMT 2
Hi Darryn
If the thermo switch was not connected then it was not working. I stripped mine out long ago. I don`t suppose Ventz will agree with that ;D
Ronnie
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darryn
Veteran Niva Petrol Head
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Post by darryn on Nov 14, 2010 16:51:10 GMT 2
Apart from wanting to be kinder to the environment (emissions) does it have other marked benefits?
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Post by Ari Bezuidenhout on Nov 14, 2010 16:55:30 GMT 2
It could also improve your economy and possibly give you slightly more power.
Ari
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Post by Charles on Nov 14, 2010 17:13:56 GMT 2
Ari it could but it doesnt. It just reduces the NoX emissions.
Charles
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Post by Charles on Nov 14, 2010 17:37:20 GMT 2
Problem with egr valves is our fuel is dirty. This causes deposits in the exhaust and this causes them to pack up. At work we just remove them. On some vehicles this even increases performance.
Charles
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Ventzel
Senior Niva Petrol Head
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Registered: Aug 3, 2010 22:30:24 GMT 2
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Post by Ventzel on Nov 15, 2010 0:16:12 GMT 2
Very well Charles!
You remind me about my youth. I've got huge background with ecological devices on the motor cars and even my masters degree was about them. But soon later the cold war was over, we lost it, our research department was closed down and all was over. Well, these are political and economical problems, no place for them now in the forum.
Absolutely true, the EGR valve reduces Nitrogen Oxides. It operates with engine high revolutions and temperature - thermo-vacuum switch opens the EGR diaphragm. And some of the exhaust gases return back for second burn. The engine is not happy, no doubt - it likes oxygen not smoke.
Then remove it or blank it or by-pass the pipes or easiest - leave is as is. After an years in operation, usually the stem in the middle of the EGR flange is blocked with deposits. That mean there is no more access of exhaust gas. This is not modification, Ronnie but improvement
Darryn, in your case with removed manifolds, you can use the opportunity just to put blank plates on the exhaust manifold where the EGR valve stays and on the intake manifold from behind and brass hexagonal plug on the place where thermo-vacuum switch is situated. Or leave it as is with blocked central stem just for good looking and factory preserved design.
EGR valve is essential for Europe and North America; here the ecological levels are not so cruel - for good or for bad.
V.
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Post by ronnie on Nov 15, 2010 10:03:26 GMT 2
Hi Darryn and Ventz If you disgard the egr parts the thermo switch can be tapped to take a thermo switch to control electric fans. Ronnie
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Post by Charles on Nov 15, 2010 20:56:09 GMT 2
Ronnie can you maybe remember what size the tread is off the Egr thermo switch?
Charles
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Post by ronnie on Nov 15, 2010 21:17:25 GMT 2
Hi Charles
I can`t remember what the thread was but I broke the switch out of the brass body and tapped it for a Elchin FS 2001 thermo switch. It works a charm.
Ronnie
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Post by Charles on Nov 15, 2010 22:16:40 GMT 2
Hi Ronnie
Thank you. I have a electric fan that will for time being just run thru a switch bat a thermo switch will be even better.
Charles
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