SteveNorman
Member Since: 18 Sep 2008
Location: somerset
Posts: 18

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Camshaft timing belt interval change modification. | |
For those wondering about Diesel Timing belt change. Landrover seems to have changed their recommendations.
For pre 2012 vehicles on 15,000 service intervals, the interval is 150,000 miles or ten years whichever sooner
For post 2012 vehicles on 16,000 mile intervals it used to be 144,000 or 9 years
But it is now changed on the check sheets to 112,000 or 7 years.
Also bear in mind, that as the crankshaft sprocket has built in slack on the keyway to allow cam/crank timing adjustment, marking the belt & just renewing it isn't good enough. As soon as you loosen the bottom pulley the friction is lost & the sprocket moves. You need to lock the crankshaft and camshaft with the timing pins to ensure spot on cam timing.
I know a few people will reply, "I've fitted them, no problems, without doing that". You may have, but your cam timing is out, affecting starting, performance or fuel economy.
regards
Steve
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24th Oct 2018 4:06 pm |
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Steve D
Member Since: 19 Jan 2013
Location: Essexshire
Posts: 4109

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Re: Camshaft timing belt interval change modification. | |
SteveNorman wrote:For those wondering about Diesel Timing belt change. Landrover seems to have changed their recommendations.
For pre 2012 vehicles on 15,000 service intervals, the interval is 150,000 miles or ten years whichever sooner
For post 2012 vehicles on 16,000 mile intervals it used to be 144,000 or 9 years
But it is now changed on the check sheets to 112,000 or 7 years.
Also bear in mind, that as the crankshaft sprocket has built in slack on the keyway to allow cam/crank timing adjustment, marking the belt & just renewing it isn't good enough. As soon as you loosen the bottom pulley the friction is lost & the sprocket moves. You need to lock the crankshaft and camshaft with the timing pins to ensure spot on cam timing.
I know a few people will reply, "I've fitted them, no problems, without doing that". You may have, but your cam timing is out, affecting starting, performance or fuel economy.
regards
Steve
I've seen that done with the engine running and a Stanley knife used to split the belt! Unfortunately, that will only work on engines that have a woodruff key on the crank timing belt pulley. Past: FL2 TD4 HSE Auto
Evoque SD4 Dynamic Lux Auto
Present: Audi A3 S Line.
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24th Oct 2018 9:07 pm |
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