Ian Vincent Posted January 24, 2014 Report Share Posted January 24, 2014 I know this topic has come up loads of times but I have been clearing out some cupboards and found an old Ford 105E book dating from 1967 which contains the following method for adjusting tappets. Rotate the engine until numbers 1 and 6 valves are both open by an equal amount. When the valves are in this position, numbers 3 and 8 can be checked. Repeat the operation for all valves using the table below: Valves open Valves to adjust 1 and 6 3 and 8 3 and 8 1 and 6 2 and 4 5 and 7 5 and 7 2 and 4 Does anyone know if this method would work for a TR four cylinder engine? Rgds Ian Quote Link to post Share on other sites
RogerH Posted January 24, 2014 Report Share Posted January 24, 2014 Hi Ian, it should work as it is a variation on the 'rule of 9'. Valves 1 and 6 etc do not open at the same time so by having them open equally you are relying on the large plain area behind the cam lobe to allow the effect to take place. Knowing when they are open equally may be slightly more hap-hazzard than seeing when one is fully open/down. Roger Quote Link to post Share on other sites
TorontoTim Posted January 24, 2014 Report Share Posted January 24, 2014 As an aside...my workshop manual says that they must be adjusted "cold". It's minus 20 here, is that cold enough, or do I need to wait until the sun goes down? Quote Link to post Share on other sites
Guest ntc Posted January 24, 2014 Report Share Posted January 24, 2014 Tim No engine temp is all you need. Quote Link to post Share on other sites
TorontoTim Posted January 24, 2014 Report Share Posted January 24, 2014 Apologies, I probably should have finished my question with this: Quote Link to post Share on other sites
RogerH Posted January 24, 2014 Report Share Posted January 24, 2014 Also keep the garage door open Roger Quote Link to post Share on other sites
marki Posted January 24, 2014 Report Share Posted January 24, 2014 Slightly off subject. Has anyone used a CLICK ADJUST I have been given one with no instructions ? Cheers Mark. Quote Link to post Share on other sites
Motorsport Mickey Posted January 24, 2014 Report Share Posted January 24, 2014 They are mentioned in one of the other threads, their trade name was Sporq or some such sounding noise, got one in my toolbox, never satisfactorily adjusted tappets with it, the garage equivalent of a bread maker. Mick Richards Quote Link to post Share on other sites
peejay4A Posted January 24, 2014 Report Share Posted January 24, 2014 SPQR. I have one and it doesn't work very well. Quote Link to post Share on other sites
Motorsport Mickey Posted January 24, 2014 Report Share Posted January 24, 2014 Snap...and so says anybody who's had one, chuck it. Mick Richards Quote Link to post Share on other sites
bob Posted January 24, 2014 Report Share Posted January 24, 2014 I've never used one, and frankly haven't been tempted, as whatever happens you still have to tighten the locknut on the adjuster and the gap always changes when you do so I can't see a great advantage with it. However, mostly it's a lesson many people will have to learn for themselves, and for those who want to the instructions can be found on the Gunsen website. Bob Quote Link to post Share on other sites
RogerH Posted January 24, 2014 Report Share Posted January 24, 2014 Rather than use feeler gauges or mechanical things why not simply rely on the thread size. I think the rocker arms have a 1/4UNF thread on the adjusters. These have 28TPI = 0.0357" per turn. (apprx 0.036") So this works out at 10 degrees/0.001" With the adjuster screwed gently down it can then be backed off whatever many degrees (0.010" = 100 degrees) using some cunning protractor. The lock nut can then be nipped up. Like the mechanical adjusters it overcomes the little deformation on the rocker face that can upset some readings. I shall now retire to bed feeling very smug, in fact even smuggerer. Roger Quote Link to post Share on other sites
peejay4A Posted January 24, 2014 Report Share Posted January 24, 2014 This is effectively what the SPORQ does Roger. Badly. Then, as Bob says, you nip the locknut and the gap changes. Quote Link to post Share on other sites
Ashley James Posted January 24, 2014 Report Share Posted January 24, 2014 Mine is a Snap On tappet adjuster. Quote Link to post Share on other sites
RogerH Posted January 24, 2014 Report Share Posted January 24, 2014 I've never had a SPQR (isn't that a Roman legion banner) so didn;t know how it worked. With my idea a 10 degree movement (that's almost a three point turn) will only give 0.001" hardly worth worrying about - or is it!!! Roger Quote Link to post Share on other sites
marki Posted January 24, 2014 Report Share Posted January 24, 2014 Now I know why he gave it me........ Bin it is then ( probably back of the cupboard ) Mark. Quote Link to post Share on other sites
RogerH Posted January 25, 2014 Report Share Posted January 25, 2014 Hi Mark, don't throw it away. Save it for an occassion when somebody asks if they can borrow it and then give it to them for keeps. For a short while you will be a hero. Roger Quote Link to post Share on other sites
marki Posted January 25, 2014 Report Share Posted January 25, 2014 Very cunning Roger, will do. I've still got a Betamax recorder somewhere wonder of I can palm that off at the same time ? Mark. Quote Link to post Share on other sites
BrianC Posted January 25, 2014 Report Share Posted January 25, 2014 It's a long time since I used my SPQR tappet adjuster, but I do remember it was essential (and fairly obvious ) to hold the adjuster with a screwdriver whilst tightening the locknut. Quote Link to post Share on other sites
peejay4A Posted January 25, 2014 Report Share Posted January 25, 2014 The clicky handle is the screwdriver on mine. Quote Link to post Share on other sites
BrianC Posted January 25, 2014 Report Share Posted January 25, 2014 I found a decent quality screwdriver allowed more anti-clockwise resistance to be applied than with the tool itself. Still, as Roger suggests, does such a small amount of tightening really matter? It's just a tractor engine but we (myself included) kid ourselves it's a sportscar so everything has to be spot-on. Quote Link to post Share on other sites
lynchpin Posted January 25, 2014 Report Share Posted January 25, 2014 I"ve got a very good tappet adjuster called Dave (my brother) very good and it works properly every time.. Phil.. Quote Link to post Share on other sites
RogerH Posted January 25, 2014 Report Share Posted January 25, 2014 If the rocker adjuster screw had an 'allen' socket head then it would be a piece of p*ss. Roger Quote Link to post Share on other sites
TR NIALL Posted January 25, 2014 Report Share Posted January 25, 2014 If the rocker adjuster screw had an 'allen' socket head then it would be a piece of p*ss. Roger That's the Solution,are you Making Samples. Quote Link to post Share on other sites
RogerH Posted January 25, 2014 Report Share Posted January 25, 2014 Hi Niall, I could make you one but it would be like liquorice Roger Quote Link to post Share on other sites
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