<html><head></head><body><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div><div>If you run it, do you get bubbles in the radiator? Weep holes should be pretty prominent in the block at the base of the sleeve an inch or so above the bottom of it centered on the sleeve. I'd check everything out before tearing into it- I saw a so called Mechanic take a head off a 4520 because of the same thing and the problem was the oil cooler. I remember the weep holes more on 4010's at 79-80 they may have quit putting them in- Get a leak detector, pre-lubracator and pressurize the oil system and see what happens. </div><div><br></div><div class="ydp317e4a1fsignature"><div>Barney Van De Weert<var id="ydp317e4a1fyui-ie-cursor"></var></div></div></div>
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On Monday, March 12, 2018, 6:31:58 PM CDT, John Hall <jtchall@nc.rr.com> wrote:
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<div><div dir="ltr">Haven't seen anything from ATIS in days. So here is a little something <br></div><div dir="ltr">for you guys to ponder. Spring is upon us and needed to get the 4020 <br></div><div dir="ltr">Deere diesel serviced. I pulled the drain plug slowly and noticed <br></div><div dir="ltr">antifreeze coming out instead of oil. I caught about 4-6 oz of <br></div><div dir="ltr">antifreeze before it switched over to all oil. Pulled the pan and <br></div><div dir="ltr">pressurized the coolant system. Number 6 has oil coming between the <br></div><div dir="ltr">piston and sleeve--out side of sleeve looks dry (makes me think the <br></div><div dir="ltr">orings on sleeves are OK). I have not had the engine hot and antifreeze <br></div><div dir="ltr">is adequate, so I have no reason to suspect a crack. I really don't have <br></div><div dir="ltr">time to do an in frame rebuild right now, just considering a head gasket <br></div><div dir="ltr">replacement--should face head as soon as I can find someone who can. <br></div><div dir="ltr">Supposedly this engine has weep holes in the side of the block, but I <br></div><div dir="ltr">haven't found them. the block is a replacement from 79 or the very <br></div><div dir="ltr">early 80's. I am not ruling out a in-fram rebuild, would just like to <br></div><div dir="ltr">wait until next winter if I can.<br></div><div dir="ltr"><br></div><div dir="ltr">Your thoughts?<br></div><div dir="ltr"><br></div><div dir="ltr">John Hall<br></div><div dir="ltr"><br></div><div dir="ltr">_______________________________________________<br></div><div dir="ltr">AT mailing list<br></div><div dir="ltr"><a href="mailto:AT@lists.antique-tractor.com" rel="nofollow" target="_blank">AT@lists.antique-tractor.com</a><br></div><div dir="ltr"><a href="http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com" rel="nofollow" target="_blank">http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com</a><br></div></div>
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