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7th May 2024, 00:21 | #1 |
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Timing Belt Replacement Questions
I think I've read most of the excellent threads on this KV6 job however before I start perhaps someone could answer a few questions for me. Apologies if they have been asked before.
1. Are the rear inlet camshaft pulleys keyed to the inlet camshafts? 2. Is the crankshaft pulley keyed to the crankshaft? 3. One thread says "Removal of the crankshaft pulley bolt requires the car to be in a high gear with brakes applied (manual). Automatic is as simple as leaving the car in park". How does leaving an automatic in park lock the engine? 4. The same thread goes on to say "Torque for the 2.5L V6 bolt is 160Nm. There is a special tightening sequence, tighten to 100Nm using torque wrench, then tighten 60 degrees, then 30 and 30 again". Can someone help me understand what is meant by 'then 30 and 30 again'. Perhaps the poster rephrased the service manual instruction. Last edited by TeeCeeColley; 7th May 2024 at 12:43.. |
7th May 2024, 06:20 | #2 | ||||
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Thanks for posting your questions Terry. I have done this job myself so can answer them for you.
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Best wishes, Simon P.S. Could you give a link please Terry to the thread you've quoted in your questions 3 & 4?
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. Last edited by SD1too; 7th May 2024 at 06:24.. Reason: Adding P.S. |
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7th May 2024, 07:10 | #3 |
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I use an impact wrench like this: https://www.screwfix.com/p/dewalt-dc...nch-bare/890fu
It makes light work of undoing the crank pulley bolt
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Matt 2001 Rover 75 Connoisseur SE 2.5 (BRG) 1999 Rover 75 Club 2.5 (Dorchester Red) 1973 Triumph Dolomite (Honeysuckle) Last edited by Matt_75; 7th May 2024 at 10:10.. |
7th May 2024, 09:16 | #4 | ||
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The 100Nm using torque wrench, then tighten 60 degrees, then 60 and 30 again". is for the diesel crank shaft bolt & pulley, has stated in the graph by gates. 1 2 This is a diesel engine which was tightened up with a rattle gun. 3 4 5 6 7 8 So in my opinion always best to use the proper tools for the job. 9 10 11
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Arctic Givology Learn to Give Everything is Achievable ad altiora tendo. Check out our Nano meet dates http://www.midlandsnanomeets.co.uk/ http://www.the75andztclub.co.uk/index.php?thepage=howto " You do the work , we supply the expertise " Last edited by Arctic; 7th May 2024 at 15:40.. |
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7th May 2024, 12:40 | #5 | |
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There are so many threads on the subject of timing belt replacement it's difficult to keep track of them. As requested here is a link to the one I referenced above. https://the75andztclub.co.uk/forum/s...d.php?t=254441 Cheers, Terry |
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7th May 2024, 22:14 | #6 |
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For KV6 belt replacement I always suggest going on YouTube and watching the factory KV6 belt change video.
I don't do the job very often so I have my laptop in the garage and follow the steps shown in the video. It is a big help, although it really does pay to have the shop manual as well for the torque values etc. One note, the video shows an engine with the earlier model rear cam pulleys but other than using a different rear cam locking tool the information is pertinant to all KV6's https://www.youtube.com/watch?v=2fFx8SPiTSc&t=440s
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ZT-T190, Anthracite, LHD, Left the Line on June 24, 2002, Sold new in Switzerland, spent time in Germany, Imported to Canada in September 2021 Last edited by Rich in Vancouver; 7th May 2024 at 22:17.. |
8th May 2024, 07:25 | #7 | ||
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Terry; thanks for the link. Simon
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10th May 2024, 21:01 | #8 | |
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cambelt change
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12th May 2024, 05:26 | #9 | |
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And I love the old time technician in his shop coat and shirt and tie, and the flash presenter in his Talking Heads pastel suit. They do give some good information though.
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ZT-T190, Anthracite, LHD, Left the Line on June 24, 2002, Sold new in Switzerland, spent time in Germany, Imported to Canada in September 2021 Last edited by Rich in Vancouver; 12th May 2024 at 05:31.. |
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12th May 2024, 14:55 | #10 |
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All in all ,not a bad video i suppose. Apart from the slipping off whilst setting the tensioner ! My own preference would have been, to have the old timing rear cams set up plates as displayed in the vid. It looks a much easier and better way to align and set up the rears , plus sliding on the set up. I believe this was for the original KV6 engines first used. Not sure if those plates were used on the earliest R40 ..
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