Club 80-90 Forums

I had a similar problem with mine a few years back. Ultrasonic cleaning and stripping of the carburettor sorted out in the end.

jamesc76 wrote:As you put you have cleaned the carb out but is everything spot on in it ie the main jet needle ???

Looked OK, but new one on the way to me.

Many thanks, Aidan.

kevtherev wrote:is the choke fully retracting?
float height ok

Yes

HC is un burnt fuel as you know, so that includes oil, don't discount the ring/bore wear.
did you do a leak down test to discount ring/bore wear?

Yes. All good hence rings and valve sealing eliminated.

High hydrocarbon emissions from a vehicle may be caused by improper ignition timing, faulty ignition, misfiring problems, vacuum leaks, worn piston rings or valves . One fouled spark plug can result in extremely high hydrocarbon emissions. Your truck is years old and probably has high mileage. Star...

air leak on the vacuum pipe to the servo can also cause this as no3 and 4 will run lean, wrap the braided hose from the manifold in gaffer and retest, if it's ok then you have your leak source, the wire braiding reinforcement in the pipe rusts and the whole pipe can become porous Why would an air l...

eatcustard wrote:Is it burning oil?

No. Compression test is fine so worn rings are eliminated.

Watch for the cylinder head exhaust studs shearing off. They did in mine last year.

Had to drill out and retap. Nightmare.

I've got a 1984 petrol automatic 1.9 T25. It is running fine apart from the MOT test, which is very strict here in Northern Ireland. This year the hydrocarbon reading has been getting very hard to pass. With a lot of creative carb tweaking, (including temporarily disconnecting the vacuum advance!) w...

Locate the thermostat housing and there will be 1 or possibly 2 sender units on there, if you have 2 it is the awkward 1 at the back, take off plug and short across the terminals, if gauge is ok it will go all the way over and you will have to replace sender, if not you have dodgy wiring and not th...

This link needs to go in the wiki.

Good spot.

From memory when i had problems with a Aircooled 2ltr devon that had a autobox ref leaking fluid.There was a big round part that had a large circlip.This would leak out fluid when it was running.I had other major problems with the autobox so i never got it repaired but replaced it with a second han...

I've a couple fitted as reading lights, above the bed, on swivel fittings.

They work well.

I take it you fitted a new copper / crush washer when you last drained the oil?

Apologies, if that's stating the obvious by the way.

"Sump" Gasket is the only place I've seen a leak... bit of a result him having one in stock btw... mine was 2 week special order job when I needed one!