Hardin Marine Stainless water pump
06-23-2017, 03:27 PM
#31
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Location: Palm Coast, FL
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I want to ask Hardin about the Gen VII --- Impeller , oring and wear plate kit that CP / Harden sells --- the impeller in one kit ordered thru CP was not the OEM Merc impeller and the other kit was the OEM Bravo impeller. I saved the impeller from the kit that was not the OEM. When I run into you guys in person I would like to show you. No big deal on my part but Can you comment on this ? Thank you. I promise I know what I am doing and deal with many impellers daily from OEM Merc to Johnson brands / for Volvo, indmar and also deal with Jabsco to Sherwood brands as well.
To further add, I carry 25 of both style bravo impellers all the time - OEM ordered from Merc on my part. And YES I know your GEN VII pump / kit uses the older style Bravo Impeller and YES I know the reasons WHY as well you made it that way. One is easier to find and buy, and 2 it offers a better supported hub area.
Thanks for any replies about this, John.
To further add, I carry 25 of both style bravo impellers all the time - OEM ordered from Merc on my part. And YES I know your GEN VII pump / kit uses the older style Bravo Impeller and YES I know the reasons WHY as well you made it that way. One is easier to find and buy, and 2 it offers a better supported hub area.
Thanks for any replies about this, John.
I know of numerous people that sell a kit with Impeller, Wear Plate, O-rings but I can confidently tell you our GEN 7 pumps ALL have Merc Impellers. if you order 100 kits from us today randomly everyone will come with a Merc impeller I GUARANTEE IT!!
We do offer the cheap import rebuild kits from Sierra that are sold separately for other stand alone applications as those products aren't sold as ours.
06-23-2017, 08:37 PM
#32
Banned
Have your kit in the house and will bring it to IBEX - I was going to ask Rick (CP) about it but really not worried currently. Crazy busy.
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Is this Scott or ? - if you like you can PM or however if need to be. I m sure you know me already. Just saying. Thanks John
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Is this Scott or ? - if you like you can PM or however if need to be. I m sure you know me already. Just saying. Thanks John
Last edited by BUP; 06-23-2017 at 08:40 PM.
06-24-2017, 09:03 AM
#33
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What brand of bearings are used with the Hardin Pump? What type of grease used? I've been leaning towards these lately.
06-08-2019, 11:59 AM
#34
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I have also change impellerhousing on my 600SCi to the new gen 5 Hardin stainless one! Pressure will not go over 18 PSI and so comes the guardian from the engine when turn over 4600 Rpm!
Have change 2 times against plastic impeller housing and pressure two times come back!
I found nothing wrong with the stainless hardin housing,but it produce not enough pressure! My engine needs minimum from 30 PSI to run 5200 and with 18 i have no chance.
Anyone have found out why the housings sometimes not work?
Bad building from some??
Michael
Have change 2 times against plastic impeller housing and pressure two times come back!
I found nothing wrong with the stainless hardin housing,but it produce not enough pressure! My engine needs minimum from 30 PSI to run 5200 and with 18 i have no chance.
Anyone have found out why the housings sometimes not work?
Bad building from some??
Michael
06-08-2019, 06:05 PM
#35
Registered
My Gen5/6 Hardin pump has some kind of hump in the casting which the composite does not. Installed the composite back this year and going to get some readings.
Raw water Pump
Raw water Pump
06-09-2019, 02:12 AM
#36
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Thanks for info.I have the luck to get the pump fast out of the engine.So changed 2 times after check if all is good mounted.
I get with comoposite housing allways my pressure and so more waterflow back.I have no chance to use this Hardin housing i get as my engine go in the Guardian mode and reduce the power.Only 18 Psi from the hardin pump is not soooo bad but for smartcraft guardian to low.
By the way i make one test drive with blocked pressuresender that alltime show full psi.Engine run with this fine an get not hot.But water here very cold.Only 50 degree!
I think guys without pressure gauge dont notice direct the lower water flow.
Michael
I get with comoposite housing allways my pressure and so more waterflow back.I have no chance to use this Hardin housing i get as my engine go in the Guardian mode and reduce the power.Only 18 Psi from the hardin pump is not soooo bad but for smartcraft guardian to low.
By the way i make one test drive with blocked pressuresender that alltime show full psi.Engine run with this fine an get not hot.But water here very cold.Only 50 degree!
I think guys without pressure gauge dont notice direct the lower water flow.
Michael
Last edited by Brembofreak; 06-09-2019 at 02:29 AM.
06-09-2019, 09:07 AM
#37
Registered
dont have any answers for this issue but i have the hardin gen 4 pumps mounted on teague brackets. i run over 30 psi at 5400 rpms. i run a thermostat. maybe the lack of a thermostat allows too much flow?
06-09-2019, 09:29 AM
#38
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No answers either but I have the Hardin gen 7 pump and also get 30+psi.
Has anyone called Hardin about this? They were always helpful the few times I called.
Has anyone called Hardin about this? They were always helpful the few times I called.
06-10-2019, 04:26 PM
#39
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Join Date: Mar 2012
Location: Middleton, WI
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I have also change impellerhousing on my 600SCi to the new gen 5 Hardin stainless one! Pressure will not go over 18 PSI and so comes the guardian from the engine when turn over 4600 Rpm!
Have change 2 times against plastic impeller housing and pressure two times come back!
I found nothing wrong with the stainless hardin housing,but it produce not enough pressure! My engine needs minimum from 30 PSI to run 5200 and with 18 i have no chance.
Anyone have found out why the housings sometimes not work?
Bad building from some??
Michael
Have change 2 times against plastic impeller housing and pressure two times come back!
I found nothing wrong with the stainless hardin housing,but it produce not enough pressure! My engine needs minimum from 30 PSI to run 5200 and with 18 i have no chance.
Anyone have found out why the housings sometimes not work?
Bad building from some??
Michael
06-12-2019, 01:19 PM
#40
Registered
I switched from the plastic to the stainless a couple of years ago and I haven't noticed any difference in water or oil temp. But I made other modifications to my headers to allow them to flow more water. At idle I flow a ton of water out of my tips, more than I see out of other boats. I can't fit another gauge on my dash, I'll have to wire a toggle to my fuel pressure gauge and add a pressure sensor. Where should I install a transducer to get the best readings?
