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john charlton · 08-16-2022, 06:48 AM

Do not worry about the collar wearing into the pack nut, the fan pulls ahead when the engine is running . I had a lot of end play on my 31 CCPU I could have cured it by removing the pump and fitting a stainless washer on the impellor end . A pain in the butt as you do several this several times to get the right thickness washer . I did it the easy way and fitted a small suitable stainless hose clip which has been on the shaft for years and no pack nut wear has occured when I grease the pump it does get a bit of lube .

John in sunny Suffolk County England

Many years ago I worked in Fukuoka (Hakata) Kyushu loved it there and RHD country !!!

08-16-2022, 06:48 AM	#14
john charlton Senior Member Join Date: May 2010 Posts: 1,304	Re: Water Pump shaft end play Do not worry about the collar wearing into the pack nut, the fan pulls ahead when the engine is running . I had a lot of end play on my 31 CCPU I could have cured it by removing the pump and fitting a stainless washer on the impellor end . A pain in the butt as you do several this several times to get the right thickness washer . I did it the easy way and fitted a small suitable stainless hose clip which has been on the shaft for years and no pack nut wear has occured when I grease the pump it does get a bit of lube . John in sunny Suffolk County England Many years ago I worked in Fukuoka (Hakata) Kyushu loved it there and RHD country !!!