Tappet clearance?

[Leedy]

A bit of advice needed from the tuning gurus.
I’ve just swapped my R20 cam in my head for an R23
Checked all the tappet clearances and they come up as
1 (inlet) 13 thou
2 (ex) 13 thou
3 (inlet). 13
4 (ex). 13
5 (inlet). 13
6 (ex). 13
7 (inlet). 13
8 (ex). 14
Will these be ok. Or do I need to get them smaller?
The book states
Rallye 12 inlet & 14 exhaust?
Been over 30 years since last shimming a cam up?

Thanks in advance

[Yoshie]

Hi, if you have a look https://www.imps4ever.info/tech/camshaft.html it seems the exhausts ar OK but the inlets are on the wide side. Hope this helps.

Mike

[colin rooney]

You should be looking for 6 to 8 and 13 to 15 , thats what i was running on my R23

col

[Leedy]

I did think 6-8. As per the Haynes manual. But it also states 12-14 for the Rallye? Will do them at 6-8. Thanks guys. Much appreciated.

[Lotus-e-Clan]

All R series cams are 6 to 8 inlets and 12 to 14 exhaust - ie aim for 7 thou inlets, 13 thou Exhausts.