123hotchef
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is it a waste gate or is it a varible vain turbo?
- Thread starter Morrisman
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The thing that pushes open the wastegate is a pressure bellows, purely done at a set pressure, usually sensed in the inlet manifold, sometimes in the exh manifold. Trouble is these bellows open gradually, if the pressure is going up gradually. So manufacturers started getting clever, and using a bellows that opened at a lower pressure, but then venting some of that off by pulsing open a solenoid - tickticktick sort of thing. Think Austin metro, Ford RsTurbo etc. This needs an ecu of sorts, which I doubt your van has?
So you probably have a pressure switch - someone mentioned a boost light?
Erm...that's what a wastegate is...
Morrisman
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I normally associate a wastegate as being on the exhaust between engine and turbo, but I guess this is just a different version of the same thing.
We managed to free up the external lever, with penetrant and some wiggling to and fro..... but whether the internals are actually moving is unknown.
There’s nowhere in the system that we can actually see that might be a solenoid operated dump, but there is a 1/2” OD hose going off behind the motor that we can’t work out where it goes too. I’ll have a look next time I go over there, see if there is a boost light on the dash, and see if we can trace that mystery hose on the boost side.
KemppiFrog
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Back when turbo charging was an add on for performance, the waste gate was a seperate item. Just bypassed the turbo when the set pressure was exceeded.
The picture is the later version when the waste gate was incorperated into the turbo castings. Had a similar item on my ford P100 1.8TD and still have a spare off a another Ford.
In the days of FI turbo cars, the driver could adjust the boost pressure... Over 1000bhp out of 1500cc (OK, they still have turbos, but less wild now.)
For a diesel, turbo induction has been the norm for ages. Big ships run 2T turbo diesels at many thousends of HP. Turbos for them weigh more than most cars..
The picture is the later version when the waste gate was incorperated into the turbo castings. Had a similar item on my ford P100 1.8TD and still have a spare off a another Ford.
In the days of FI turbo cars, the driver could adjust the boost pressure... Over 1000bhp out of 1500cc (OK, they still have turbos, but less wild now.)
For a diesel, turbo induction has been the norm for ages. Big ships run 2T turbo diesels at many thousends of HP. Turbos for them weigh more than most cars..
KemppiFrog
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Far too early.
Oh as for Leyland, that is a Pug (Talbot) van base. Think that Pugs and Fiats came out of the same factories then, as do many now.
Hopefuldave
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Going to need an archaeologist, not a mechanic...Good luck to the next guy taking that turbo off
Agree, it's an old-school turbo with a flap in a bypass passage in the exhaust turbine housing, the bellows/diaphragm will be hidden in the rusty box above the intake housing, *might* be removable for a lookit, if you're careful it won't kill it...
Dave H. (the other one)
Morrisman
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Yes, I realised after I posted it that it was cobblers, but too late to edit the title.
The diaphragm is off to the left, but i’ve blown into the hose on ours and it does move the actuating arm, with no air leaky sounds. The arm on the turbo moves easily through 90° now we have freed it off, so hopefully it is freed off internally, and not snapped off......
That's likely a Peugeot engine, they were commonly fitted to campers. Not very refined or powerful but incredibly reliable. Same engine was used in Ford Granadas.
A neighbour had one, he was a cattle & sheep dealer & used the Granada plus trailer to haul livestock all over the country. He put several hundred thousand miles on that car, same engine & the only white diesel it ever got was what was in the tank when he bought it!
A neighbour had one, he was a cattle & sheep dealer & used the Granada plus trailer to haul livestock all over the country. He put several hundred thousand miles on that car, same engine & the only white diesel it ever got was what was in the tank when he bought it!
winchman
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Make a small donation here
talbotoc.com
Loads of help and info
This bloke is also very useful and sells lots of hard to get parts
www.jktowers.co.uk
And here
coastalmotorhomes.co.uk
Talbot EXPRESS Owners Club & Forum
Citroen C25 / MK1 Fiat Ducato / Peugeot J5 WELCOME!-Just Joined our Community?-New Members Section!-Thinking of Buying a Van?-General Forum-General Campervan/Motorhome Chat
talbotoc.com
This bloke is also very useful and sells lots of hard to get parts
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Email: jktowers@hotmail.co.uk (Please email directly and NOT via this site's messaging service)I ALWAYS reply within one day at the
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Morrisman
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That was a pic I found online, but I doubt the one we’re working on is any different close up.
That first link was where I found the rusty turbo photo.Make a small donation here
Loads of help and infoTalbot EXPRESS Owners Club & Forum
Citroen C25 / MK1 Fiat Ducato / Peugeot J5 WELCOME!-Just Joined our Community?-New Members Section!-Thinking of Buying a Van?-General Forum-General Campervan/Motorhome Chat
This bloke is also very useful and sells lots of hard to get parts
And hereHome
Email: jktowers@hotmail.co.uk (Please email directly and NOT via this site's messaging service)I ALWAYS reply within one day at the
Motorhome & Commercial Vehicle Parts and Spares Retailer
