Forum Index
Jeep Horizons HomeLinksJeep Horizons Tech Write-upsJeep newsLand useContact

 Watched TopicsWatched Topics   FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Electric / Secondary Water Pumps?


 
Post new topic   Reply to topic     Forum Index -> Drivetrain
View previous topic :: View next topic  
Author Message
Swiftek
Member


Joined: 10 May 2008
Location: Tampa Bay

PostPosted: Thu May 22, 2008 7:49 am    Post subject: Electric / Secondary Water Pumps? Reply with quote

Anybody know of good electric and/or secondary water pumps for the 4.0 liter inline 6 cylinder engine?
_________________
Swiftek
www.PinellasPC.com

'89 Cherokee Pioneer "4x4x4"
(4WD, 4Liter, 4Door)
Back to top
View user's profile Send private message Visit poster's website
Brad The Best
Member


Joined: 14 Jan 2007
Location: Kamloops B.C Canada

PostPosted: Sun Jun 08, 2008 11:40 pm    Post subject: Reply with quote

no they don't need them .
Back to top
View user's profile Send private message Send e-mail MSN Messenger
Swiftek
Member


Joined: 10 May 2008
Location: Tampa Bay

PostPosted: Thu Jun 12, 2008 8:42 am    Post subject: Reply with quote

Shocked
Well, now I'd say that is a matter of opinion.

In my area, the ability to sit in heavy traffic at ambient air temps over 110 F is very important. An electric or secondary pump would overcome the problem of low coolant flow at idle.
_________________
Swiftek
www.PinellasPC.com

'89 Cherokee Pioneer "4x4x4"
(4WD, 4Liter, 4Door)
Back to top
View user's profile Send private message Visit poster's website
Code3TJ
Hacker
Hacker


Joined: 01 Jan 2004
Location: Uzbekistan

PostPosted: Thu Jun 12, 2008 1:44 pm    Post subject: Reply with quote

Instead of reinventing the wheel, have you looked at a high flow thermostat housing and something like a flowkooler waterpump? It's worked for me at low speeds in the desert. You can also look at something like this.
_________________
Nothing to see here.
Back to top
View user's profile Send private message
Swiftek
Member


Joined: 10 May 2008
Location: Tampa Bay

PostPosted: Thu Jun 12, 2008 2:04 pm    Post subject: Reply with quote

Thanks for the suggestions.

I'm not reinventing anything. Electric primary and secondary pumps are becoming more popular and don't require any new engineering.

The flowkooler is an option that I've considered along with some other high-performance replacement pumps.

The probs I'm referring to are not at "slow speeds", but only at dead idle. There are no restrictions in the OEM thermostat housings or any other water channels. The only problem at idle is the lack of pressure due to the clearances on the OEM pump. Even a few revs above idle are enough to move coolant and keep it cool.

I'm just looking for something I can add or replace that will be more than what is needed by a factor of 2 or 3. A secondary electric inline pump seems to be what I'm looking for, but my mind is still open.

Again, thanks for the tips. I'll read thru it.
_________________
Swiftek
www.PinellasPC.com

'89 Cherokee Pioneer "4x4x4"
(4WD, 4Liter, 4Door)
Back to top
View user's profile Send private message Visit poster's website
ehirner
Moderator
Moderator


Joined: 01 Jan 2004
Location: Eastern PA

PostPosted: Sat Jun 14, 2008 11:30 am    Post subject: Reply with quote

I honestly can not see why this is needed. There are a lot of Jeepers across this country and many in extremely hot places like the Southwest US that are hotter than Tampa. Never have any of them spoke about needing a secondary water pump or an electric primary pump so engine RPM doesn't effect the flow rate. Many of these guys run AC while offroad and baking in the desert sun.

Good luck in your search.
_________________
04 Unlimited
Back to top
View user's profile Send private message AIM Address
Swiftek
Member


Joined: 10 May 2008
Location: Tampa Bay

PostPosted: Sat Jun 14, 2008 12:55 pm    Post subject: Reply with quote

I tend to agree with that.

Perhaps I am missing something that is causing my issue. I'm certainly open to the possibility. I have done a test that shows very little flow and almost no pressure at idle RPM. If I put my hand over the end of the top radiator hose at idle, the coolant flow simply stops. Even the slightest rev will force water past my hand.

I think I have verified everything... I have a new radiator, oem pump, thermostat and hoses. I have verified no blockages in the water jackets, and there is good flow thru the entire system.

I guess I should do a compression test to check for a blown head gasket, but I have no other symptoms that would suggest that. The oil looks good and gets changed properly.

Could a bad auto-transmission be dumping too much heat into the radiator? I guess now is the time to add that separate trans cooler, eh?

That's why I'm here... looking for ideas. Thanks for reading.
_________________
Swiftek
www.PinellasPC.com

'89 Cherokee Pioneer "4x4x4"
(4WD, 4Liter, 4Door)
Back to top
View user's profile Send private message Visit poster's website
Brad The Best
Member


Joined: 14 Jan 2007
Location: Kamloops B.C Canada

PostPosted: Fri Jul 18, 2008 10:30 pm    Post subject: Reply with quote

you dont by any chance still have the closed cooling system found in a 89 Cherokee .

no rad cap , pressure bottle .

works in some vehicles , but not a cherokee very well .
Back to top
View user's profile Send private message Send e-mail MSN Messenger
Swiftek
Member


Joined: 10 May 2008
Location: Tampa Bay

PostPosted: Sat Jul 19, 2008 8:37 am    Post subject: Reply with quote

Yes, it is the closed system, but I can't see how that could be the problem honestly.
_________________
Swiftek
www.PinellasPC.com

'89 Cherokee Pioneer "4x4x4"
(4WD, 4Liter, 4Door)
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic     Forum Index -> Drivetrain All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Visit links4jeeps.com for write-ups, forums and clubs




Jeep®, Wrangler, Cherokee, Liberty and Grand Cherokee are copyrighted and trademarked to Chrysler LLC.
jeephorizons.com is not in any way associated with or endorsed by the Chrysler LLC.
All other content is copyright Jeep Horizons 2004-2008.
Tech write-ups Links Discussion board Land use News Site Map Terms of Use

Powered by phpBB © 2001, 2005 phpBB Group