Can someone please confirm the fan clutch to water pump thread is right hand or left. I think it’s left but that’s why I’m asking just not sure before I began applying lots of torque on the nut to loosen it.
Much thanks!
Much thanks!
Water Pump Threads
- Thread starter Jkb242
- Start date
Thanks MRRSM! Super fast reply. My application is the 4.2 L not the V8. It appears the thread is indeed right hand form this video. The nut is super tight, I have performed this about 2 years ago just forgot the thread direction. I like the fan retention trick for sure and suppose it will work on the 4.2L. I use a special tool that allows a ratchet drive to hold the clutch while cranking on the large clutch nut. Possibly once the clutch nut is loose, I could remove the special holder from the clutch then replace with the (2) 30mm m8 bolts to hold the fan to clutch captive.
Thank again for the video and quick response.
Thank again for the video and quick response.
Your Vehicle Profile indicates that your Engine is the 5.3L V8... Nonetheless... You should visit this Link and view The BEST " How to R&R The GM 4.2l Water Pump" Procedures around that was generously penned by another Great GMTN Member... @Matt:
gmtnation.com
How to replace the water pump
Total time, about an hour. On the OS someone claimed to have done it in 30 minutes, but it took me about an hour from getting everything out to having everything packed away. Make sure the engine is COMPLETELY cool before doing this. Best bet is to do it first thing in the morning. Remove the...
gmtnation.com
Mooseman
Moderator
V8 and I6 use the same clutch. Both are normal right hand thread.
Thank to Matt for the really nice write up on the 4.2L water pump/fan clutch R&R. I had never seen this prior to your reply. Thanks again to MSRRM for the very helpful I extracted in applying my current repair of the 4.2L Envoy. My personal vehicle is the Denali with the 5.3L but my daughter’s ride is the 4.2L which has the issue.
On another note and in an effort to offer contribution, I discovered a simple tool made by an individual sold on EBay that also simplifies removal of the large to water pump pulley. Happy to post pictures and last know link to the inventors site. I paid around $13.00 as I remember.
Thanks also to Mooseman for answering my follow up question.
This is a terrific site and very happy to have discovered it. I hope to be a contributor in the future.
Thanks to all.
On another note and in an effort to offer contribution, I discovered a simple tool made by an individual sold on EBay that also simplifies removal of the large to water pump pulley. Happy to post pictures and last know link to the inventors site. I paid around $13.00 as I remember.
Thanks also to Mooseman for answering my follow up question.
This is a terrific site and very happy to have discovered it. I hope to be a contributor in the future.
Thanks to all.