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Guest Troy Halliday

I have just finnishe reinstalling all the components that make up the heater matrix and I must say that it is the most rediculas complicated pile of crap that I have ever worked on. The designer of the unit should be shot. Bloody vacume piprs everywhere. The bad thing is though I have no idea if it will work or not untill the car is finished ;)

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Guest Troy Halliday

Consider it done I'm on my way round now to work on the car I'll post them tonight. ;)

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So it worked itself  ;) wish mine is also that easy  :(

<{POST_SNAPBACK}>

Now that we have outside temp of ~ 22 to 23


Ciao,

JB

'88 Excel SE - monaco white

'99 Elise 111 - azure blue �

'87 TurboEsprit - calypso red

'02 BMW 325ci convertible - diamond black

wwwlotusexceldebannernew300eu5.jpg

http://excelregister.lotusexcel.de

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Jimmy, Your car is like that Plymouth Fury in the movie Christine :(

<{POST_SNAPBACK}>

Colourwise, I would agree with


Ciao,

JB

'88 Excel SE - monaco white

'99 Elise 111 - azure blue �

'87 TurboEsprit - calypso red

'02 BMW 325ci convertible - diamond black

wwwlotusexceldebannernew300eu5.jpg

http://excelregister.lotusexcel.de

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Daniel:

"Mr. Myagi, why are you looking so sad?"

Myagi:

"This morning, I little bit cold - turned on the self-healed heater- NO WORK!

NO WORK AGAIN! " :D


Ciao,

JB

'88 Excel SE - monaco white

'99 Elise 111 - azure blue �

'87 TurboEsprit - calypso red

'02 BMW 325ci convertible - diamond black

wwwlotusexceldebannernew300eu5.jpg

http://excelregister.lotusexcel.de

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Daniel:

"Mr. Myagi, why are you looking so sad?"

Myagi:

"This morning, I little bit cold - turned on the self-healed heater- NO WORK!

NO WORK AGAIN! " :D

<{POST_SNAPBACK}>

Your car seems to have mind of its own :) hope it brightens up.


Check my blog and leave comments/suggestions Jussi's photography blog

See you in G+ Jussi Alanko in Google+

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Your car seems to have mind of its own  :P hope it brightens up.

<{POST_SNAPBACK}>

Now, on the way home after work, everything (I mean hot air, all flaps moving etc.) was working as it should again.

It seems that my heater is supposed to work under warm conditions only.. :D

Does anybody has an idea why vacuum is only present when ambient temp. is high?

BTW, I will not be able to check this forum for the next 14 days, as will be on vacation. :)

CU


Ciao,

JB

'88 Excel SE - monaco white

'99 Elise 111 - azure blue �

'87 TurboEsprit - calypso red

'02 BMW 325ci convertible - diamond black

wwwlotusexceldebannernew300eu5.jpg

http://excelregister.lotusexcel.de

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Consider it done I'm on my way round now to work on the car I'll post them tonight.  :(

<{POST_SNAPBACK}>

Have you remembered to take those photos about vacuum pipes behind the radio.


Check my blog and leave comments/suggestions Jussi's photography blog

See you in G+ Jussi Alanko in Google+

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Now, on the way home after work, everything (I mean hot air, all flaps moving etc.) was working as it should again.

It seems that my heater is supposed to work under warm conditions only.. :(

Does anybody has an idea why vacuum is only present when ambient temp. is high?

BTW, I will not be able to check this forum for the next 14 days, as  will be on vacation.  :(

CU

<{POST_SNAPBACK}>

The only explanation I can think of is your vacuum line for your heater has been mistakenly connected to the Thermal Ignition Valve circuit , which is designed to open at 70 degrees C water temp. It could have happened when the engine was removed at some time or another by a mechanic who was more used to working on Porsches and B.M.W.s :(


SUNP0003-1.jpg

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The only explanation I can think of is your vacuum line for your heater has been mistakenly connected to the Thermal Ignition Valve circuit , which is designed to open at 70 degrees C water temp. It could have happened when the engine was removed at some time or another by a mechanic who was more used to working on Porsches and B.M.W.s :(

<{POST_SNAPBACK}>

Good point! :( Never thought of that. B)

I will check it, thanks Wayne.


Ciao,

JB

'88 Excel SE - monaco white

'99 Elise 111 - azure blue �

'87 TurboEsprit - calypso red

'02 BMW 325ci convertible - diamond black

wwwlotusexceldebannernew300eu5.jpg

http://excelregister.lotusexcel.de

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forgive my ignorance, but what is a Thermal Ignition Valve? do n/a esprits have one?

i ask because i see similar symptoms on my s3. however my mode flap seems to work fine, but then it was 30c today. i stripped the fascia and can feel vacuum at said flap. anyone know if the hot/cold cable also uses vacuum?

cheers, paul.

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forgive my ignorance, but what is a Thermal Ignition Valve? do n/a esprits have one?

i ask because i see similar symptoms on my s3. however my mode flap seems to work fine, but then it was 30c today. i stripped the fascia and can feel vacuum at said flap. anyone know if the hot/cold cable also uses vacuum?

cheers, paul.

<{POST_SNAPBACK}>

I guess it's for emission purposes and allows vacuum advance only when the engine is warm to help light up an exhasut catalyst by having the ignition retarded on start-up.


