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The mkiv Supra Owners Club

buckets n shims


Tourniquet

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Replaced my stem seals a few weeks ago and only just getting round to putting it all back together but Im having problems with one of the buckets. All of cam 1's but number 11 have gone in and rotate smoothly although some were a pain in the arse. This one was solid and trying to get it out again isn't happening, it's just jammed tight although it does look straight. Any tips on how I can get this out without damaging it as Ive done the job pain free and dont want to trip up on a relatively easy part like sticking the buckets back in although i am getting to the point where the nearest tool will be launched at the windscreen any time now !!!!

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When I did the job, it only took a slight tap and the tool came into contact with the bucket bore, that is why I stopped after bucket no 1 & rethank my approach. It didn't take much to tap the tops of those bore & stop the buckets sliding in easily

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If you have got dirt wedged down the side they can really seize into place. Have had to TIG on a threaded stud for a slide hammer before now when correcting issues people have had with OHC tappet buckets. Total cleanliness is vital. This why I am very loathe to do stem seals in situ on all but old nails.

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  • 3 weeks later...

Got the 'ump with it and left it a couple weeks to 'woosar' but just started it again today, still no joy !!!! Most of them on cam 2 wont go in and there's a couple that can be turned by grips quite easily but wont budge with fingers as they do in cam 1.

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HOORAH the bugger is OUT !!!!!!

 

Without resorting to violence and foul language the hero of the hour Baby Dave Osmond, calmly rummaged around with several tools you wouldnt have thought of using straight away and basicaly stuffed something in the gap between bucket and shim (with shim removed) and gently began turning it back and forth until it freed itself. Now cleaned and ready to go back in, I'm just hoping the bit of muscle put behind getting some in and out hasn't damaged anything not obvious to the eye !

 

What exactly do the buckets do and does it matter if they are re-used as I wasn't advised to buy new ones in the list of gubbings to get in the guide.

 

Oh one worrying thing I wanted to check is bucket one on cam two seems to have droopped much lower than the rest - what could be the reason for this and is it bad !!!!

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If a bucket is lower on one valve than the average, by more than say 10 thou inch, it usually means that valve is bent and not closing fully, or some other reson stops it closing properly.

 

If he can see it by eye something must be very wrong!!!!!!

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  • 2 weeks later...
It seems as though the spring compressed or something as after moving it round a few times as it spun freely as it should it rose back up :-)

Place your bets - will it explode on start up ???

 

No because the engine is non interferance

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