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Hello to all,

I am ready to replace my timing chain tensioners, the three external tensioners. I was planing to order the P253 tools to hold the cams in place but I posted some questions regarding the procedure on the Pelican Parts forum and had a response that told me that it is not necessary to do so. The procedure explained was to simply replace the tensioners one at a time starting with the IMS chain tensioner, soak the new tensioner in fresh oil and pump it in order to prime it. has anyone done this procedure, I am not comfortable pulling the tensioners with out locking the cams in place. I will repeat the post I placed on the Pelican forum as fallows. in reading Wayne's right up on the Pelican sight (cam replacement and timing chain tensioner replacement ) the questions had where. I understand that TDC for cylinder 1 and cylinder 4 are 360 degree off, can I lock both cans in place at one time and if not which side do I lock in place for the IMS chain tensioner? The issue with my car came from it sitting for six months (broken left foot) and on start up it their was a rattle. After lots of thought and stress I am certain the issue is a stuck chain tensioner.

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  • 2 weeks later...

I have been on the rennlist forum and I think I have the answer i was looking for. Pin the crank at TDC and replace one by one after priming the new tensioner with fresh oil.. I will have the parts in a week or so and will follow up with the results.

So how do you know when to replace them? How did your replacement work out?

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