Engine problems.

[Preen59]

??? It was a fully reco'd head, cam and valves reseated and stems replaced apparently. When I had TDC, the bucket/tappet.. Whichever it is, could be spun round by hand. Is it supposed to do that when the valve is closed?

Yes. When there is no oil pressure and no load on the valve, the bucket should move freely.. But not be sloppy in any way.


First port of call now is to file off those burrs on the squish mate. They can cause detonation.

[ozgti]

Which one is the squish? the head or piston side? (Friggin typical.. just bolted the head together.. AGAIN!)

The bucket spun freely, but the friction of the oil was stopping it from spinning round.

[Preen59]

Which one is the squish? the head or piston side? It spun, but the friction of the oil was stopping it from spinning round.

Oh, sorry..

The squish is the flat section of the combustion chamber where the charge is forced out of, or "squished" into the centre.

I was mainly talking about the head. Those small burrs will get covered with carbon. Because of their position they can't dissipate the heat. The carbon can get very hot, to the point where it acts like a glow plug. This will cause pre ignition, or "pinging".

[ozgti]

ahhh..

Ok.. So head off again!!! I'm getting good at this!!!

Looking like time to FI the Kjet!!! Grrrr. Blow it up good an' proper like!

[Preen59]

ahhh..

Ok.. So head off again!!! I'm getting good at this!!!

Looking like time to FI the Kjet!!! Grrrr. Blow it up good an' proper like!

You don't have to do it... But i'd recommend it, mate.

[Golf Loon]

What's your oil pump like? Make sure the strainer isn't blocked up by dropping the sump.

Gavin

Yup, I`d do that for sure, take the sump off, clean out the strainer and bolt it all back together. I bet the strainer is full of slurry and metal bits.

[ozgti]

Yup, I`d do that for sure, take the sump off, clean out the strainer and bolt it all back together. I bet the strainer is full of slurry and metal bits.

Nothing in the strainer, but the oil was a bit sludgey. Just had 10w40 in there for a bit, and changed it for 30w40 (High Mileage engine Oil). Seems to be better, though the buzzer came on briefly at 2k RPM, but is now temperamental. The oil pressure gauge at the top of the head is reading 2-3.5 bar at idle. I have a new oil pump to go in, but I'm going to wait and see what happens with this new oil.

Oil was browny green (Colour Blind) But it wasn't red! That's after about 300kms!!!

My Oil pressure light and buzzer keep coming on, I've disconnected the wire and earthed it. I have a new sender coming in, So I'll wait and see what happens.