vroooom ptssssh

Jus a quicky...I had my rocker cover off today and as was poking about I noticed the far right exhaust rocker seemed to be loose? I could twist it left-right slightly wheras every other rocker wouldnt budge, Ithought it might just be the way the cam was sitting at that point but checked the nut on the rocker and it seemed fairly loose! so I tightened it up a bit, not fully as still wasnt sure if it was just the way the cam was positioned or whatever, ive not got a torque wrench small enough to tighten them as per haynes manual, it does seem to be that area its tickin from? any thoughts? suppose I should get a torque wrench and tighten it up properly but I'll hopefully be changing the cam in a few weeks time.

haz87

No rocker should be loose! So theres ya tickin problem

vroooom ptssssh

Ah didnt thinkso, but didnt wanna tighten it up too much Its quieter but I reckon the cams still worn so still gonna replace it, plus I didnt have a torque wrench and couldnt be arsed turning it so that perticular lobe was at its lowest point to then tighten the rocker...lazy

also, you know round the top of the tappet, theirs a dark bit of metal crimped over the top round the edge...well a couple of them could spin freely on the tappet, which sais to me they've came loose somehow

haz87

Never seen that before
Id just replace the cam and tappets if you suspect your cam to be worn anyway! Oh and make sure you tighten everything down when you do replace it all

vroooom ptssssh

Yea new cam and kit (whats in a kit?) apart from the cam an tappets?

the tappet thing is a weird one...

haz87

Kit is usually cam and tappets. If your lucky you might get new rocker nuts but thats it. Unless you go for a hugely expensive one with the uprated valve springs etc. All depends on what cam you go for tbh

vroooom ptssssh

Gonna get a std cam/tappets...only other one i'd go for is newman but cant afford both the cam & the solid tappets you NEED to go with it.

haz87

Im sure theres a normal road spec one (opposed to race/fast road spec) that you can use with normal hydraulic tappets

haz87

Ok maybe not, just checked

SafeChav

You'll find the cam lobe & hydraulic lifter for that same rocker are knackered, and thats where your engine tap is coming from.

Number 4 is always the favourite, apparently due to casting faults on all CVH's

vroooom ptssssh

haz87, They should do one tho eh

SafeChav, Cheers Andy, It does seem to be tapping from that spot when listening to it tonight!

Ah well, new cam n tappets soon, cheers

SafeChav

DON'T pull the hydraulic lifters out from the top if they are tight when you come to do it.........

vroooom ptssssh

What would make them thight in the head? If I find any tight should I remove them from where the cam comes out?

SafeChav

They burr over where the cams hardened coating breaks through and chews the lifter up.

And yes thats how you should do it.

That one that has evident wear will almost definately be burred, you'll see what i mean

vroooom ptssssh

Will the cam be as worn as the lifter?

Im waiting on a price of a cam and possibly kit off a mate who worked for a motor factors but they got shut down and he reckons he has one new in his loft but not sure if it comes with the lifters, if not, could I get any new lifters from anywhere or does it have to be from the same company as the cam?

SafeChav

It'll be fucked mate, i guarantee you that. The reason the rocker is loose is because the cam/lifter have worn past the tolerance of the hydraulic lifter, so it can no longer soak up the clearance in the valve train.

Any lifters will be ok if its a hydraulic cam, but i'd say get Genuine Ford ones if u can, seen some cheap and nasty ones floating about that blow themselves apart

vroooom ptssssh

Cool, if this cam my pal has doesnt come with the lifters i'll get ford ones cheers.