opinion on water pump
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opinion on water pump
Posted: April 23 2008 09:54 PM
 
Wayne Maur (aka cruizznn) [ View ] [ kmaur@roadrunner.com ] [ Car Ads ] [ Blogs ]
Medina, Ohio
(330) 239-2706
 
I can find nothing about this anywhere on the net..even called weiand and am not sure they know. A weiand 8208 SBC water pump. Has the lower radiator hose hookup with a heater hose hookup right above that..am assuming those are both inlets to the pump. What is this top threaded hole? an inlet or outlet? any ideas?
 
 
 
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Posted by ronhotrod  -  04/23/2008 10:06 PM
This is the heater access for an intake without one,i.e. some older tunnel rams, blower and such Hot water goes from the top to heater and then returns via lower hole
ronhotrod [ View ] [ Email ] [ Blogs ] [ Car Ads ] Mount washington, Kentucky Charter Member since July 2001
 
Posted by Crazyhorse Rod Shop  -  04/24/2008 10:53 AM
they are all intakes. the heater feed is in the intake manifold.
dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003
 
Posted by Crazyhorse Rod Shop  -  04/24/2008 10:56 AM
yes it did. the intake is the outflow to the heater and the water pump is the return from the heater. if you look inside a water pump you can see the blade through all 3 holes. another place to pick up water for the heater is the head.
dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003
 
Posted by Crazyhorse Rod Shop  -  04/24/2008 11:28 AM
return has always been in water pump. feed line is out of intake or head.
dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003
 
Posted by cr55  -  04/24/2008 02:15 PM
that's how my corvette is hooked up. Thank god for Shine! ...... CR
I thought that I knew it all , but.. [ View ] [ Email ] [ Blogs ] [ Car Ads ] dover, Delaware
 
Posted by Crazyhorse Rod Shop  -  04/24/2008 02:19 PM
to be honest i never hook heater hoses up. i just plug them off. heat aint a problem around here but having a hot core in the a/c during july sucks.
dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003
 
Posted by cruizznn  -  04/24/2008 09:06 PM
You're right on that Shine..coolant pushes in from the pump into the block and up into the intake, so it pushes out of the intake to the heater core..that is how I have it now and the other heater hose is hooked to the pump on the side above the lower radiator hose. I've got this thing all together and can't see down into the pump to see just where that hole goes into, but I think Ron is right , that is an outlet. That is what weiand told me and I was ok with that until he said ALL heater hoses are outlets. I'll have to tee into the other heater hose for an inlet I guess. would any of you think it would matter where you tie into it at though? By the water pump or up by the firewall..doesn't seem to me it would make any difference if it was in the same line. I'm hooking up a Moroso expansion tank that has a line for an inlet at the bottom and a small return up on the side to keep flow going and hopefully air purged as my radiator is lower than the engine.
cruizznn [ View ] [ Email ] [ Blogs ] [ Car Ads ] Medina, Ohio
 
Posted by BigAlBre  -  04/24/2008 10:42 PM
don't got no stinkin heat hooked up!!!
Big Al sittin back pickin & grinning in paradise. [ View ] [ Email ] [ Blogs ] [ Car Ads ] Saint Petersburg Beach, Florida Charter Member since June 1999
 
Posted by Crazyhorse Rod Shop  -  04/25/2008 07:21 AM
all of the hose connections on the pump are intakes. you can see the impeller through any of them. i dont see how it could be intake by the rad hose and feed on top. i guess the easiest way to find out would be to fire it up without hoses
dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003
 
Posted by Crazyhorse Rod Shop  -  04/25/2008 08:19 AM
well i couldn't stand it. i had to take one apart. dont remember ever going inside a water pump before. if you shine light in the rad hose you can see it in both heater hose holes, not the impeller. dont know where that one came from other than brain cell loss. the impeller takes water through the small 1/4 in hole so everything on the other side is intake. hope this helps.
dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003
 
Posted by cruizznn  -  04/25/2008 08:50 PM
Hey Shine..appreciate you taking time on this thing, but you have me confused now, especially the 1/4 hole thing. What Ron says makes a lot of sense too..just to be on the safe side I think I'll just tee into the heater hose I have going to the pump now on the side, but I want to find an aluminum 5/8" barbed tee to use instead of plastic..seen any anywhere? I wonder even if a Lowes would have something like that..but in metal.
cruizznn [ View ] [ Email ] [ Blogs ] [ Car Ads ] Medina, Ohio
 
Posted by Crazyhorse Rod Shop  -  04/25/2008 08:55 PM
if you look at the pick there is a small hole in the lower right side. that is where water from the rad hose comes into the impeller cavity. all if the hose connections are on the other side. which is return from rad/ heater. heater is fed by the intake or head and returns to the pump.
dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003
 
Posted by Crazyhorse Rod Shop  -  04/25/2008 09:07 PM
just talked to a guy who worked at a rebuild place. told me where to look. there is also an opening behind the impeller, not sure what the small hole is for . but both heater holes are in the front cavity with the rad hose. dont see how you could use one for feed and one for return. i always thought the top one was for a bypass.
dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003
 
Posted by rltaylor46  -  07/01/2008 09:59 PM
Here's another question on this issue, although I think Shine already answered it. Is there any reason I couldn't run my pressure (outflow) hose to the outlet in the head, between cylinders 6 & 8? I don't have enough clearance under the alternator to access the LF access hole in the intake manifold. So, I had thought about using the right side intake port for the temp guage sending unit, (since I've read here that one shouldn't put those sensors in the heads, near the exhaust), then put my fan sensor in the hole in the top of the water pump, and then run the inflow heater hose to the side outlet on the water pump. With a 90 degree fitting installed in that outlet in the head, between cyl's 6 & 8, and using a heater hose with a pre-formed 90 degree bend, that heater hose routes up to the bulkhead fitting just slicker 'n snot. Thanks guys
rltaylor46 [ View ] [ Email ] [ Blogs ] [ Car Ads ] Prescott, Arizona
 
Posted by Crazyhorse Rod Shop  -  07/01/2008 06:45 PM
if you look at the 56 big window build thread (cannons 56 big window ) the heater hose is plumbed into the drivers head between #1 and #3 . i used a hose with a 90degree end on it. the headers are clipsters .
dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003
 
Posted by orphans2  -  07/02/2008 11:08 AM
I'm with you BigAl! Got no stinkin' heat hookup. Might be nice once in while here in Pennsyltucky, but not a necessity.
orphans2 [ View ] [ Email ] [ Blogs ] [ Car Ads ] Stewartstown, Pennsylvannia Charter Member since November 2001
 
Posted by hotrod37  -  07/02/2008 12:06 PM
Going to add my 2 cents (maybe add to the confusion).

Water pump "pumps" the water into the block, then out pass the thermostat through the upper hose connection on intake to the top of the radiator. Water then flows through raditor to lower connection of water pump then into block again. Line coming out of intake ot head whould be water that hasn't passed though thermostat or radiator and would be the hottest. I think that would also mean all connection on the pump would be "flowing" into the pump. So the top hole would be that bypass line from intake again and would flow into pump.

The line from the intake or head would have positive pressure and the line into the pump would have negative pressure.


Does this help?
hotrod37 [ View ] [ Email ] [ Blogs ] [ Car Ads ] Morgantown, Indiana
 
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