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Mercruiser 496 HO Low pressure, high temperature problems

Mercruiser 496 HO Low pressure, high temperature problems

Old 06-04-2019, 10:02 AM
  #11  
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its a OEM impeller but sized for the SS drop in plate that is mated for a kit. Its all about proper tolerances for impellers to pump / flow correctly as well
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Old 06-04-2019, 11:33 AM
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Originally Posted by BUP View Post
its a OEM impeller but sized for the SS drop in plate that is mated for a kit. Its all about proper tolerances for impellers to pump / flow correctly as well
Do you have the kit #. Can I just buy the right impeller or is it not sold separately?
Do you sell this item. Give me a phone #.
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Old 06-04-2019, 06:06 PM
  #13  
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the info why some of these drop in kits do not work correctly. I have posted this info years ago up here

For one you have a stock sized housing and matched stock sized OEM impeller

then one drops in a SS plate into the housing taking up space

then one drops in a stock sized OEM impeller

This is Not going to work correctly as the SS plate has taken up space within the impeller housing so the IMPELLER is too tall and its jammed and crammed too much in the housing.

Like I said tolerances are the upmost important for flow and volumes. when it comes to impellers and the housing they sit / spin in

Again a stock sized OEM impeller does not work correctly when one drops in a SS plate in the stock sized housing.

Last edited by BUP; 06-04-2019 at 06:09 PM.
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Old 06-04-2019, 06:48 PM
  #14  
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Originally Posted by BUP View Post
the info why some of these drop in kits do not work correctly. I have posted this info years ago up here

For one you have a stock sized housing and matched stock sized OEM impeller

then one drops in a SS plate into the housing taking up space

then one drops in a stock sized OEM impeller

This is Not going to work correctly as the SS plate has taken up space within the impeller housing so the IMPELLER is too tall and its jammed and crammed too much in the housing.

Like I said tolerances are the upmost important for flow and volumes. when it comes to impellers and the housing they sit / spin in

Again a stock sized OEM impeller does not work correctly when one drops in a SS plate in the stock sized housing.
Thank thank you for the clarification it is appreciated 🙃
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