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-   4.0L OHV & SOHC V6 Tech (https://www.ranger-forums.com/4-0l-ohv-sohc-v6-tech-33/)
-   -   Water Pump replacement (https://www.ranger-forums.com/4-0l-ohv-sohc-v6-tech-33/water-pump-replacement-169504/)

wmyhal Jul 9, 2022 11:35 AM

Water Pump replacement
 
Hi All

2010 ford Ranger 4.0 L
Question: Is that 36mm nut on the fan clutch right hand or left hand thread?
Some Youtube videos say right hand and one I watched was left hand (normal threads)

Thanks


RonD Jul 9, 2022 09:46 PM

Its standard thread, lefty loosy/righty tighty

Easy way to tell on most engines is to look at the water pump pulley, if pulley has ribs(like crank pulley) then its Reverse threads, if pulley is smooth(no ribs) then its regular threads

Assuming serpentine belt of course :)

Most engine crank shafts spin counter clockwise, so any pulley with ribs will also be spinning counter clockwise, so regular threads could loosen up
Smooth pulley means it spins clockwise(smooth part of belt), so regular thread would remain tight or tighten up more, lol

The 3.0l Ranger engine used reverse thread on fan clutch, and has a ribbed water pump pulley, lol

DILLARD000 Jul 10, 2022 07:24 AM

A couple of ways to break loose the Pump~FanClutch Nut on the V6~4.0L~SOHC:
~ "By The Book" using a SinglePurposeWrench
~ "By The Hook" per Vid below; I'd first try breaking it loose with SerpBelt still on.

wmyhal Jul 10, 2022 08:16 AM

Thanks Guys


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