Stage 1 V8

arturo126 · Post by **arturo126** » Sat Dec 10, 2011 7:30 pm

I have problema with my EGR. Anyone has the scheme and Photos of EGR and conections. Best Regards Arturo

map1275 · Post by **map1275** » Sat Dec 10, 2011 9:56 pm

What is the problem?

arturo126 · Post by **arturo126** » Sun Dec 11, 2011 1:30 am

The tube that is from EGR to a place that i don t know have burned. I have a problem in idle and on higher speed. I change the sparks bobine and condenser and Contact points. Everything was perfect, runs well. Then when EGR tube burned they stay acelareted in high rpm and fail in high speed. I think the problem is from EGR . Any tips? Sorry for my english. Best regards Arturo.

map1275 · Post by **map1275** » Sun Dec 11, 2011 2:38 am

If you need EGR and air injection to meet Portuguese road laws then you don't have much of a choice. Otherwise the EGR and air injection can be removed.

The EGR valve connects to the middle of the inlet manifold through the big steel tube. The rubber hose that controls the valve goes to the inlet manifold. It is possible that the valve has stuck open but I would suspect that you have either knocked off an ignition lead or created and air leak at the inlet manifold.

Some of the parts are covered in the parts list. Some in the workshop manual and most in the emission control supplement that would accompany your owner's handbook.

sebking · Post by **sebking** » Sun Dec 11, 2011 10:26 am

On mine I have the EGR Valve and the pipe to the Manifold, everything else is long gone. Have not had trouble getting through UK emissions like this.

What do I need to do to remove the remainder, doesn't seem to do anything. the exploded diagram looks quite complex so can't believe it is still actually working.

Seb

arturo126 · Post by **arturo126** » Sun Dec 11, 2011 3:48 pm

Thanks, i'changed ignitions leads 2 months ago and it runs good. When i take
off the tube that comes from carburetter and go to rock cover the idle goes down as when i turn off engine and then switch on the idle is good. That is the reason that i think the problem is from the EGR valve. I'm going to make a movie to best see the problem. Arturo

sebking · Post by **sebking** » Sun Dec 11, 2011 8:09 pm

that sound much more like the vacuum advance than anything to do with the EGR stuff.

map1275 · Post by **map1275** » Sun Dec 11, 2011 9:29 pm

So your problem only occurs when you play with things? As opposed to an actual problem?

The engine runs CCV (carburettor crankcase ventilation) so pulling off a vent hose will upset idle.

You still haven't touched the EGR which should only work above hot idle.

5988 · Post by **5988** » Sun Dec 11, 2011 11:30 pm

as above, removing the vent pipe will cause running problems.

I suggest you check the pipe from the egr valve to the intake manifold. if you have got a hole on this extra air will get into the manifold, upsetting running.

seb - the egr valve is screwed tp the manifold so could be removed ...and a banking plug fitted. good luck getting it off though (I swapped manifolds as it wouldn't come off)
the pipe will need banking at the manifold end. alternatively I can't see an issue with removing the vacuum pipe from the egr valve (won't open then) and leaving it all in place.

arturo126 · Post by **arturo126** » Mon Dec 12, 2011 11:02 am

When i stoped for instance in a red light, it stay more or less in 1500 2000 rpm sometimes do it sometimes not. It´s not regular. Can you send me photos of your EGR plugged . Arturo

map1275 · Post by **map1275** » Mon Dec 12, 2011 8:53 pm

So it could be worn carburettors or a faulty brake servo. When you have your foot on the brake at idle, the revs go up.

If the valve is sticking, then hook up a vacuum pump and test it. Otherwise it is fair to say that it is old enough to require replacing anyway.

Either end of your EGR plumbing is an imperial thread. All you have to do is unscrew your pipe work, clean the threads and fill the holes with plugs. However, you need to confirm that Portuguese road law permits this. Most first world countries would instantly fail you for the equipment being missing, let alone not working.

As previously explained, I also prefer to fit another manifold. It can be far better to buy brand new. They are affordable and you get five new studs that can actually be removed.

sebking · Post by **sebking** » Mon Dec 12, 2011 9:26 pm

lol! "most first world" - well in the UK as long as it passes the relevant test - no worries and for the last 10 or so tests mine has passed with the stuff disabled.

tbh, UK and first world in the same sentence opens up a whole load of questions...

arturo126 · Post by **arturo126** » Mon Dec 12, 2011 11:07 pm

Thanks people. MAP it´s not when i have my foot on the brake at idle, the revs go up. Simple when i stopped they don´t get down,stay at 1500 to 2000 sometimes. Tomorrow i´m going to try to make a movie. Does anybody have a photo of egr.
Portugal first world

Arturo

5988 · Post by **5988** » Mon Dec 12, 2011 11:08 pm

Are you sure the throttle linage isnt simply sticking open (oil cable and linkages)

I would expect an EGR fault or air excess air to slow it

arturo126 · Post by **arturo126** » Wed Dec 14, 2011 11:01 pm

Today i spent 2 hours to remove EGR, with lots of "bala". I close the entris of the tube and i have a big improvement on the idle problem, but it isn't in the right time.

Stage 1 V8

EGR

EGR

removal

egr

1st world