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All sorted! Thanks for the input everybody. I took the pump off again and made sure the diaphragm was positioned properly, and turned the engine on the handle to change the cam position before refitting it. Also what I found really useful was to refit the bottom half of the pump before...

Interesting about the position of the cam changing the effectiveness of the hand primer too... I'll definitely bear that in mind.

Thanks for the input everyone. Gives me a few things to look into at least. I did just change the diaphragm as I was being lazy and couldn't work out how to do the valves! But I sort of just assumed they'd still be working fine.... I definitely got the diaphragm with the correct fitting (on the...

Oh right I hadn't thought of that... Must admit I just assumed it would all fall into position when the pump was refitted. Would that affect the hand primer too though? When I was pumping the lever it sounded like the diaphragm was working as it should.

Hi everyone. In the process of trying to find out how fuel was getting into my oil sump (mentioned in another thread) I've had the fuel pump (petrol) off and replaced the diaphragm, but now I've got it fitted again it doesn't seem to be pulling any fuel through, either by hand priming or turning...

I'll finally get a chance to look into it again tomorrow and I'll be starting with the fuel pump. Fingers crossed that'll prove to be the problem. I'll let you know. Thanks again.

It would make my week if it was! I'm struggling to picture the inside of the engine to work out how fuel could get into which bits. I guess a problem with the carb could help explain why the throttle pedal wasn't having any effect on the running...

Annoyingly I won't be able to get back to the Landy til Thurs now to check the fuel level in the filter, but it does have a transparent one so I'll check that. Sadly the head gasket was a fairly big learning curve for me as it was so I didn't dare delve any deeper, but maybe I should've by the...

Well... last night I managed to find a couple of demijohns to pour the oil into and actually couldn't see any evidence of water in it at all! I even poured a bit of water into one of them to see how it behaved and there's definitely no mistaking it, so I think it is indeed petrol in the oil...

Thanks for the input guys. Good to have some kind of starting point. Saves me crying into a pint just yet!

Yes I was imagining I'd see the classic 'mayonnaise' thing too but didn't see much sign of anything like that.

Yeah she's been parked on the flat and not been running except when I ran her yesterday for a little while. Well I've drained all the water out so I guess maybe I could refill the oil until it reads on the dipstick and then try manually pumping some fuel to see if that affects the oil level...

Yes still got the oil so I'll give that a try. I certainly didn't see any evidence of separated water so maybe it is fuel after all...

I hadn't thought of that actually, although I didn't notice a particular smell of petrol. Would it be possible for petrol to continue leaking for a long time or would it just be the fuel in the pump? As the oil level was massively raised so whatever the liquid was there was a lot of it. It did...

Hi everyone. So getting on for a year ago I realised the head gasket had gone on my 2.25 petrol, and did the replacement myself, which was a first so it may well be my fault that it's gone wrong, but I thought I'd followed the correct procedure to the letter. It's been off the road since then...

Ahh ok well at least I'm not missing anything then. I'm waiting to borrow a torque wrench at the moment so I've just set the head in position to keep it all clean, and put the bolts in hand tight. Not put the push rods in yet but I noted the positions so they should all go back in their original...

Thanks guys that's music to my ears! I couldn't really see any way that wouldn't be the case but thought it was best to check.. Useful tip on the valve clearances too, thanks very much. One other thing... I was a bit surprised when I got the gasket on and lifted the head into place that there...

Hi everybody. I'm in the process of refitting the head on my S3 2.25 petrol. New head gasket and had the head reconditioned so all good so far... I've never really delved into the engine before though so just looking for any tips (or warnings!) that I might need in relation to putting it back...

Cheers guys I had been thinking of grinding a flat edge on the spindle but was going to leave that as a last resort. But actually maybe there's not too much to lose by giving it a try. I'll just go very carefully with the grinder!

Morning all. Finally got a new vent panel on my lightweight and it's all just about back in one piece, except the wipers! I've bought new wiper arms, and new splined adaptor drums, naively expecting it all just to slot together.... Of course not! The wheel box spindles on mine are totally round...