Top End Engine Rebuild

[matty205xs 1 1 Cars]

hi everyone, im planning on renewing the piston rings, the exhaust valves, and tappets complete with the springs but I cant seem to find the tappet kit with the springs anywhere. does anyone know where I can get the complete set form at a reasonable price also a place where I can get some fairly decent priced piston rings and exhaust valves from aswell would be great if not then what is the going price for these parts.

thanks matt.

[RossD 44]

When you say tappets, are we talking an 8v TU or a 16v?

[matty205xs 1 1 Cars]

ye its the 1.4 xs 8 valve tu engine.

Edited August 11, 2014 by matty205xs

[welshpug 1,661]

no tappets in them!

[matty205xs 1 1 Cars]

so wat would I be having to replace then? so wat are the springs underneath the rocker cover that need adjusting some times?

[welshpug 1,661]

there's valve springs under there certainly, but no tappets, the rockers act directly from the cam to the top of the valve stem.

[matty205xs 1 1 Cars]

right ok so when I replace the exhaust valves ill replace the rocker arms and valve springs? or would the rocker arms be fine as they are as they are about £20 each on ebay and would I need to replace the valve springs aswell when replacing the exhaust valves?

Edited August 11, 2014 by matty205xs

[calvinhorse 870]

Rockers won't need replacing unless they are bent?

 

Springs are available from pug for ~£2 each

 

Genuine valve stem seals are cheap

 

Why do you want to replace valves?

[matty205xs 1 1 Cars]

well the engine sounds tappety and iv been told its probably the exhaust valves either that or he said its just a valvy sounding engine, what do u think?. Also would replacing the piston rings make any difference to the oomph or the power of the car?

thanks.

[calvinhorse 870]

Tapping can be sorted by setting the adjustable rockers correctly!

 

I'd set the rockers and see what it feels like and go from there

[matty205xs 1 1 Cars]

yep iv already had them adjusted by somebody and it made little to no difference as none of them really needed any adjustment. what else can I do?

Tapping can be sorted by setting the adjustable rockers correctly!

I'd set the rockers and see what it feels like and go from there

 

[MikeM 5]

Ignore the noise and put your foot down! The engine sounded fine to me last time I heard it, perhaps a little tap now and then but it is a 20ish year old engine. I set your rockers as per the haynes manual - the same way I did my own engine which sounds fine.

[pugdamo 111 2 Cars]

Have you checked for a cracked/blowing exhaust manifold,this can make a tappy noise.

[calvinhorse 870]

MikeM, I've always set mine to .2 inlet and .2 exhaust rather than .2 and .4 like the Haynes manual says

[matty205xs 1 1 Cars]

ye I know, the car is pretty nippy as it is now but now im trying to get abit more oomph without changing anything like the camshaft so I thought id try and replace some of the things that may have worn over the 20 years like the piston rings and exhaust valves, its probably stupid but u know wat im like I get bored and start looking for things to do on it.

Edited August 13, 2014 by matty205xs

[Rippthrough 98]

I've always ran 0.15 and 0.35 on my head, never had any tappet/valve lash noise.

 

Buy my cylinder head

[309jazzpanda 41]

Unless they are bent I personally wouldn't be changing valves, just re lap them in while it's all apart. Also if it's tappy check for a worn camshaft as even the rockers are set right it will still be noisey. Mine used to tap like mad until I stripped the dizzy and found one of the hammer arms was just rattling around banging on the casing, poss check if it is noisey

[matty205xs 1 1 Cars]

right ok thanks for the suggestions, how would I know if the camshaft is worn or would I have to strip apart first to find out?

[calvinhorse 870]

The rockers aren't as wide as the cam lobes on this type of TU engine so when they wear you can see a clear groove forming on the lobe

[matty205xs 1 1 Cars]

right ok ill have a look when I get round to taking it apart, thanks for ur help.