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  1. W

    Proper (easiest) way to replace fan belt on case 450b crawler

    It actually has a segmented belt on it now..I cant get the hyd. pump to move......so it may stay that way....was just wanting to change it while I had it down.
  2. W

    GREAT, LIMITED, SUPER CHEAP source for Case 207D piston sleeve kits on Ebay

    Click here to see Case 207D sleeve kits they are Clevite Kits and the Clevite Part# is 226-1656 / G-762 I got a whole set of (4) for $167.96, ($41.99 each) with FREE! Fedex shipping.... already got them installed, it is old government stock...the guy has like 12-15 left. He has marked...
  3. W

    Do we have any A/C experts here?

    very well explained :thumbsup
  4. W

    Need help with diagnosis on Case 450B

    yes it is naturally aspirated...I think part of the problem was just simply engine wear (for the blow by issue anyhow)....the cylinder walls looked like polished silver, lol....you could see yourself in them....pretty good ridge at the top of #1 and #2 cylinder, and you could plainly see where...
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    Do we have any A/C experts here?

    Another thing about 134A is that the oil used in automotive 134A is polyalkylene glycol (PAG)...The oil used in Commercial 134A is Polyol ester oil, (commonly called POE)....Both of these attract moisture like a prostitute attracts politicians....and hold it a LOT longer.....it is not like the...
  6. W

    Do we have any A/C experts here?

    That would be a liquid charge....but liquid charging is only supposed to be done from the high side access port....you should never charge an AC system with pure liquid refrigerant. The compressors job is to "compress" refrigerant vapor coming from the Low side. The compressor is not designed to...
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    Do we have any A/C experts here?

    I disagree....R-134A is one of the few "pure fluid" refrigerants left on the market...like R-12, R-22, R-502 (not blended like most CFC replacement refrigerants are today) so it will not "separate and flash" the sight glass like blended refrigerants are rumored to do, and being its a pure fluid...
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    D5k air conditioner question

    You need to change your liquid line drier....with the pressures you mention, you have a restriction on the high side at your metering device...(orifice, cap. tube, or expansion valve, whichever you have)... Rule of thumb is you should be running anywhere from 30-35 lbs on the suction line...
  9. W

    Proper (easiest) way to replace fan belt on case 450b crawler

    I am dreading this belt change....did one similar about a month ago on a 555 ford backhoe by removing the hyd. pump, had some room to play on the hoses so I could slide the pump back far enough to get the belt thru....but... I do not see the same option on the Case...not to mention the pump...
  10. W

    DAB rod bearings question for a Case 450B Crawler

    Never mind....after finding out what the rod journal size was and precise measurement of my crank (with a mic)...the A-50973 bearings are .020 oversized and the A-50974 bearing is .030...... The rod journals on a 207D are 2.2480-2.2490 The Main Journals are 2.8730-2.8740
  11. W

    DAB rod bearings question for a Case 450B Crawler

    I have a 1978-79?? 450b Case dozer....doing an in frame but can find reference to the DAB rod bearings....the part # is like a case # but the current part numbers don't start till A-50975....I need some help here.... The number one rod is dated 11-78.....two and three are dated 5-80....and...
  12. W

    Need help with diagnosis on Case 450B

    here is the next hurdle...I went ahead and pulled the engine down for a "in frame" (207D) because I found complete Clevite sleeve/piston assemblies on ebay for $42 each with free shipping....170 bucks for all four cylinders....WOW! , and thought I had my rod bearing bought...UNTIL.....after...
  13. W

    Need help with diagnosis on Case 450B

    First off...HELLO!....this is my first actual post here but have read and used the wealth of info here for a while. Now....for the whole story.... I just bought a Case 450B dozer that had been sitting for about a year, decent shape with a 90% U/C (this is my 2nd 450b, first one was a...
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    First Post Test

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    Test 1

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