Andy Field Posted April 1, 2020 Report Share Posted April 1, 2020 Hi, My TR4 has the conventional set up of a wide fan belt and lucas dynamo. The dynamo cannot swing enough towards the engine to allow the belt to become clear of the dynamo pulley so as to remove and refit. Is this how it should be and the procedure then is to remove the dynamo pulley or water pump pulley to allow the removal/fitting of the belt? Thanks Andy Quote Link to post Share on other sites
Z320 Posted April 1, 2020 Report Share Posted April 1, 2020 Hi Andy, yes, this is always a bit tight, but I never had to put the pulleys of. The classic belt is a typ "20", 900 mm long, called so becauses 20 mm wide. But this is not rocket technic and not every "20" is 20 mm wide, and 900 mm long is not always 900 mm long. I own one "20", indeed 20 mm wide, another only 19 mm wide and easier to fit. Look for another one, best a "Flennor 20X900", toothed and more flexible. Ciao, Marco Quote Link to post Share on other sites
Rob Salisbury Posted April 1, 2020 Report Share Posted April 1, 2020 It's brutal but you have to carefully leaver the belt and turn the belt and all three pulleys to ease the belt off 1 of the pulleys (plugs out and use the blades of the fan), the next problem is getting the belt past the steering rack, loosen the engine mounts and jack up the front of the engine to gain clearance, reverse procedure to replace the belt. Cheers Rob Quote Link to post Share on other sites
Andy Field Posted April 1, 2020 Author Report Share Posted April 1, 2020 6 minutes ago, Z320 said: Hi Andy, yes, this is always a bit tight, but I never had to put the pulleys of. The classic belt is a typ "20", 900 mm long, called so becauses 20 mm wide. But this is not rocket technic and not every "20" is 20 mm wide, and 900 mm long is not always 900 mm long. I own one "20", indeed 20 mm wide, another only 19 mm wide and easier to fit. Look for another one, best a "Flennor 20X900", toothed and more flexible. Ciao, Marco Thanks Marco, I'll check the length of the belt and I have a look at the one you suggest. Quote Link to post Share on other sites
Andy Field Posted April 1, 2020 Author Report Share Posted April 1, 2020 6 minutes ago, Rob Salisbury said: It's brutal but you have to carefully leaver the belt and turn the belt and all three pulleys to ease the belt off 1 of the pulleys (plugs out and use the blades of the fan), the next problem is getting the belt past the steering rack, loosen the engine mounts and jack up the front of the engine to gain clearance, reverse procedure to replace the belt. Cheers Rob Thanks Rob, I had wondered whether I had a bodged set up but from what you are saying it appears to be normal and brute force is required. I am sure I have changed the belt before and had no issue getting it past the steering rack, but having read many times that you need jack the engine up perhaps I have not. I have a spare so I will see if I can get it past. Quote Link to post Share on other sites
Z320 Posted April 1, 2020 Report Share Posted April 1, 2020 (edited) Hi, I don't know if I could determine the lenght correctly exact to +\- some few millimeters. And this is it about Marco Edited April 1, 2020 by Z320 Quote Link to post Share on other sites
Motorsport Mickey Posted April 1, 2020 Report Share Posted April 1, 2020 Whilst you are at wiggling the belt past the rad and over the fan fit 2 belts, use one and secure one as a spare in position around the front of the engine timing cover using lockties, then when it's peeing it down with rain at the side of the road at 10 pm it's easy to cut the ties on the spare and just move it forward and onto the pullies. Of course since I've done this I've never had any belt trouble so it works as a deterrent to the car also. Mick Richards Quote Link to post Share on other sites
Z320 Posted April 1, 2020 Report Share Posted April 1, 2020 (edited) A friend of mine did this with his pre war Adler Trumpf Junior. To change the belt on this car the gera box must be taken out! The pulley is on the gear box shaft (frond wheel drive), see this photo from the internet. Another idea is a belt like this Edited April 2, 2020 by Z320 more details and photos added Quote Link to post Share on other sites
BlueTR3A-5EKT Posted April 2, 2020 Report Share Posted April 2, 2020 Simple solution there Marco. Fenner Powertwist belting, and it almost colour matches..... Peter W Quote Link to post Share on other sites
Tony_C Posted April 2, 2020 Report Share Posted April 2, 2020 10 hours ago, Motorsport Mickey said: Whilst you are at wiggling the belt past the rad and over the fan fit 2 belts, use one and secure one as a spare in position around the front of the engine timing cover using lockties, then when it's peeing it down with rain at the side of the road at 10 pm it's easy to cut the ties on the spare and just move it forward and onto the pullies. Of course since I've done this I've never had any belt trouble so it works as a deterrent to the car also. Mick Richards Yes Mick, this is what we were taught years and years back...... I thought at the time, it would be the difference between a DNF and outright Rally win! However, ditto and also no belt trouble ever since.. Andy, anyone else, need a new belt? Quote Link to post Share on other sites
BlueTR3A-5EKT Posted April 2, 2020 Report Share Posted April 2, 2020 Buy two belts. We early car users fit a belt, run it for a few hundred miles to stretch it , then replace it with another new belt. Place the removed and now pre stretched belt inside the spare wheel for storage with appropriate replacing tools. The starting handle is of limited use if you are on your own as the new belt insists on not winding onto the last pulley. Peter W Quote Link to post Share on other sites
stillp Posted April 2, 2020 Report Share Posted April 2, 2020 16 hours ago, Rob Salisbury said: turn the belt and all three pulleys to ease the belt off 1 of the pulleys (plugs out and use the blades of the fan) Doesn't work with a Kenlowe! Pete Quote Link to post Share on other sites
Rob Salisbury Posted April 2, 2020 Report Share Posted April 2, 2020 You're right there Pete, ..... after that there's always the nut behind the wheel!! (or should it be in front of the wheel?!) Quote Link to post Share on other sites
Z320 Posted April 2, 2020 Report Share Posted April 2, 2020 I'm so sorry with that poor guys who can not turn the crankshaft on the fan... Quote Link to post Share on other sites
stillp Posted April 2, 2020 Report Share Posted April 2, 2020 I feel even more sorry for the folks whose fan throws a blade off! Pete Quote Link to post Share on other sites
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