Engine that is lol,

After my dilema thread, i decided to replace both heads on the NA, with a set im getting from Russ (Veilside) which have new valves, head gaskets etc... and after spending a good few hours on it today i stripped it down to the point of getting the heads off.

 

Now with the rocker covers off all 4 banks, when i rotate the engine, i cant see if oil is getting up to the rockers, although there is very dirty oil in all 4 and ive noticed in most i can depress the lifters slightly, which would have been giving me the tappety sound, but nothing jumping out at me that is giving the really bad rattling/tappety noise when the engine is running. The only way i can describe it, to give an idea of what it was like, having a metal disc flapping against bike spokes, like when you were a kid and used a peg and some plastic to make that silly noise lol

 

I had a fair bit of oil residue in the plenum and throttle bodies, as well as the intake pipes, so guessing pcv valves, i can push in the valve with very little pressure and virtually no resistance, so im guessing they are shot.

Will take some pics tomorrow as my hands were too dirty to get the camera out lol

 

Im quite looking forward to getting down to the block just see if those check valves and squirters are blocked, which im certain they must be, with oil starvation to the right bank, hence the bad rattling of cam lobes on the lifters.

Good luck with that mate, as for the dirty hands..........wear some latex gloves :)

I usually do lol, got a new box as well :lol:

This post is boring with out pictures lol

I don't think the Pcv are supposed to be stuff G they are just a spring non return valve designed to be sucked open by vacuum pressure, may as well fit new though while your there. It's also normal to have a film of oil in the plenum just not puddles, as the crank case gases contain oil and are injected through here.

I think they need a good clean, certainly not stiff or stuck open or closed and if they are supposed to move with the littlest of pressure then they must be working, although puzzling as to why so much oil in the intakes and plenum, ive also noticed the same in the lower plenum, which i have just taken off, will post up some pics later today, as ive taken quite a few of each stage so far :thumbup1:

The exhaust cam vent is a crap design as well so can suck up oil, was it blowing out blue smoke?

White smoke when i floored it, but not on tickover.

Good luck Graham - hope you have it sorted in time for JAE matey!!

 

Richard:clover:

Cheers mate, it will be (fingers crossed) :whistling:

 

Uploading pics in a minute Ian :biggrin:

Part stripped

Notice the oil in the lower plenum intake

 

Got the under drive pulley off and belt out and i think i may need to replace the cam belt pulleys as there is a few mm movement

Got the manifolds off and the cam pulleys on the drivers head removed along with the back plate, other side tomorrow, then heads off, deep joy lol

Like Rich has said Graham hope you get it sorted for JAE mate.

Got the drivers head off and apart from a couple of sludgy journals there is nothing obvious as to why it was making a racket, a little play in some of the lifters, no marks on the cam lobes and finally a little movement in the pistons, which after some research is normal, ie slight back and forth movement by a few mm not up and down lol