alanwcoote Posted December 22, 2012 Report Share Posted December 22, 2012 What size of socket do i need to buy to fit the front crank pulley, it looks bigger than an inch ? But then the wife says my idea of an inch is way off the mark, Thanks in advance Patch Quote Link to post Share on other sites
Alanretired Posted December 22, 2012 Report Share Posted December 22, 2012 I recently removed the pulley on my 74 Tr6. The socket size is 1 1/8 inch AF. Regards Alan Quote Link to post Share on other sites
Steves_TR6 Posted December 22, 2012 Report Share Posted December 22, 2012 When i did that job on the last TR the nut did not want to undo. I found a Clarke mains powered impact driver to be a good solution, 450 NM !, undid the nut relatively easily, and Machine Mart have VAT Free offers presently :-) oh, 1 and 1/8th sounds right. steve Quote Link to post Share on other sites
AlanT Posted December 22, 2012 Report Share Posted December 22, 2012 (edited) If this has been tightened as required then, to undo it without an impact driver, you have to find a way to stop the crank revolving. The compession won't hold it. And there is too much "spring" in the transmission. I used a bar, bolted on where the pulley goes. This has its risks. The bolts aren't really big enough. Al. Edited December 22, 2012 by AlanT Quote Link to post Share on other sites
john.r.davies Posted December 22, 2012 Report Share Posted December 22, 2012 Remove starter. Insert into hole large screwdriver or block of wood as lever to engage the starter ring. Tighten crank bolt. NOT using impact driver! JOhn Quote Link to post Share on other sites
AlanT Posted December 22, 2012 Report Share Posted December 22, 2012 I am too cowardly to mess with the starter-ring teeth. Were you to break one off you would really wish you had used another method. The best method would be to remove the sump and clamp a bar across so as to jam the crank-web. I keep bits if 1.5 x 0.5 in flat around for doing this class of thing. Al. Quote Link to post Share on other sites
Ade_TR6 Posted December 22, 2012 Report Share Posted December 22, 2012 Talking of the crank pulley - does anyone know it it is still possible to get a boss and bolt to get rid of the pulley extension - I have had an electric fan for years and don't need the pulley extension any more... I have seen these items on state side supplier sites but was wondering if anyone had done similar here. Cheers Quote Link to post Share on other sites
alanwcoote Posted December 22, 2012 Author Report Share Posted December 22, 2012 Thanks Gents Interesting comments on do,s and donts, havnt got that far yet but taken on board. Patch Quote Link to post Share on other sites
AlanT Posted December 22, 2012 Report Share Posted December 22, 2012 Find out for sure if this "extension" piece has any other purpose. I think it may damp crankshaft resonance. Don't know for sure but somebody on here will. Al. Quote Link to post Share on other sites
heckler Posted December 22, 2012 Report Share Posted December 22, 2012 Talking of the crank pulley - does anyone know it it is still possible to get a boss and bolt to get rid of the pulley extension - I have had an electric fan for years and don't need the pulley extension any more... I have seen these items on state side supplier sites but was wondering if anyone had done similar here. Cheers Revington. T R sell rtr1028k crank washer & bolt set £19.91 .I have same one fitted 15 + years . Regards Chris Quote Link to post Share on other sites
elclem1 Posted December 22, 2012 Report Share Posted December 22, 2012 Hi Chris I had one made ages ago would you like it if I can find it? Quote Link to post Share on other sites
Guest ntc Posted December 22, 2012 Report Share Posted December 22, 2012 Find out for sure if this "extension" piece has any other purpose. I think it may damp crankshaft resonance. Don't know for sure but somebody on here will. Al. Al It is only an extension and does not effect the crankshaft Quote Link to post Share on other sites
heckler Posted December 22, 2012 Report Share Posted December 22, 2012 Andy pm sent. Chris Quote Link to post Share on other sites
Tim D. Posted December 22, 2012 Report Share Posted December 22, 2012 " rope trick" works as well. Take out plugs, put one ins of a piece of rope through the plug hole into a cylinder on compression part of cycle. Locks the engine nicely. Tim Quote Link to post Share on other sites
AlanT Posted December 22, 2012 Report Share Posted December 22, 2012 Oh I like that! Be quite hard to get in trouble doing this. Just might be be rigid enough if its very tight. I'll be to get interestedfeedback onhow this goes. Al. Quote Link to post Share on other sites
stuart Posted December 22, 2012 Report Share Posted December 22, 2012 If doing the rope trick make sure that you do it on the compression stroke of the relevant cylinder. This can also be used to change valve springs with the head on. Stuart.. Quote Link to post Share on other sites
rpurchon Posted December 22, 2012 Report Share Posted December 22, 2012 Talking of the crank pulley - does anyone know it it is still possible to get a boss and bolt to get rid of the pulley extension - I have had an electric fan for years and don't need the pulley extension any more... I have seen these items on state side supplier sites but was wondering if anyone had done similar here. Cheers ive made a few of these and sold them on fleabay in the past.lm sure ive some ally bar left. ill make some this weekend and put on ebay,.or pm me £12.50 richard Quote Link to post Share on other sites
Alec Pringle Posted December 23, 2012 Report Share Posted December 23, 2012 I do wonder about removing the extension . . . . Back when electric fans were pretty high tech and expensive, we put one on the Mk1 2000 rally car, replaced the old fan and extension with a boss and bolt, broke the crank on the next event. There was a GT6 2000PI hillclimb car as well, and that suffered the same experience. Couple of years later I broke a TR5 crank after removing the extension. OK, it might have been coincidental, but the 2 litre cars are significantly shorter stroke than the 2.5. To be fair, we were revving the balls off all three cars, enthusiastic teenagers and they were competing cars, but none had experienced crank problems prior to the change from mechanical to electrical fan. Possibly the error was to remove the extension from a balanced competition engine - it would have been part of the balancing equation. Therefore the influence of extension removal on a road engine may be less significant ? Any thoughts from those more experienced with competition 6-potters ? Cheers Alec Quote Link to post Share on other sites
Ade_TR6 Posted December 23, 2012 Report Share Posted December 23, 2012 Anyone able to translate... Looks like we've been spammed! Quote Link to post Share on other sites
AlanT Posted December 23, 2012 Report Share Posted December 23, 2012 When the guy who makes the power-steering came to look at my car we discussed the "extension". This is in the way of a power-rack. I told him that the WSM says that the fan and extension are "balanced" and need to be put back in their original positions. This lead us to consider if the assembly worked as a vibration damper. I don't doubt that you can take this off and drive about normally and be quite OK. Then you will get some stories, like above, where someone took it off, drove it hard and broke something. Like many things, you have to assess the risk for yourself. There is actually no way I can guarantee to put the fan/extension back as it was when built! Al Quote Link to post Share on other sites
Guest ntc Posted December 23, 2012 Report Share Posted December 23, 2012 That does apply to a 4 pot not so a 6 ,Alec if it was part of the full balance and then removed you found out what can happen Quote Link to post Share on other sites
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