Frogland Posted July 15, 2010 Share Posted July 15, 2010 I'm replacing the timing belt,water pump ,p-gasket,auxilary belt tensioner pulley on my 300 tdi tomorrow and wanted to be clear on a few things. 1.The viscious fan nut is undone clockwise ,is that when facing the vehicle ? 2.which bolts need to be threadlocked,I P pump bolts ,crankshaft bolt,waterpump bolts ? 3.would it be best to test the engine after the belt change before doing the tappets or do it all at once and then turn the engine ? Quote Link to comment Share on other sites More sharing options...
Gromit Posted July 15, 2010 Share Posted July 15, 2010 1.The viscious fan nut is undone clockwise ,is that when facing the vehicle ? Yes. 2.which bolts need to be threadlocked,I P pump bolts ,crankshaft bolt,waterpump bolts ? The crank bolt needs threadlock. None of the others need it. You shouldn't need to undo the IP pump pulley bolts unless resetting the timing. Can't remember if they are threadlocked. I suspect not, but it wouldn't hurt 3.would it be best to test the engine after the belt change before doing the tappets or do it all at once and then turn the engine ? Personally, I do one thing at a time, make sure it runs ok, then move on to the next job. Quote Link to comment Share on other sites More sharing options...
markyboy Posted July 15, 2010 Share Posted July 15, 2010 I'm replacing the timing belt,water pump ,p-gasket,auxilary belt tensioner pulley on my 300 tdi tomorrow and wanted to be clear on a few things. 1.The viscious fan nut is undone clockwise ,is that when facing the vehicle ? 2.which bolts need to be threadlocked,I P pump bolts ,crankshaft bolt,waterpump bolts ? 3.would it be best to test the engine after the belt change before doing the tappets or do it all at once and then turn the engine ? 1. Yes, it's a left hand thread, therefore rotate clockwise as you look at it from the front of the engine to undo it. 2. AFAIK only the crank pulley retaining bolt, but it wouldn't hurt on the IP bolts. I wouldn't put it on the water pump bolts as they can corrode and be a pig to get out. 3. Doesn't make much difference really. I'd do them after fitting the new belt and before starting the engine but I don't think it matters. HTH Mark Edit: Beaten to it by Gromit. Quote Link to comment Share on other sites More sharing options...
Gromit Posted July 15, 2010 Share Posted July 15, 2010 I wouldn't put it on the water pump bolts as they can corrode and be a pig to get out. To add to this, I'd put some copperslip on the waterpump bolts and they do shear when corroded. Quote Link to comment Share on other sites More sharing options...
Frogland Posted July 15, 2010 Author Share Posted July 15, 2010 Thanks for the speedy replies guys,i've spent months getting all the tools and parts together to do this i even lay a nice flat slab of concrete just for working on the landy and it's hard to beleive i'm actually going to get on with it,i'm sure those waterpump bolts will give me greif i mean it can't all go like clockwork can it ??? Quote Link to comment Share on other sites More sharing options...
markyboy Posted July 15, 2010 Share Posted July 15, 2010 i'm sure those waterpump bolts will give me greif i mean it can't all go like clockwork can it ??? You'd be very lucky if it did.... Quote Link to comment Share on other sites More sharing options...
errol209 Posted July 15, 2010 Share Posted July 15, 2010 We'd be very jealous if it did... Quote Link to comment Share on other sites More sharing options...
Gromit Posted July 15, 2010 Share Posted July 15, 2010 I just wouldn't believe you Quote Link to comment Share on other sites More sharing options...
Frogland Posted July 16, 2010 Author Share Posted July 16, 2010 OK first surprise,the camshaft pulley is only held on by 3 bolts,the 4th cannot stay on due to the fact the threaded slot is broken,up until now It hasn't posed or created any problems.Can I carry on with just 3 bolts ? Quote Link to comment Share on other sites More sharing options...
errol209 Posted July 16, 2010 Share Posted July 16, 2010 OK first surprise,the camshaft pulley is only held on by 3 bolts,the 4th cannot stay on due to the fact the threaded slot is broken,up until now It hasn't posed or created any problems.Can I carry on with just 3 bolts ? BAD idea. It is supposed to have 4, to even out the stresses. Quote Link to comment Share on other sites More sharing options...
Frogland Posted July 16, 2010 Author Share Posted July 16, 2010 so this means a new timing cover Quote Link to comment Share on other sites More sharing options...
western Posted July 16, 2010 Share Posted July 16, 2010 better to replace that bit of the timing case the 4 bolt hub is not supplied as a seperate part, otherwise the fan hub may run out of true & create further problems. you may be able to source another timing case front cover from enay or a LR breaker. Quote Link to comment Share on other sites More sharing options...
Frogland Posted July 16, 2010 Author Share Posted July 16, 2010 ok just to be clear on that,I need a whole timing case front cover ? (sorry just going to dry my tears)- part no. ? Quote Link to comment Share on other sites More sharing options...
western Posted July 16, 2010 Share Posted July 16, 2010 Unfortunatly Yes, item 14, page 220 found this one on Ebay 150467881477 see photo below Quote Link to comment Share on other sites More sharing options...
Frogland Posted July 16, 2010 Author Share Posted July 16, 2010 Ok, new part ordered, shame everything was going smoothly. I'd left the viscious fan lying in the sun, when i picked it up I noticed a trace of oil on the piece of wood that was underneath,is this something to be concerned about ? Quote Link to comment Share on other sites More sharing options...
Gromit Posted July 16, 2010 Share Posted July 16, 2010 I'd left the viscious fan lying in the sun, when i picked it up I noticed a trace of oil on the piece of wood that was underneath,is this something to be concerned about ? The viscous fan works using magic liquid that becomes solid as it heats up, thus locking the fan. Sounds like the fan hub is leaking the magic fluid. See if it still works when you reassemble. If not, a new fan hub is a lot of money. Alternatively, you could convert to an electric fan from a scrappy for not much money. Quote Link to comment Share on other sites More sharing options...
errol209 Posted July 16, 2010 Share Posted July 16, 2010 The viscous fan works using magic liquid that becomes solid as it heats up, thus locking the fan. Sounds like the fan hub is leaking the magic fluid. See if it still works when you reassemble. If not, a new fan hub is a lot of money. Alternatively, you could convert to an electric fan from a scrappy for not much money. Or 32 of your hard-earned GBpounds on Eblag Quote Link to comment Share on other sites More sharing options...
Frogland Posted July 16, 2010 Author Share Posted July 16, 2010 How do I test to see if it's still working ? Quote Link to comment Share on other sites More sharing options...
errol209 Posted July 16, 2010 Share Posted July 16, 2010 How do I test to see if it's still working ? It should allow the fan to spin relatively freely when at room temperature, and lock almost solid at 70 - 800. Heat gun on a low setting (mind your fingers, and don't let it get silly hot). Quote Link to comment Share on other sites More sharing options...
errol209 Posted July 16, 2010 Share Posted July 16, 2010 Or buy this one Quote Link to comment Share on other sites More sharing options...
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