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Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
TR2/3/3A Downdraft tube......
- Thread starter karls59tr
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M_Pied_Lourd
Darth Vader
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It is bolted.
TR3driver
Great Pumpkin - R.I.P
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The fit into the block should be fairly snug. Spread the splits until it is. But, that's not enough to hold it, so there is also a brace that runs over to a pan bolt (which is extra long). I forget the transition offhand, but some engines had a flat brace and a spacer (to clear the lip of the pan), while others had a twisted brace and no spacer.
I used a little Permatex Aviation on the tube, last time I installed one. That joint does get wet with oil on hard turns.
I used a little Permatex Aviation on the tube, last time I installed one. That joint does get wet with oil on hard turns.
Don Elliott
Obi Wan
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As Randall says, the splits should be apart to be tight in the hole in the block. The problem with dripping oil occurs via those splits if you don't use a sealant.