Rocker cover bolts sizes ? UNC/UNF what are they ?
Rocker cover bolts sizes ? UNC/UNF what are they ?
Author
Discussion

hiltonig

Original Poster:

3,153 posts

237 months

Monday 3rd May 2010
quotequote all
Ok I should really get some thread gauges !!, what are thread/ length are the rocker cover bolts ? I would like to replace the standard funny head type to a stainless item.

spend

12,581 posts

280 months

Monday 3rd May 2010
quotequote all
1/4" UNC IIRC

Colin RedGriff

2,541 posts

286 months

Monday 3rd May 2010
quotequote all
Don't know the size but got tired of struggling with the silly head design and the heater pipes getting in the way of the socket so bought some of these a few days ago

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&am...


Derek Smith

49,759 posts

277 months

Monday 3rd May 2010
quotequote all
hiltonig said:
Ok I should really get some thread gauges !!, what are thread/ length are the rocker cover bolts ? I would like to replace the standard funny head type to a stainless item.
The bolts are of bi-hex - that's 12-point - type. They are a special order item generally at Land Rover dealers.

Part numbers ERR7370 and ERR7371. Two numbers as the bolts are of two different lengths.

Full details in the RV8 Resource: www.rv8r.co.uk

rev-erend

21,619 posts

313 months

Monday 3rd May 2010
quotequote all
UNC.

spend

12,581 posts

280 months

Monday 3rd May 2010
quotequote all
I do have a cunning alternative after much research. Bolts are crap & fiddly to fix - particularly with rubber gaskets. I am having made something like a small 1/4" drive socket that will screw on a stud all you need to fit is a 1/4" extension bar. Not cheap, but no more aggravation hehe