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1980 Peterbilt 359 Internation Transport

Posted By Wayne64SS 3 Years Ago
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aw12345
Posted 3 Years Ago
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Weep hole gives the coolant a path to escape when the waterpump seal goes bad. Om some diesel engines the waterpump can leak coolant into the oil pan.
Tony Bullard
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Wolfcreek_Steve (11/4/2017)
I'm not understanding the situation. What does a weephole have to do with coolant in the basement?

I'm with Steve on this one. The early pumps had no weep hole but still the only way out is through the bearing and out the shaft.

Unless it was a gear train drive pump that I'm not a where of.




Tony
Tony Bullard
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Oops! I was thinking of the 53 series. It may be like the gear drive 71 V series fresh water pump.
The inlines had something similar with a coupling drive to the gear train.



Tony
Wayne64SS
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Tony you're correct that first picture of a 53 series pump which are externally driven by a belt in which case they can only leak externally. The 71s and 92s are driven off the front cam via a gear that is bathed in crankcase oil. Early styles had no weep hole so when the internal seal goes bad it puts coolant in the basement. Newer updated designs have the weephole and it's a good size. Here are a few pictures for reference.

New style (the big square hole is weep hole)



Old style


As you can see without the weep hole the only place for the coolant to go is through the gear side to the oil.

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Buncha junk.
Junkmandan
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I'd find it hard to believe that an original OEM pump would have NO weep hole at all.   But could believe some reverse engineered product  might have taken that shortcut .   With the drilled hole at an angle compounded by the curvature of the fan blades that would plug the hole so you wouldn't know it was there.  But you could be lucky  yet.   Didn't know that was you posting in Spanish on that U-tube video .
Wayne64SS
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Finished up the stereo,cb, and speaker install on sunday. I can't wait to get this thing on the road.

Some fresh speakers behind the factory covers in the cab and in the sleeper



Sounds awesome and looks good in there.


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Buncha junk.
aw12345
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Looks good Wayne
Junkmandan
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You think you're gonna hear a radio with straight pipes ?
Wayne64SS
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it's a loud radio ;)

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Wayne64SS
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Did the water pump job Friday and got all the fluids back in on Saturday and got her running again. Easy job woulda been ALOT nicer inside in a heater bay instead of outside in 15degree weather. UGH I hate winter. Even still I had the pump off in under 40 minutes.



Confirmation:



Turns out the old pump does have a weep hole but it was very small and plugged. Also totally invisible to check in this application.



Had a bunch of minor leaks when finished which were all hose clamps not tight enough. Think I've got em all squared away and I moved the truck to it's winter location. I'll check again tonight.



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Buncha junk.


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