New Info and video Here's a video of what I've found. Video is not great as I was trying to juggle phone and tools but you can still see what's happening. Cylinder 4 has both exhaust valve lifters bad. Little bit of movement in one lifter on cylinder 2. Opinions and recommendation invited?? http://youtu.be/1sQuwta3oEA
Get some s/hand lifters. Pull each one apart, and thoroughly clean. Half fill with oil (don't fully fill), reassemble and place in an oil bath till you fit them. Don't worry if there is still a lifter tick on first starting, this will go out of the motor as the motor warms up on driving. PS go back to a normal oil eg 10-40w Never been a big fan of the "flashy" oils.
Things are starting to move again. I've pull the three lifters that were misbehaving, dismantled and cleaned them thoroughly. Reassembled and reinstalled. All looks good and they feel nice and tight (no sag at all). Time to start putting this mess back together. I have a few questions. 1. FSM states 10nm of torque on the cam retainer bolts. Is this important to get spot on? My torque wrench doesn't go that low, so should I buy and small one or can I just tighten them up to what seems reasonable? 2. The valve covers are sealed with grey liquid gasket. I've spent about 30mins cleaning as much off as I can. How clean do I need to get this before applying new gasket? Any tips on the best way to clean off the old stuff? Thanks in advance!
Pretty important to get the torque right as much more than that will strip the alloy thread out of the lower bearing mount in the cylinder head and due to not being much meat there means a helicoil is unlikely to fix it. 10NM is not even what you can do it up with a 3/4 ratchet and one hand on the head not the handle. My W&B Torque Wrench goes from 8NM to 150NM. What is the minimum yours will go down to?
Ok. I'd better get a new one then. Mine starts at 50nm from memory, so no where near 10nm. I thought maybe I could just tighten up by hand, but better do it right.
The Final Verdict Well it's certainly taken me some time to get this work done, but she's back together and running. The big question is "what was the problem?" Well Ron mate it wasn't a bearing. It did end up being the lifters.......but wait these more . As you will be able to see from the video below, the engine still has a noise. The noise that was so clear from my other video post has completely gone, but unfortunately it's been replaced by a similar (but not as bad) noise on the other side of the motor. So it's gone from passenger side front, to drivers side center. Man this is getting tiring. I had a listen with the stethoscope and it's definitely coming from the drivers side exhaust valves. Have a listen... http://youtu.be/dsQuX3wDLrc
dam i have found with these motors you do all of it if you had 3 suspect lifters you pulled you should have removed and clean all of them the 1st time cos everthing is so dam hard to get at iv had to pull my motor back out after fitting cos i thought it would be ok and had to pull it back out to do welsh plugs and soon i will pull out for new coolant lines on the turbos and a gearbox rebuild but man i love driving it
Good to know. If my luck runs out with this motor and I end up having to replace it, I might try to recruit you for tech day
mine came from down there i bought it early christmas and i just checked and mine was about in the middle and i had no check engine light on a near stock motor what effect would it have to the way it runs
Just a quick boring update while I'm here. Engine apart again and new set of lifters ordered. I'm going to replace them all as a last ditched attempt at fixing the engine. If this fails I think I'll have to bite the bullet and get yet another engine.
Crankshaft Have you got some photos of the front of the crankshaft and the keyway, this would enable us to make a better judgement on whether the crankshaft needs some professional repairs PS I have lots of TT Harmonic balancers, and I'm sure forum members a closer than me have some as well. You can have one for free, just postage, but they are heavy.
Hey Martin thanks for the offer. I've actually replaced the harmonic balancer now (and key). The shaft looks good and undamaged so I'm not too worried about it.
