Previous Thread
Next Thread
Print Thread
Page 4 of 9 1 2 3 4 5 6 7 8 9
Re: new distributor [Re: 8urvette] #2763587
04/13/20 06:56 PM
04/13/20 06:56 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Originally Posted by 8urvette
no change.
I swapped out the water pump pulley that is 1.25" smaller diameter. i think it is something like a 24% change in water pump rpms.

NO FRIGGIN CHANGE.

Timing is at 15 BTDC, its a 180* thermostat. Should I go to a 160*? would it help? could it help?


HELP

help


IF your moving enough water it should help.. how does it start now.. I am wondering if you have
blockage in the block or radiator.. for now pull the stat right out and see what it does.. you could
have a blockage in the block or radiator
wave

Re: new distributor [Re: MR_P_BODY] #2763591
04/13/20 07:03 PM
04/13/20 07:03 PM
Joined: Jul 2011
Posts: 781
wine country
8
8urvette Offline OP
super stock
8urvette  Offline OP
super stock
8

Joined: Jul 2011
Posts: 781
wine country
I did a hose test on both.

Garden hose full on - is not restricted in either the block or radiator.

And this is the 3rd radiator in the car with the same thing.

Any idea what a clutch fan moves for CFM? or a flex fan?

Re: new distributor [Re: 8urvette] #2763610
04/13/20 07:23 PM
04/13/20 07:23 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
I just use a HHR(chevy) fan and shroud and dont have any problems on my SB street rod...
take your stat out and try it
wave

Last edited by MR_P_BODY; 04/13/20 07:26 PM.
Re: new distributor [Re: MR_P_BODY] #2763634
04/13/20 08:20 PM
04/13/20 08:20 PM
Joined: Jan 2004
Posts: 666
IL
D
Dart451 Online content
mopar
Dart451  Online Content
mopar
D

Joined: Jan 2004
Posts: 666
IL
What water pump your running?
I had bad luck with a 440 source high volume one.

Last edited by Dart451; 04/13/20 08:25 PM.
Re: new distributor [Re: Dart451] #2763660
04/13/20 09:39 PM
04/13/20 09:39 PM
Joined: Dec 2012
Posts: 257
Alberta
4
440_Offroader Offline
enthusiast
440_Offroader  Offline
enthusiast
4

Joined: Dec 2012
Posts: 257
Alberta
On that note, does it have a 440 source water pump housing? Didn't they have a flow problem years ago with one of the passages?

Re: new distributor [Re: 8urvette] #2763673
04/13/20 10:21 PM
04/13/20 10:21 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,007
Bend,OR USA
Have you verified your actual water temps compared to what YOUR gauge is saying?
I had one the high dollar Auto Meter mechanical water temp gauges read 40 F higher than the actual water temps where in the car, I found that out at the races when I stuck my hand on the radiator top when the Auto Meter gauge in the car was reading 140 F when the radiator was cool, not hot. I stuck my finger into the coolant circulating from the radiator cap opening and it was not hot, barely body temps shock Murphy hates us hot rodders and racers whiney
AKA, when it doesn't make since there is usually a reason for that work scope twocents


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: new distributor [Re: Cab_Burge] #2763677
04/13/20 10:49 PM
04/13/20 10:49 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
I agree with Cab... its time to start testing.. if this pump or the housing has a flaw you need
to find it.. we know based on what you said before.. the engine has had 2 pumps on it and
that didnt correct the issue... you tried changing the timing around and that didnt correct it..
its had a few radiators...if 440 had a pump or housing issue(I dont know sense I dont do
much on 440s) then maybe you need to check it.. as a check and your gauge accuracy with
thermocouples or another test item... this should be a start... and ask question before
you jump
wave

Re: new distributor [Re: MR_P_BODY] #2763767
04/14/20 10:28 AM
04/14/20 10:28 AM
Joined: Jul 2011
Posts: 781
wine country
8
8urvette Offline OP
super stock
8urvette  Offline OP
super stock
8

Joined: Jul 2011
Posts: 781
wine country
The original housing and pump are both 440 source- and they are from around 2007-2009 which according to the new research i have done, is the time they had bad flowing units out there. The pump I swapped in was an earlier unit from maybe 06' which cooled a 540 fine.

I have the housing on my race motor that I will pull off and check out, and i will pull the 440 source unit off the 383 and inspect and replace since I have another unit that did cool a BBM.

as far as verifying the temps, There have been numerous gauges from cheap temp mechanical units to what i have in now, all have had different senders.
I can feel the heat coming from it, it is HOT!!!!

The housing is one thing I have not changed yet.

The 383 was originally my motor in my barracuda. It worked in my. I pulled a bunch of stuff off it when I went to a 540, including the water pump and housing. They got transferred to the 540. I gave my dad the 383 years later when he bought this coronet. He bought some parts for it to complete it...

Man.... I hope this is it.

Re: new distributor [Re: 8urvette] #2763778
04/14/20 10:54 AM
04/14/20 10:54 AM
Joined: Jan 2007
Posts: 8,027
Mt Morris Michigan
mopar dave Offline
master
mopar dave  Offline
master

Joined: Jan 2007
Posts: 8,027
Mt Morris Michigan
I have a cooling issue as well on my 511 with filled block. If I use a flex fan and shroud, it cools fine in the driveway and driving down the road. When I installed the twin spal 12" fans(1100cfm/ea) with an aluminum enclosed shroud, it would cool in the driveway fine, but out on the road would run 218* in the heat. I have since installed 12" spal paddle fans(1600cfm/ea) hoping to pull more air thru the radiator. I think these enclosed aluminum shrouds like yours and mine don't allow enough air flow. My shroud has free flow holes in it as well. Waiting for the summer heat to see how it does. Again, when I reinstall the flex fan and shroud it over cools, so there is an issue with that enclosed shroud or maybe you need a bigger better fan. Look at A1 Electric, they have a nice spec chart of all the spal fans they sell. Hope this helps.

