Beagler Posted January 25, 2023 Share Posted January 25, 2023 Hi, Can somebody please tell me what this pulley is for. Is it just a tension idler. What sort of job is it to remove and replace the bearing.Thanks Link to comment Share on other sites More sharing options...
SM25T Posted January 25, 2023 Share Posted January 25, 2023 Looks like a sprung tensioner to me. Link to comment Share on other sites More sharing options...
Beagler Posted January 25, 2023 Author Share Posted January 25, 2023 The tensioner is on the left of this I believe. There is no apparent adjustment and looks fixed as an idler. As my thread includes this engine is a Ford 1.6 Sigma. Link to comment Share on other sites More sharing options...
7 wonders of the world Posted January 25, 2023 Share Posted January 25, 2023 guide pulley to reduced slap on long belt runs, they are also often used to increase belt to pulley surface area contact, by increasing wrap around. Link to comment Share on other sites More sharing options...
Beagler Posted January 25, 2023 Author Share Posted January 25, 2023 I thought it was but wanted to make sure it was nothing more complex. There is a movement in it and wish to replace it. Doesnt seem to be listed in CC parts on web. Link to comment Share on other sites More sharing options...
Wrightpayne Posted January 25, 2023 Share Posted January 25, 2023 Have you googled the part numbers on the front of the pulley? Probably a ford part rather than caterham!My Porsche 996 has three steel idler pulleys that are £60 each - they all contain the same standard size bearing which is £18 each so its a cheap swap for anyone mechanically minded with a vice / press. Link to comment Share on other sites More sharing options...
Dave connors Posted January 25, 2023 Share Posted January 25, 2023 I think 36E306A is the part you are after on the Caterham site Link to comment Share on other sites More sharing options...
Area Representative Iain McCallum Posted January 26, 2023 Area Representative Share Posted January 26, 2023 it is just the belt tensioner and can be removed easily. Mine was rattling a lot so i just peened over the edges to take up the slack. Easy and cheap! Link to comment Share on other sites More sharing options...
Beagler Posted January 26, 2023 Author Share Posted January 26, 2023 Thanks gentlemen for your help. Link to comment Share on other sites More sharing options...
Beagler Posted January 26, 2023 Author Share Posted January 26, 2023 Anyone know the torque setting for the pulley centre bolt and also the nuts holding the tensioner to the block please. Link to comment Share on other sites More sharing options...
Area Representative Iain McCallum Posted January 26, 2023 Area Representative Share Posted January 26, 2023 I couldn't find any torque figures when i did mine, so just did them tight! It is a non-stressed part so no issues. Link to comment Share on other sites More sharing options...
Beagler Posted January 26, 2023 Author Share Posted January 26, 2023 Thanks Macca. I also cannot find any. Everything else on the egine but not these torque figures. Link to comment Share on other sites More sharing options...
Beagler Posted January 26, 2023 Author Share Posted January 26, 2023 Think I'll use a tiny bit of loctite. Link to comment Share on other sites More sharing options...
aerobod - near CYYC Posted January 26, 2023 Share Posted January 26, 2023 If in doubt, there are always standard maximum torque values based on bolt class, for example: https://www.engineeringtoolbox.com/metric-bolts-maximum-torque-d_2054.html Link to comment Share on other sites More sharing options...
Beagler Posted January 26, 2023 Author Share Posted January 26, 2023 Yes I looked at that but found all the bolt variables confusing when not known for these bolts. Link to comment Share on other sites More sharing options...
aerobod - near CYYC Posted January 26, 2023 Share Posted January 26, 2023 Assume 8.8 for metric bolts, with no other info available, but the head should be marked. Link to comment Share on other sites More sharing options...
Beagler Posted January 26, 2023 Author Share Posted January 26, 2023 Thanks will have another look. Link to comment Share on other sites More sharing options...
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