Head Inserts

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TrevorG
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Head Inserts

Post by TrevorG » Mon Jun 03, 2019 9:46 am

Yeah, I probably do need a head insert of some of the little grey cells, but I added a question to another thread about unleaded and think it may have been missed.

Question is...did Essex engines originally have exhaust valve inserts?

I wasn't going to convert to unleaded, but I've been removing the valve gear today to lap the valves in and put new seals in place and noticed that feb's heads have got exhaust seat inserts. I'm assuming then, that she's been converted, or did the original heads in 79 have inserts fitted? I cannot remember robin rew doing this although he gas flowed the heads as part of the upgrades in 87, so he might have! Any other clues?



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scimjim
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Head Inserts

Post by scimjim » Mon Jun 03, 2019 10:24 am

No they didn’t.


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Roger Pennington
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Head Inserts

Post by Roger Pennington » Mon Jun 03, 2019 3:18 pm

Agree with Jim, and AFAIK leaded petrol was still available until 2000, so I doubt Robin would have done it in '87? (or if he did, it would have been a really memorably unusual thing to have done?)


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TrevorG
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Head Inserts

Post by TrevorG » Mon Jun 03, 2019 9:00 pm

Many thanks, my memory of that time is sketchy, but don't remember robin talking about putting in inserts. As I was out of the UK a lot of the time, I had given him cart blanche on the scimitar mods and can remember most of what he did. It was a nice surprise when I bought the car a second time to find the original engine and the obvious mods still in place, albeit needing rebuilding!

The engine certainly looked as though it had been worked on after, and I'm still in the process of getting it back to what I remember.



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