[Healeys] tappets - the pits :-(

[Austin Healey]

Hi John,

Resurfacing in always risky. The pitting is generaly a problem caused by
surface hairline cracks. You never know if You removed enough material to
completely remove the cracks or not. I would advice You to use new tappets.
Go for good quality there is high load in this item.
Pay attention to run in the cam again /10-15 minutes at 1500-2000 rpm before
using the car. Do not let it idle before this, use mineral base oil during
this - things normaly work without this, but better to go for sure/

Gergo


2011/10/26 john spaur <jmsdarch at sbcglobal.net>

> Are tappet pits okay? This is really embarrassing!
>
> I just sent my rocker arm and tappets to a well known re-builder. Several
> tappets had what I thought was extensive pitting. This occurred after 1000
> miles or so since resurfacing them. However, the engine was not run since
> 2003 due to other issues. BTW, there was no rust on them, just a well coated
> oil surface after eight years of benign neglect!
>
> The re-builder told me that the pitting was minor and typical; meaning that
> it might reoccur after another resurfacing.
>
> What causes tappet pitting? The cam looks fine. Could it be that the
> tappets, are not rotating in their bores?
>
> I want to solve this problem!
>
> Help!!
>
> John Spaur
> '62 BT7
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