volvo penta water pump

[michael stanley]

Hello i have a volvo penta water pump on my 21 ft colbalt AQ271 engine my marine repair guy replaced with a 1500 gmc truck water pump said it was the same pump but cheaper i said of course my auto mechanic i use says that they are different and he would not recommend it i had already changed out it seem to run fine there really that big a difference ? thanks you for your help

 

[kenny nunez]

Genuine marine circulating pumps have cast iron impellers and stainless steel backing plates some even have bronze impellers. Automotive style have stamped steel impellers with plain steel rear covers. If your engine is fresh water cooled with coolant then the automotive would hold up. If your engine is raw water cooled the automotive pump will not hold up and when the impeller rusts away you will start having heating problems.

 

[Scott Danforth]

like Kenny said, the marine water pump is designed for marine use. unless you rebuilt the motor and changed the AQ271 over to heat exchanged cooling, that pump will fail in a short bit of time.

 

[michael stanley]

Genuine marine circulating pumps have cast iron impellers and stainless steel backing plates some even have bronze impellers. Automotive style have stamped steel impellers with plain steel rear covers. If your engine is fresh water cooled with coolant then the automotive would hold up. If your engine is raw water cooled the automotive pump will not hold up and when the impeller rusts away you will start having heating problems.

thank you very much for your advice i will be changing out

 

[michael stanley]

like Kenny said, the marine water pump is designed for marine use. unless you rebuilt the motor and changed the AQ271 over to heat exchanged cooling, that pump will fail in a short bit of time.

thanks for replying