This has been a bad 18 months!

[haircutmike]

Well, my 4.6 has been going great guns in the last several months after a handfull of problems involving a few engine swaps!

Just when I thought it was safe, coming back from the ring, 30 miles from home the engine starts a light tapping. I continue slowly and by the time I get home the noise is greater and I have convinced myself that I have a loose adjuster on an adjustable pushrod!

Pulled it apart and yes, on exhaust No 7 there is about 4mm valve clearance!!!

Checking has revealed the following:

No adjuster loose.
Pushrod the same length as others.
Valve stem heights all the same.

Theory;

Can a solid lifter break down?
Solid lifter worn on the base?

Can't be cam wear as it is still lifting 0.5" and play is on base of lobe.

Reassembled after speaking to Rob V8D, reset tappets, took for less then 10 mile test and it started again!

Could be stripping down now but frankly, I don't give a dam

Where's that can of petrol, (do insurance companies read PH?).

[debaron]

Sorry to hear it Pete - hope it's not those pushrods I'm just about to whack them in my 4.6!

Time to go back to hydraulic??

Ryan

[Quietlybonkers]

I have had so few issues this month I have actually started working on the paintwork......t'will be my turn next.

[haircutmike]

debaron said:

Sorry to hear it Pete - hope it's not those pushrods I'm just about to whack them in my 4.6!

Time to go back to hydraulic??

Ryan

My thoughts exactly!

If a solid lifter has broken down somehow, I guess I will have to pull the engine, strip and flush regarding swarf etc.

I can't face looking at it for a few days. When I do, I'll strip the inlet manifold and pull the lifter and then..............

[Alexdaredevilz]

From what we spoke about earlier on the phone

If you got 0.5 " on the lift that rules out cam wear

If the rod isn't undoing it's self and staying the same length that rules that out

Can't be the heal of the cam because there is no load from valve spring pushing on that part

Proving your rockers are ok it can only be the lifter collapsing

I think your going to have to pull a lifter out

[haircutmike]

Elementry my dear Alex, I'm going to build a bunk in the garage, now where's my saw?

[Alexdaredevilz]

Some how I can see my hands getting dirty this Saturday

[Quietlybonkers]

Planning on bunking up with Alex???? So the rumours are true?

[haircutmike]

Alexdaredevilz said:

Some how I can see my hands getting dirty this Saturday

Shall I pick up the engine crane?

[Alexdaredevilz]

Might aswel make it 3 engines in/out in 3 weeks!

To be honest I don't think it will need to come out there must be a logical explanation

[haircutmike]

Alexdaredevilz said:

Might aswel make it 3 engines in/out in 3 weeks!

To be honest I don't think it will need to come out there must be a logical explanation

Hope so, my huge tolerance is at an all time low but hey, time cures all .

[Alexdaredevilz]

Do you want me to pick up a ford block and a bottle of brandy on the way down?

[haircutmike]

Alexdaredevilz said:

Do you want me to pick up a ford block and a bottle of brandy on the way down?

Alcohol cures nothing, just makes you feel better.

[biper]

haircutmike said:

my huge tolerance is at an all time low .

I know how you feel.

[haircutmike]

biper said:

I know how you feel.

Up and running yet Barry?

Also, all quiet from Derek, has he his engine back yet?

[Jon Brown]

Sorry to hear this Peter, you can't catch a break

[biper]

haircutmike said:

Up and running yet Barry?

Nope, will be taking the starter motor out this evening. Sorry to hear of yor troubles, but at least you got to go and have some fun at the ring.

[neal1980]

Time for an LS I think Peter :-)

[scotty_d]

Sorry to hear this I know how you feel i seem to have never ending things to do on the Cerb some times wish i just kept the Chim.

[Pupp]

I'd be checking the journal inside the rocker pivot bearing and maybe the shaft itself...