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8th November 2016, 07:42 | #21 |
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Until your chain breaks............ Not unknown.
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8th November 2016, 09:02 | #22 | |
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Must admit I've never heard of one breaking on an M47R engine though Trevor, which is good news, as mine have done a fair few miles now.
Quote:
Refit NOTE: Following front or rear timing belt refitment, it is possible that, after rotating the engine and positioning the crankshaft pulley to the 'SAFE' position, the timing marks on the rear timing gears may be misaligned. This misalignment is acceptable provided that the timing belt refitting procedure was carried out correctly. Curiouser and curiouser. If the alignment of the marks can vary, then it seems the only way to ensure the timing is spot on is to use the tools. Begs the question where is this variation coming from though? |
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8th November 2016, 09:48 | #23 |
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Could it be as simple as the marks on the pulleys are wrong from the factory? Hence the need to time with the tools in the sequence that Rover lay down.
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8th November 2016, 10:24 | #24 |
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8th November 2016, 14:16 | #25 |
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Neighbours BMW 3 Series with the same basic engine broke a chain at 210,000 miles, granted its rare but can happen, one of the sprockets was badly hooked. Car was sold spares or repair due to the damage done.
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8th November 2016, 14:37 | #26 |
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Hey Colvert, you know whats going to happen now don't you.LOL
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8th November 2016, 15:16 | #27 | |
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Quote:
You of course realize that his inaccuracy has nothing to do with how the marks was found in the first place.! The manual is just warning you not to panic, if the marks are a fraction out, when you find the safe spot again. That would make sense, and I think that is all there is to it. And of course the marks on the sprockets must align, like on any other car!! Anything else would be lunacy! And as for the three different tools, there are at least two different numbers for the sprockets! and two different cams for the various 6 cylinder engines. That gives 4 combinations! However if the sprockets are the correct ones for your engine, use the timing marks at the rear for the recommended setting, that is pure logic.
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8th November 2016, 16:24 | #28 |
I really should get out more.......
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All pulleys (sprockets) are the same regardless of the engine size and power output.
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8th November 2016, 16:29 | #29 |
I really should get out more.......
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8th November 2016, 16:33 | #30 |
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that might be, but the spare part numbers are different for the 2 and 2.5 V6! That is what I get if I look at Rimmers.
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