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Topic: Removing tensioner valve? (Read 465 times) |
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tlundkvi
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Ex. Scorpio 2.9 24V -95
Posts: 909
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Removing tensioner valve?
« on: Apr 12th, 2010, 11:30am » |
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Hi all,
I've run out of easy, non-invasive tricks to replace the tensioner valve.
A crosscut of the tensioner is more or less like this (not in proportion) :
It kind of looks like that you could get something similar to an allen key into the oil chamber via the side blanking plug. Tried it, but it's really stuck. I thought of drilling the opening on the valve slightly bigger and pull it out with a screw. I also thought of putting it in the freezer in hope of loosing it up a bit. Why on earth did they have to put the second blanking plug on the side for  .
Does anybody know of a good tool/trick for this, before I start drilling it out?
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Matt
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Manual'd and a 4.0 in the making
Posts: 2816
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Re: Removing tensioner valve?
« Reply #1 on: Apr 12th, 2010, 5:35pm » |
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get it hot, they tend to have a locking agent on them to stop vibrations making them lose,
blow torch or better an oxy acetylene touch, get it glowing but dont melt it !
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FDS2000 Scans - Birmingham
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tlundkvi
Full Member
Ex. Scorpio 2.9 24V -95
Posts: 909
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Re: Removing tensioner valve?
« Reply #2 on: Apr 12th, 2010, 8:53pm » |
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Thanks,will try!
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a900one
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A scorpio is for life not just for christmas
Posts: 980
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Re: Removing tensioner valve?
« Reply #3 on: Apr 20th, 2010, 9:05pm » |
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Another way is to fill it with grease and where the plunger goes get a rod or anything that is a good fit and give it a hit with a hammer, this should hydralic it out. Did you buy the plunger and valve off ebay, I have a kit to fit sometime, keep me informed how you get on.
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tlundkvi
Full Member
Ex. Scorpio 2.9 24V -95
Posts: 909
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Re: Removing tensioner valve?
« Reply #4 on: Apr 20th, 2010, 9:48pm » |
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Hi, thanks for the trick, never thought of that, although the figure shows the core principle  . I haven't had the time to try Matt's trick yet either, if it's glued with threadlock it probably has to be heated anyway. But with this approach there could ofcourse be a possibility the valve is leaking.
Yes, I bought the kit on ebay, both plungers + 2 valves. I also got hold of an old used one (the middle) to practice on. The good thing is the body is fully serviceable. I was BTW told by Burton these were the latest developments of Cosworth, so the kit should uprate the tensioners to later spec.
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tlundkvi
Full Member
Ex. Scorpio 2.9 24V -95
Posts: 909
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Re: Removing tensioner valve?
« Reply #5 on: Apr 20th, 2010, 9:54pm » |
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It's BTW very strange that parts that were supposed to be obsolete two years ago now turn up on ebay etc.
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