Re: 706 gasser rebuild

Posted by the tractor vet on January 03, 2006 at 20:03:02 from (4.124.73.181):

In Reply to: 706 gasser rebuild posted by nickWI on January 03, 2006 at 17:38:09:

One thing that most people overlook on the C seires engine is the bore classifcation on the top of the block buy the cylinders you will see A-B C-D now when you get a rebuild kit from aftermarket they only come in A-B class and if you have any holes that are in the C-D class then the new sleeves will be loose in the bore and stand a 99% chance of snaping the flang off and pulling the sleeve down around the crank. Now the next thing is the deck of the block it needs to be checked for strightness and if needed milled down to true up when this is done then ya have to recut the counter bore and set sleeve hight and here again it will be off 95% of the time . Also the head will need resurfaced . Also have both ends of the rods redone . Now what you can do is make that old 263 into a 291 with the upgrade sleeves and this will make all bores the same but this requires boring the block and that is not a big deal and it realy spices up and old 706 gasser. Now if you do this you will have to cut the timming back to nomore then 20 degrees at full throttel as you have now uped the comp and the timeing is a big deal on the 6 cylinder and also the use of 93 octain gas also when fitting the pistons each one MUST BE MIC. AND A CLEARANCE OF .004 skirt to wall clearance MUST BE MAINTAINED each piston is differant and fitted to the hole that you put it in.

Replies:

• Re: 706 gasser rebuild Ross 19:20:58 01/04/06 (0)

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