Club 80-90 Forums

Stovies wrote:I've noticed that I have air in the return line. Is this normal.

There shouldn't be air in the return. To have air in the pipes, there must be a leak letting air in somewhere. This could be before the injection pump, in which case there would be bubbles all the time the engine is running. Any of the joints could be at fault, including the fuel filter. They can be difficult to find, but you just have to persevere. If you get bubbles only when first started the leak may be on the return line somewhere, as with the engine running this pipe is not really under suction. Principal culprits here are the back leakage braided rubber pipes on the injectors, and that little rubber cap on injector 4. (Change these anyway, they are only a couple of quid).

There should be a length of translucent pipe on the inlet to the IP so you can check for bubbles. If not, best change it to translucent.

Be thorough. Best of luck.

colinthefox wrote:Looks like the air box that came with the AEF engine, cut down to fit. Not much chance of getting a good seal on that, and it doesn't have a sealed inlet duct from the snorkel in the rear quarter.
I would think the best thing would be to swap it for a CS manifold and air box, then connect that with a piece of silicone air ducting to the snorkel if it's still fitted. The CS manifold will need some minor fettling to improve airflow, as the ports don't quite match.

I've looked everywhere for the torc setting for the CS manifold bolts. What should they be ?

General torque settings from the AEF manual:-

M6 10Nm
[E D I T]
M7 15Nm
M8 20Nm
[/E D I T]
M10 40Nm
M12 60Nm

Manifolds are 8mm so [E D I T] 20Nm [/E D I T]

Thanks

I'm very sorry, I did that last post in a hurry and got it wrong. I've edited it now so it should be correct.

Grovel.

Ha ha no worries but thanks for your help