Tappets s3 pitted

Can anybody recommend were to obtain a new set of tappets for my 1976 2.25 diesel. The ones in are pitted and it's hard to set the gap correctly.

Hedgy said:

Can anybody recommend were to obtain a new set of tappets for my 1976 2.25 diesel. The ones in are pitted and it's hard to set the gap correctly.

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If you mean new rockers, couple of options, there are many others.

https://www.turnerengineering.co.uk/land-rover-225-diesel-engine-parts-c102x3005713

http://www.land-rover-parts-shop.com/en/ui/search.php?q=PR2 A E&af=Valves Roc

Hi, yes rocker arm sorry, I don't suppose you can have them re engineered the hardened surface has pitted, l suppose I'll have to bite the bullet and replace them. Thank you.

Hedgy said:

Hi, yes rocker arm sorry, I don't suppose you can have them re engineered the hardened surface has pitted, l suppose I'll have to bite the bullet and replace them. Thank you.

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You might, but at a twelve quid a time for new, I doubt of it's worth it.

I just got the oil stone out and did my own....quite some years ago with a 2.25d....still going strong years later....you have nothing to loose.

How bad are they...mine prob had a 15thou indentation off the valve head.

Nick.

I was thinking that I might be able to reprofile them but I wasn't sure how hard the material under the hardened surface was, certainly worth looking into after seeing the price of new ones!

Hedgy said:

Hi, yes rocker arm sorry, I don't suppose you can have them re engineered the hardened surface has pitted, l suppose I'll have to bite the bullet and replace them. Thank you.

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you can grind a new surface on the rocker and fit valve stem caps which increases surface area rocker pushes on so reducing the pocketing in future, there are machines reconditioners use but you can do it free hand with a fine wheel with a steady hand

Did it on a Mini head many years ago. Used a small piece of mild steel as a block and ever decreasing wet and dry. Finished with Brasso.
Worked a treat.
Takes for ever though. I dont think Id trust myself with a wheel no matter how fine. I would however start with a fine diamond sharpening stone if I was to have a go now. Mostly because I have one but they are not that expensive these days for a good one.

I don't know how much a set of rockers cost but if you consider how much time and effort it would take to grind them properly yourself, it must surely be cheaper to buy new ones, unless you are a skilled machinist with access to the right kit.

Col

Colthebrummie said:

I don't know how much a set of rockers cost but if you consider how much time and effort it would take to grind them properly yourself, it must surely be cheaper to buy new ones, unless you are a skilled machinist with access to the right kit.

Col

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That was my reasoning also. Under a ton for a whole new set. And probably saves a couple of hours work. And you have new, instead of ground down old ones.

To habitual tinkerers like myself you have no idea how stupid you sound.



Buy new indeed

Bobsticle said:

To habitual tinkerers like myself you have no idea how stupid you sound.



Buy new indeed

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To habitually busy high earners like myself, you have no idea how stupid you sound!

Tinkering is OK, but I mainly like tinkering on Boats. They are interesting!

You could always buy several new cylinder heads and take a photo of them with your swimming pool in the background.

Bobsticle said:

You could always buy several new cylinder heads and take a photo of them with your swimming pool in the background.

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My swimming pool is too big to get in a single pic!

Turboman said:

My swimming pool is too big to get in a single pic!

View attachment 140721

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Did you stick the whirligigs in the bottom of your garden yourself. Next doors are a bit pikey and have a couple from a hippy market.

Didn't seem particularly hard from what I remember when I did mine.

How good are the new ones we must ask....like all the crappy pattern part we have to put up with.

Go for it.

I'd try the oil stone first, if they are orginal parts they will probably out last the replacements

If the oil stone is very slow have you got a bench grinder....it was a long time ago I did mine...maybe I took the heavy stuff of first and finished with an oil stone?

you need a fine stone on a bench grinder, thats all and its surprisingly not difficult