Re: new distributor [Re: mopar dave] #2763800
04/14/20 11:28 AM
04/14/20 11:28 AM
Joined: Jul 2011
Posts: 781
wine country
8
8urvette Offline OP
super stock
8urvette  Offline OP
super stock
8

Joined: Jul 2011
Posts: 781
wine country
Here are the 2 water pump housings...


The one with the small amount of orange in the pic is off the 383. it appears to actually be a mopar part... HMMM...

I ran a straight edge across the face of both pump housings and dropped a caliper down to measure where it touches the angled part for the impeller to sit. The rusty one has a closer tolerance by about 8 thousandths... it also has smaller coolant passages.

Do i just replace everything??????

20200414_081201.jpg20200414_081156.jpg
Last edited by 8urvette; 04/14/20 11:29 AM.
Re: new distributor [Re: 8urvette] #2763819
04/14/20 11:56 AM
04/14/20 11:56 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
It might be a smart move to replace it all.. just a guess here.. I sure would like to
see one of the housing that had the known issue.. on my SB stuff I run a motor plate
and have the pump on top of the plate so there is a pretty good space where the pump
mounts
EDIT
You also need to get ALL of the air out of the system... I put a bleed on mine
wave

Last edited by MR_P_BODY; 04/14/20 12:04 PM.
Re: new distributor [Re: MR_P_BODY] #2763848
04/14/20 01:00 PM
04/14/20 01:00 PM
Joined: Jan 2004
Posts: 666
IL
D
Dart451 Online content
mopar
Dart451  Online Content
mopar
D

Joined: Jan 2004
Posts: 666
IL
lets see pics of the pump

Re: new distributor [Re: 8urvette] #2763852
04/14/20 01:12 PM
04/14/20 01:12 PM
Joined: May 2008
Posts: 1,131
Thigh-Gap Junction
@
@#$%&*! Offline
New user name, Same old jerk!
@#$%&*!  Offline
New user name, Same old jerk!
@

Joined: May 2008
Posts: 1,131
Thigh-Gap Junction
It sure would suck to find out the problem is just a lean carburetor.
twocents

Originally Posted by 8urvette

Do i just replace everything??????

Re: new distributor [Re: @#$%&*!] #2763920
04/14/20 04:21 PM
04/14/20 04:21 PM
Joined: Jul 2011
Posts: 781
wine country
8
8urvette Offline OP
super stock
8urvette  Offline OP
super stock
8

Joined: Jul 2011
Posts: 781
wine country
Originally Posted by @#$%&*!
It sure would suck to find out the problem is just a lean carburetor.
twocents

Originally Posted by 8urvette

Do i just replace everything??????



Funny side note... already been there and done that.


OK, 440source housing and pump from my 540.

Takes a lot longer to get to temp, then hits 220, comes down to 180 and fan shuts off. Heats back up and hit 220 fan is on and brings it down to 205* just sitting idling in my carport. Stays at 205 for a long while. And its 15* warmer today than yesterday.

Conclusion at this point is the smaller port 440source housing has tighter tolerance to the pump veins, thus moving more coolant.

Re: new distributor [Re: 8urvette] #2764037
04/14/20 11:22 PM
04/14/20 11:22 PM
Joined: Jul 2011
Posts: 781
wine country
8
8urvette Offline OP
super stock
8urvette  Offline OP
super stock
8

Joined: Jul 2011
Posts: 781
wine country
this is the style of pump I put in. Should i replace it with a Blade style pump????

Seems all the big brands are not using this style... maybe just swap it out to see if it helps?

pump.jpg
Re: new distributor [Re: 8urvette] #2764043
04/14/20 11:45 PM
04/14/20 11:45 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Myself I like the blade ones better.. I would look for a 8 blade.. thats the pump for AC
wave

Re: new distributor [Re: 8urvette] #2764131
04/15/20 09:11 AM
04/15/20 09:11 AM
Joined: Jul 2007
Posts: 198
TN Hoosier
J
jb500 Offline
member
jb500  Offline
member
J

Joined: Jul 2007
Posts: 198
TN Hoosier
What type of T-Stat do you have in this? Not temp, but type.

Try a high flow Robert Shaw design (Milodon, Flowkooler, Chrysler OEM) and see if it drops the temps.

This one part change made all the difference in my cooling woes I was chasing for quite some time.

Re: new distributor [Re: jb500] #2764141
04/15/20 09:27 AM
04/15/20 09:27 AM
Joined: Jan 2004
Posts: 666
IL
D
Dart451 Online content
mopar
Dart451  Online Content
mopar
D

Joined: Jan 2004
Posts: 666
IL
That's the same style pump I had and fought similar problems switch to the Milodon 16260 high volume and my problems went away.

Re: new distributor [Re: Dart451] #2764575
04/16/20 11:45 AM
04/16/20 11:45 AM
Joined: Jul 2011
Posts: 781
wine country
8
8urvette Offline OP
super stock
8urvette  Offline OP
super stock
8

Joined: Jul 2011
Posts: 781
wine country
Okay, milodon water pump ordered and new high flow t stat. Should be here tomorrow. Will install and road test again.

Re: new distributor [Re: 8urvette] #2764614
04/16/20 01:14 PM
04/16/20 01:14 PM
Joined: Jan 2004
Posts: 666
IL
D
Dart451 Online content
mopar
Dart451  Online Content
mopar
D

Joined: Jan 2004
Posts: 666
IL

Looking forward to the results

Page 4 of 9 1 2 3 4 5 6 7 8 9






Powered by UBB.threads™ PHP Forum Software 7.7.1