Thread: Could it be a Slipped Liner? I hope not!

sounds like a lifter problem to me as its been sitting for a while .
Hows the oil pressure if its ok id pull off the rocker cover on the noisy side and check that the push rods are getting oil up them from the squirt of the lifter and check that all the push rods are tight as one of your lifters may be sticking

Chris, I would say yes most possibly a sticky lifter. I would be interested to see if holden lifters were used, as this isn't at all uncommon.
As regards the diesel option, only do this for about 30 minutes, and avoid driving the vehicle, just idle it and use no more than 500ml.
(Edit, just watched Vid, definately sounds like cam followers to me.)

JC

In my limited experience of loose liners is that they are noisier when hot.. then they sound like death rattles. A stuck lifter is likely. Apart with dealing with oil flushing/replacing, a new set of lifters is easy to do. However try lifting the rocker covers and spin the pushrods at each cylinder's TDC. You may have a bent pushrod from revving a pumped up lifter. I pulled 3 bent pushrods out of a boyo's 4.2litre stroker Range Rover engine the other day.

Thanks guys i will give these things a try on the weekend.Hoping it is just something simple like a lifter problem.You can hear the sound on the clip.And as you can see it will be a pain in the ass to take the rocker covers off. Although i have cleaned the rest of the engine bay up



[ame="http://www.youtube.com/watch?v=E8iCm0r_hiI"]YouTube- Rover 3.9 V8 Turbo on 5psi[/ame]

Originally Posted by justinc

Chris, I would say yes most possibly a sticky lifter. I would be interested to see if holden lifters were used, as this isn't at all uncommon.
As regards the diesel option, only do this for about 30 minutes, and avoid driving the vehicle, just idle it and use no more than 500ml.

JC

Yeah thanks JC.I actually said 1 litre in my thread but it should of been 500ml which is what the guy told me. I think i wll try this first and see what happens.

Originally Posted by SPROVER

Thanks guys i will give these things a try on the weekend.Hoping it is just something simple like a lifter problem.You can hear the sound on the clip.And as you can see it will be a pain in the ass to take the rocker covers off. Although i have cleaned the rest of the engine bay up



YouTube- Rover 3.9 V8 Turbo on 5psi

Sure is loud! (the noise that is) Reminds me of an engine I once had with too much compression, tin head gaskets, LPG. The (teflon) valve stem seals leaked badly and the pistons used to hit the heads with the carbon build up and the thin gaskets.When the engine warmed up it expanded and got quieter.
Could your carbon build up have fallen off over the years and wedged on to the piston crown? I suggest pulling the plugs and looking for oil fouling. Perhaps use a bore scope.I think I ended up stripping off the heads and redoing them and fitted thicker gaskets.

What about lifter pre load ?

Originally Posted by bee utey

Sure is loud! (the noise that is) Reminds me of an engine I once had with too much compression, tin head gaskets, LPG. The (teflon) valve stem seals leaked badly and the pistons used to hit the heads with the carbon build up and the thin gaskets.When the engine warmed up it expanded and got quieter.
Could your carbon build up have fallen off over the years and wedged on to the piston crown? I suggest pulling the plugs and looking for oil fouling. Perhaps use a bore scope.I think I ended up stripping off the heads and redoing them and fitted thicker gaskets.

I have to get the exhaust done When the Rover gearbox decided it didnt want to change gears anymore i put a Supra 5spd in.And to get it in i had to cut a few inches off the exhaust.I just havent bothered to get a new bit welded in yet.