Come on guys, correct way to adjust valve clearances?

[haircutmike]

I am still stumped, (read noisy tappets!).

On the rock, base circle etc etc, yes I know what it means and I have tried, oh how I've tried but still have noisy tappets!

Rob stated that as the engine warms then the clearances open by 10 thou, confirmed on another site, so why set at 7/10 or whatever thou?

Mine are set at a tight 7 thou on the rock, start off relatively quiet and get noisier as the engine warms, wtf!

Any brilliant ideas or are solid lifter/ adjustable pushrods noisy?

If the above is true I may well go back to hydraulic as I just can't stand it!

[OleVix]

What oil are u using? Maybe it gets too thin when hot?

[slideways]

Peter what are you trying to achieve using solid over hydraulic lifters,from what i have read they are just a royal pain in the arse,

[haircutmike]

Na, Millers CFS 10/50, should be fine or more usually the COR.

[Alexdaredevilz]

I got solid lifters and the engine feels tighter and revvy

I also had grief with mine , but gave to Rob at V8D = prob solved no idea what he done that I didn't all I know is I got no noise now

Peter - are you 110% sure its the tappets making the noise?

Injectors can be noisy and give a tapping/clicking noise

[haircutmike]

100% tappets, all was quiet before!

Richard, I agree, now!

[Alexdaredevilz]

Check the rods aren't hitting the heads in the hole coming up

[slideways]

if your after higher revving have you looked at hydraulic high rev lifters? i think real steel sell them

[haircutmike]

slideways said:

if your after higher revving have you looked at hydraulic high rev lifters? i think real steel sell them

Roads hi rev lifters, probably should have gone down that route!

Gonna have another go tomorrow morning at 8am, what am I doing here!!!!!!!!!!!!

[slideways]

haircutmike said:

slideways said:

if your after higher revving have you looked at hydraulic high rev lifters? i think real steel sell them

Roads hi rev lifters, probably should have gone down that route!

Gonna have another go tomorrow morning at 8am, what am I doing here!!!!!!!!!!!!

i'm here all night, sad but true! as Alex said have you checked the rods dont catch the block on a full rotation of the engine?

[haircutmike]

And if they did?

[slideways]

haircutmike said:

And if they did?

break out the dremmel

[Alexdaredevilz]

Which will require removal of the head I'm afraid

[slideways]

I think there are some poor castings out there nececitating the need for a little relief,

Edited by slideways on Saturday 7th April 03:31

[haircutmike]

My block has had work relieving the center oil slot and a bit of other work so we'll see!

I will strip out the rockers and inspect the rods.

[ivanhoew]

haircutmike said:

I am still stumped, (read noisy tappets!).

On the rock, base circle etc etc, yes I know what it means and I have tried, oh how I've tried but still have noisy tappets!

Rob stated that as the engine warms then the clearances open by 10 thou, confirmed on another site, so why set at 7/10 or whatever thou?

Mine are set at a tight 7 thou on the rock, start off relatively quiet and get noisier as the engine warms, wtf!

Any brilliant ideas or are solid lifter/ adjustable pushrods noisy?

If the above is true I may well go back to hydraulic as I just can't stand it!

set them at 7 cold .get hot ,measure. then see what the gap has increased ,or decreased by ,then adjust original cold setting by that number .

eg ,cold 7 thou ,hot 12 thou.. difference 5 thou ,set cold to 2 thou.

Edited by ivanhoew on Saturday 7th April 08:33

[ChimpanLucky]

Or get two sets of Volvo Amazon rocker arms, turn up some bushes and fit to your existing shafts.

http://www.amazoncars.co.uk/

Ask for Rob, he has some breakers & plenty of old B18 lumps for scavenging.

Adjust the Volvo rockers just like any other OHV & ditch the adjustable push rods.



You just need cup end push rods of the correct length and it's job done.

Edited by ChimpanLucky on Saturday 7th April 09:01

[haircutmike]

ChimpanLucky said:

Or get two sets of Volvo Amazon rocker arms, turn up some bushes and fit to your existing shafts.

http://www.amazoncars.co.uk/

Ask for Rob, he has some breakers & plenty of old B18 lumps for scavenging.

Adjust the Volvo rockers just like any other OHV & ditch the adjustable push rods.

That is interesting!

[haircutmike]

ivanhoew said:

set them at 7 cold .get hot ,measure. then see what the gap has increased ,or decreased by ,then adjust original cold setting by that number .

eg ,cold 7 thou ,hot 12 thou.. difference 5 thou ,set cold to 2 thou.

Edited by ivanhoew on Saturday 7th April 08:33

Thanks for that!

I have set them all to 7 cold.

Unbelievable that they should open up so much.

I will have a go at that.

[TV8]

Apart from the noise, does it go well Pete?