The Ford Barn

Pete / MA · 08-06-2012, 02:53 PM

I am rebuilding a water pump and when I was cleaning the housing I noticed a small hairline crack in the casting where the impeller bushing fits. It's about 1/2 inch long and seems to fade out to nothing. The 4-bolt mount, yoke and front bearing housing appear to be fine. My question, is this a lethal crack? What would cause something like this?
Thanks...................Pete

Jack '29 Sport Coupe · 08-06-2012, 03:27 PM

Heat? Vibration?

Jack

glenn in camino · 08-06-2012, 07:35 PM

It was probably caused by someone removing or installing the rear bushing. Get another housing and clean it really good before installing a new rear bushing. I like the rear bushings with an O ring seal.

mass A man · 08-07-2012, 01:46 AM

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Pete, any crack in the Ford A pump casting is junk in my mind. Years ago people would braze the cracks, but with some good repro and original housings out here, it's not worth fixing them. I still have one here to remind me of that. It was a braze job, looked OK, but one day after just starting the ford up, I got out and luckily the right side hood was open for me to see the water pump was at a 20 degree angle, still trying to do it's thing. I stopped the engine probably seconds before the whole thing gave up the ghost and ate my radiator. Best regards, Pete K.

08-06-2012, 02:53 PM	#1
Pete / MA Senior Member Join Date: May 2010 Location: Brookfield, NH Posts: 102	Water Pump Question Question I am rebuilding a water pump and when I was cleaning the housing I noticed a small hairline crack in the casting where the impeller bushing fits. It's about 1/2 inch long and seems to fade out to nothing. The 4-bolt mount, yoke and front bearing housing appear to be fine. My question, is this a lethal crack? What would cause something like this? Thanks...................Pete

08-06-2012, 03:27 PM	#2
Jack '29 Sport Coupe Senior Member Join Date: May 2010 Location: Cincinnati, Ohio Posts: 798	Re: Water Pump Question Question Heat? Vibration? Jack __________________ Cincinnati, Ohio

08-06-2012, 07:35 PM	#3
glenn in camino Senior Member Join Date: May 2010 Location: Camino, CA. Posts: 3,086	Re: Water Pump Question Question It was probably caused by someone removing or installing the rear bushing. Get another housing and clean it really good before installing a new rear bushing. I like the rear bushings with an O ring seal.

08-07-2012, 01:46 AM	#4
mass A man Senior Member Join Date: Jun 2010 Location: Danvers, Ma. Posts: 713	Re: Water Pump Question Question Sponsored Links (Register now to hide all advertisements) Pete, any crack in the Ford A pump casting is junk in my mind. Years ago people would braze the cracks, but with some good repro and original housings out here, it's not worth fixing them. I still have one here to remind me of that. It was a braze job, looked OK, but one day after just starting the ford up, I got out and luckily the right side hood was open for me to see the water pump was at a 20 degree angle, still trying to do it's thing. I stopped the engine probably seconds before the whole thing gave up the ghost and ate my radiator. Best regards, Pete K.