troyeastwood9

Can anyone help me!?I have a saph cossie that is going to kill me off,it’s been moth balled away since 2009 and is in good condition considering,but I’ve been getting it on the road and run into numerous issues,I had it running and driving fine but realised it was pressurising the coolant system,turned out the head was corroded(pics attached)so I sent it off to be stripped,ally welded,skimmed,and rebuilt,then I put the engine back together with all new gaskets,then after starting it unfortunately it was running lumpy and oil was pouring out the back of the turbo,bearing in mind there was nothing wrong with the turbo before the engine was dismantled,so I had that rebuilt which has solved that problem but now it has major running issues…when it’s running it sounds like it’s on 3 cylinders and it’s very rich,I took the spark plugs out and number 3 has oily petrol moisture on it but very clean compared to the rest which are very black and sooty,it’s almost like number 3 has no combustion,I checked for spark which it has and I also took off the fuel rail and all the injectors are working(they are recent reconditioned dark greens)so I did a compression test and number 3 cylinder was at about 135psi compared to the rest that are nearer the 140 mark,I feel so deflated because I feel like it could be something to do with the head and it’s reassembly and dreading it all having to come apart again,it has stage 3 upgrades that are all new,I would appreciate anyone’s help and advi






ce

james kiely

iTrader: (5)

did you have the head pressure-tested when you had it welded and skimmed .what is the head measuring now .you look like you have water crossing into the cylinder on no.3

did you do a leak down test on the block to see how your rings are/

troyeastwood9

The picture you see with water crossing to the cylinder is before I had the head repaired,I presume they would have pressure tested the head when it was repaired,they did a .005 skim on the head but I am unsure what it was before,I think I do need to get a leak down test done,will that clarify that it’s internal?and where air passes indicate where the problem is?

james kiely

iTrader: (5)

its a little strange that the problem is still on number 3 .saying that it looks like it was over-fueling badly before you took the head off.

over-fueling can kill the spark plugs pretty quickly

troyeastwood9

I’ve just discovered this and am wondering if this could make it run on only 3 cylinders?it’s a damaged lug on the camshaft pulley,which I may have damaged when changing the cam belt


This is how many feelers you could get in the gap

james kiely

iTrader: (5)

i would say you found your problem .anywhere between 0.6 and 1 mm is the gap you want

troyeastwood9

I’m going to source another pulley and see if that solves the problem🤞thanks for the help

stevieturbo

That is not the camshaft pulley, it is the crankshaft pulley.

And yes those 4 teeth are absolutely critical to how the ecu sees the crank rotating. You need a new pulley.

troyeastwood9

Yeah I meant crankshaft,don’t know why I wrote cam…