S4 Elan, Elan +2S, Federal-spec, World Championship Edition S2 Esprit #42, S1 Elise, Excel SE

 

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Troy - Did those photos ever mateialise?! :)

Wayne - I can hear flaps clonking about - so presuambly that 'bit' works fine? (No idea tbh!) Where is this mythical heater matrix?! Could this need 'flushing' (How do I do that?)

Oh... and what was that thermal wotsit you mentioned?

I have found a surgical rubber stylee hosepipe, dry and cracked, when I removed the passenger side (rhd) plastic cover in the rear quarterlight.

There are two bits, attached by a T-piece which has a third, 5 inch section of hose that goes nowhere!!!

I shall try to take a pic the next time I have the opportunity to take it all apart again! (prob friday?)

Basically, it does blow warm air but only slightly warm... it does get colder when the dial is turned to cold (ta dah!)


"When I was a kid I used to pray every night for a new bicycle. Then I realised that the Lord doesn't work that way so I stole one and asked him to forgive me."

------------------------------

ribbon200.gifG-Car Owner and Proud! ribbon200.gif

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Fishy, see what happens when you are digging in the graveyard of dead posts :):)

Surgical cracked hose is whats left of the fuel tank breather system AKA Fuel smell in cabin syndrome.

Replace it all with fuel rated plastic hose (and the piece you cant see that loops over the top of the bulkhead window ,behind the grey carpet)

As for the vacuum pipes you found, there is one that travels forwards over the passenger side roof rail to the heater control centre.

The clunking noise you can hear is the vacuum motors moving the flaps.

Pull the radio out to check none of the hoses got knocked off when the radio was installed.

Also THOROUGHLY bleed the cooling system, as I have said before, jacking the rear of the car right up helps (to raise the swirl pot higher than the heater matrix)


SUNP0003-1.jpg

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The cooling system is all brand spanking new...

New engine block, new engine hoses, new metal pipes that run the length of the car, new rads.

* So what / where is this heater matrix then?

* Were those pipes I found the petrol breather pipes or the vacuum hoses? They met at a T piece and the third, short one, went nowhere! It vented to atmosphere!


"When I was a kid I used to pray every night for a new bicycle. Then I realised that the Lord doesn't work that way so I stole one and asked him to forgive me."

------------------------------

ribbon200.gifG-Car Owner and Proud! ribbon200.gif

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Evil Doctor Fish, the heater matrix/heater valve lives behind the large piece of black fiberglass in the front compartment (on bulkhead) .Its held on with about a dozen phillips screws.

The vacuum hoses with the T piece are part of the charcoal cannister emmissions system. Its designed to capture fuel vapours and under cruise conditions vent cleaned vapours to the atmosphere.

None of those hoses should be open, the result would be a vacuum loss, probably causing the heater and the brake servo to play up ( Is brake warning lamp slow to extinguish?)


SUNP0003-1.jpg

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Guest Troy Halliday

Erm I did take them but ............................. Yep the camera decide to have a sulk again and I had already covered the dash by then.

Hot/Cold vent does not work by vacuum but by a cable going to a valve in your water heater pipe as it enters the top of the heater matrix.

For easy acces to this if you remove the black fibreglass panel under the front bonnet against the bulkhead. Then you will see a small plastic plate aprox 5" by 3" which has a screw in each corner if you remove that then you can see the heater valve.

Now this is where the heart of all our problems come from I am sure as I checked mine was working before I refitted it all only to find out recently that it is broken. So I move the arm across by hand to the open position and I now have hot air but no cold. But I can always open the window for cold.

I am looking into a replacement valve from Europa Spares Specialist which is just a cable operated water valve as used in quite a few kit cars and will be doing it when I do my final run in service at about 750 miles.

The rest is quite straight forward and I can always scan the parts manual page and do a quick diagram to show how the rest works.

Sorry guys but hope this helps :)

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Thanks all

Wayne - I'm pretty sure my charcoal cannister is on the other side!

I shall try starting the car up and seeing if there is any kind of vacuum on the free hose...

My brake light has been a bit 'sticky' on release of the handbrake but that's only because the car had been standing for a year and a half - it pretty much works properly now :)


"When I was a kid I used to pray every night for a new bicycle. Then I realised that the Lord doesn't work that way so I stole one and asked him to forgive me."

------------------------------

ribbon200.gifG-Car Owner and Proud! ribbon200.gif

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Hi all frost bitten drivers with bloody knuckles.Thought I would add my bit here.Since Wayne posted the vacuum hose diagram I have been doing my own investigations on my 84 Turbo.Firstly did they toss a coin to decide which side to put the reservoir on in the engine compartment !!! Mine is on the right with the vacuum hose going over the drivers door.I believe only federal cars have a vacuum pump as my system feeds directly off the head to the reservoir.After contorting myself under the dash and behind the radio I managed to get all the hoses onto the relevant valves and "hey presto" the cold air inlet flap works despite the fact that I cannot feel any suction on the hose when I detach it,but as soon as it is put back the flap operates?! Both the matrix hoses get hot behind the bulkhead so I assume water is flowing through it only trouble is still no hot air into the car just a trickle up onto the screen.So I am now assuming that the mode flap is not operating,I know the valve feeding it is depressig OK only trouble is I cant locate the bl***8y reservoir that opens the flap to see if the hose is connected to it!!!Does anyone know where and if it is accessible as this is all I have left to check???HELP .......

Paul 84T.

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