Club 80-90 Forums

Another thing worth knowing for anyone with cooling/bleeding issues: if some comedian has previously used radweld, barrs leaks or a similar leak blocking product in the coolant, all of the bleed rail hoses and connections need to be checked for blockages.
Ask me how I know.

You will need to find a way to bleed off a small amount of coolant from the pump to the interwarmer (it also helps to warm the oil before the thermostat opens, helping the engine get up to operating temp faster for better emissions) Not a problem with the late pump because it has such a feature, how...

They are only switches not sensors. The low pressure one puts the oil light off at a very low pressure (a few psi) and the high one will sound the buzzer if there is insufficient pressure (depending on the switch) over 2000rpm.

You need to read up on how the DOPWS system works. Dynamic Oil Pressure Warning System.
Because it is an electrical system, bad earths and corroded connectors can cause false alarms.

Just go easy with all that new found torque or you will need a rebuilt transmission before too long...TDI's give the 094 a hard time.

Autodoc is ok. Good pricing. Week-10 days delivery, depends where the item is held, could be anywhere in Europe.

Oh look here's the answer! Grey coil for long service interval application i e. Those stupid triple electrode plugs

https://club8090.co.uk/wiki/VW_Electrics_Ignition_Coil

As long as the secondary resistance readings are about the same, I'd say it makes no odds. Green label is 2.4 to 3.5k Ohm, Grey 6.9-8.5k Ohm.

There is/was probably a specific plug of each type of coil.

I have green label and single electrode plugs.

There's green or grey sticker, early and late terminals. 4 variants in total. The coils have negligable differences so can be considered interchangeable, I'd always go with the later pin type terminals which does mean a new dissy cap and plug leads but they grip better than the early DIN ones. Final...

If it is anything like the 5-cyl, early ones used a trapezoidal tooth profile and later used a (quieter) half-round/sinusoidal tooth form.
They are different lengths and you need the matching coolant pump/tensioner.

Thanks, much appreciated

Can someone please confirm the centre-to-centre distance of the two M6 holes that are used to mount the late type coolant overflow tank to the rear valance? It appears to be in the 96-98mm range but defo less than 100mm. I don't have a good tank to check the hole centres. FYI I'm making a bracket fo...

Capillary action should keep the pressure line full, a leak would be obvious! Is your block earthing sound? Those remote switches need their own earth iirc so it might be an instrumentation earth loop/return problem.

Pedal cover is a LHD thing only, impossible to fit to a RHD. The chassis outrigger does a pretty good job of deflecting any road spray.
Front wheels on ramps, drop the clamshell, get comfortable and start swearing.

IME the pump pushrods don't wear enough for it to be a problem, only once the pump valves fail to seal properly and leak back is it a factor. A new pump should lift fuel fairly quickly, disconnect the coil supply (black wires) then remove the spark plugs and give it a good cranking. Ao much quicker ...