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Hi Folks,
Quick yes or no question for anyone experienced working with Pinto's :
Ive been on to Paul Ivey regarding valves and he is not 100% sure that the Single groove RK8 cotters will mate perfectly with the Kent retainers supplied in an RL31 cam kit - can anyone confirm ??
cheers!
The RL31 kit i bought did not include any retainers, just studs, rockers and springs.
I did however buy alloy increased springheight retainers instead of machining the spring pockets.
/T
hmm i bought the kit second hand with little use. perhaps theyre standard retainers.
Still looking to find out if RK8 cotters are a direct replacement on the outside taper for Ford items if anyone knows! cheers
i couldnt find the answer either. and decided best course of action was simply buy the matching items from paul iveyQuote:Originally Posted by onecamohv
Thanks Graham, you didn't think to compare what you bought to the ford ones by any chance?Quote:Originally Posted by Graham
Although any minute difference not detectable by eye could be catastrophic...
Thanks! That is of great use, cheers.Quote:Originally Posted by alladdin
However, now we need a ford version to compare ☺️
nope and with an engine was about to be revved to the moon and back, well in the event it was only 8700rpm which isnt bad by pinto standards eye and educated guessing wasnt on my list of things to doQuote:Originally Posted by onecamohv
I had a chat with Andrew at GS Valves last year (actually almost exactly a year ago) since I had some damaged cotters in my Pinto with a set of REC valves.
What he said was;
"we had to change the collets from 5/16” imperial to 8mm metric, this was 2011. I have attached the drawings of the retainers, to try and identify which collets, as I only have the new 8mm design in stock, we also had to change the groove on the valve Diameter was 0.250”/0.248” now 0.245”/0.243”"
"10302 Retainer using 5/16” Collets, no longer avaiable
10303 Retainer using 8mm (RK8) Collets, @£1.50 each"
So as I understand it, the newer retainers use the RK8 cotters. The sketches I got of those retainers (for the RK8) show a 7 degree taper, the old ones a 7,75 degree taper.
Gustaf
yes i now recall a similar conversation with paul ivyQuote:Originally Posted by therealpinto
Thanks Gustaf, that was the exact answer i was after, really appreciate it.Quote:Originally Posted by therealpinto
I think its definitely safer to cough up the extra 100 quid or so for the REC retainers in this case as id never be able to effectively measure the taper of what i have.
As always, thanks TS members! :thumb:
I had a head K Lined and new single cotter valves fitted by Paul Gardner and the valve spring retainers looked like std Henry Ford to me.
The head will possibly be coming off soon to be changed for a different specification and cam so I'll have to wait until then to have a look, not a lot of help to you now.
Cheers! My gut feeling is they will be fine too, but I'm not taking the chance of dropping a valve on a 4k+ engine buildQuote:Originally Posted by Forest_rallying
Gardner wouldn't have used them if they weren't the correct ones.Quote:Originally Posted by onecamohv
i think his concern is your wording " looked like" :thumb:Quote:Originally Posted by Forest_rallying
That's what they did look like alladdin, although I never took a measurement. I can understand over head valves concern.Quote:Originally Posted by alladdin
