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terry

Pedigreed Bulldog
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Posts posted by terry

  1. 2 hours ago, fjh said:

    The older two valve V8 would make a popping sound when a valve seat came loose and could really be heard when shutting down the engine pop pop pop as it was being shut down! the seat was big enough it would not fall out un like the 4 valve V8 ! That said the six rarely had seat issues 2 or 4 valve! Just sayin!

    I had a 237 engine that had a loose exhaust seat, ran quite awhile that way, had the pop,pop when you let off it or coasted with it, when I pulled the head you could see where it was moving up and down in the carbon buildup.   Terry

    • Like 2
  2. 24 minutes ago, blackdog2 said:

    The all red 58-20-20 light weight is 32,500 smooth body high lift gate hardox body Did a 6-lane RT-1 tear out 1+ mile asphalt , concrete , trolly track's not 1-dent or wear  3-year' job .......I have tractor DM-686 sx also same spec rough rider ?

    Was it loaded with a excavator or end loader, big difference on box damage.    terry:MackLogo:  And also how well it was broken up before loading

  3. 10 hours ago, Joey Mack said:

    yes, pull the valve covers, certainly wouldnt hurt to drop the oil pan.  if you have lifter issues there will likely be bits in the pan.  you describe the sound as a clicking.  so it is not popping back into the intake or ''poof poof poof'' out the exhaust? is the oil level raising up, and /or is the oil diluted with fuel.  you can do a simple 'halo' test on a piece of cardboard to see if the oil is diluted. 

    Joey your comment on the poof poof out the exhaust, I once had a DM with a 237, when ever you backed off it or coasted down a hill it would do that, had a loose exhaust seat, ran a long time that way. When I eventually pulled the head you could see where it was moving up and down in the carbon buildup.  Terry:MackLogo:

    • Like 1
  4. 2 hours ago, D-Day said:

    There was a thread on here from a couple of years ago titled engine size in 65 Mack B53 and he posted some nice pictures proof that the tip turbine will fit under the hood, I do know the front crossmember/engine mount is different also another issue is if you have a single plate clutch with the short bell housing you would want to change to a two plate clutch with a little stronger transmission to handle the higher torque rating and you would have to redrill the rear mounts through the frame relocating them farther to the rear

    You also have to use a shorter nosed water pump, and shorter crank hub.    terry:MackLogo:

    • Like 2
  5. 13 hours ago, Keith S said:

    All the stud are 9/16-18 x 6.75". A few are little rust-pitted, and a few more show minor marks from using vise-grips.

    I was able to easily remove the nuts on all but one of the eight studs that unscrewed from the block. I'm confident the studs will torque up.

    Just be sure to run a die on each end of studs and run a bottom tap and blow out stud holes on block.   Terry:MackLogo:

    • Like 1
  6. 10 hours ago, Brian L Blaylock said:

    Hey everyone I need some help I have a ENDT-865 that will not start but will hit on ether I have not had time to check it out in detail I’m going to change the filters and check all of the lines other than that or a bad supply pump what else could be wrong thanks 

    Leak in return line will let it bleed off.  does that supply pump have the two little plastic check valves? if one is bad no pumping fuel.     terry:MackLogo:

  7. 7 hours ago, HarryS said:

    I found an old B Model operation manual for gas powered trucks. It calls for 10* BTC with 91 octane gas. That was when gas was gas with lead and without alcohol. The closest thing in today's gas would be non ethanol with the same octane rating if you can find it. Probably have to experiment from that point.

    Are you supposed to put harder valve seats in an older engine with the unleaded gas now?   Terry:MackLogo:

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