BRINGING IT ALL TOGETHER.... A's, G's & E's


1st Gen Heater Core

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BILLS66

Number of posts : 1370
Location : Salem Or.
Age : 57
Registration date : 2008-05-17

Re: 1st Gen Heater Core

Post by BILLS66 on Sun Dec 18, 2011 2:54 pm

Joe, A heater/defroster is sure nice around here. Bill

sparky

Number of posts : 195
Location : California!
Registration date : 2010-01-05

Heater Core

Post by sparky on Sun Dec 18, 2011 9:02 pm

I went to the Advance auto parts website and typed in that part # 398237 and the picture of the heater core that popped up didnt have a "ponytail" ?
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donivan65
Governor
Governor

Number of posts : 11431
Location : San Diego, California
Registration date : 2008-05-12

Re: 1st Gen Heater Core

Post by donivan65 on Sun Dec 18, 2011 9:16 pm

That usually is the problem,,,,nobody has pictures of our parts, HOWEVER, thats why I asked KookyKrispy to show me the heater core,,,,and,,,,it really is the one we need,,,,this is one of our HIDDEN FINDS,,,,,but then , of course, he could of got the last one and now all they have is that Universal one,,,,,,,,

sparky

Number of posts : 195
Location : California!
Registration date : 2010-01-05

Re: 1st Gen Heater Core

Post by sparky on Sun Dec 18, 2011 9:24 pm

I wonder if we could call them and ask 'em to look at it for us ?
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donivan65
Governor
Governor

Number of posts : 11431
Location : San Diego, California
Registration date : 2008-05-12

Re: 1st Gen Heater Core

Post by donivan65 on Sun Dec 18, 2011 9:36 pm

I would think Joe just believed the right one would come,,,,,and I doubt anyone keeps our van parts on the shelf so it would of probably of been a special order from a warehouse,,,,,and it might be hard to actually find a human to talk to there,,,,so thats why I got this post going,,, to keep us up to date on any changes that come up.....
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Nightmoves

Number of posts : 2214
Location : Old Hickory Tenn.
Age : 57
Registration date : 2008-11-17

Re: 1st Gen Heater Core

Post by Nightmoves on Mon Dec 19, 2011 7:30 pm

And to add,on the phone,the order taker(sales rep)usually don't have one iota of a clue whats goin on.Just the same pic that we see as well.He's just takin an order.
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jrinaman

Number of posts : 778
Location : zelienople,pa.
Age : 53
Registration date : 2011-03-10

Re: 1st Gen Heater Core

Post by jrinaman on Mon Dec 19, 2011 7:45 pm

no, they see a part number and dont know the difference between a spark plug and a quart of oil.
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kookykrispy

Number of posts : 1450
Location : Tacoma, WA
Age : 44
Registration date : 2009-05-22

Re: 1st Gen Heater Core

Post by kookykrispy on Tue Dec 20, 2011 9:07 am

sparky wrote:I went to the Advance auto parts website and typed in that part # 398237 and the picture of the heater core that popped up didnt have a "ponytail" ?

Don't worry about the photo on their website. I know it is confusing because the photo on their website is simply of a generic heater core... not the actual part! Order part #398237 for 1964-66 chevy van. That is the heater core I purchased and posted pics of. It fits 1st gen chevy van and works great. I've been driving my van all over the place now that I have heat!

Advance auto online is offering 20% off all parts up to a $50 discount using code P20 when you check out.. sale is through Dec 24th!
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Lazarusvan

Number of posts : 1292
Location : Charleston, South Carolina
Age : 44
Registration date : 2011-02-22

Re: 1st Gen Heater Core

Post by Lazarusvan on Mon Jan 02, 2012 6:58 pm

May seem like a basic question, but how do you know if your heater core puts out what it should? I was getting a 55 degree outdoor temp on my phone and my van was running 19o degrees on the thermo at Interstate speeds. Thermo is accurate to within 5 degrees.

It never really got warm enough. When I let the thermo hit 195 but cutting the fan to low, it seemed to make a little more difference, but nothing significant. I do have some draft coming from the door. Rear cargo area is insulated and carpeted. Not sure what is a reasonable expectation. I wondered if the engine was warm enough to make enough heat?
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Digz

Number of posts : 3720
Location : United States Six Lakes MI
Registration date : 2008-05-17

Re: 1st Gen Heater Core

Post by Digz on Mon Jan 02, 2012 7:24 pm

Mine seems to warm up fairly cozy, had it out in some 30* weather last week. It made me wonder if that old tin can I had in high school was running somewhat plugged. Might be worth trying to back flush it ? Got a buddy with a IR temp reader? If the core temp is good , it might be air restricted where it faces the opening into the grill area with stuff. Its not hard to pop the blower off to get at it to check a couple things , or blow it out with air maybe.
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donivan65
Governor
Governor

Number of posts : 11431
Location : San Diego, California
Registration date : 2008-05-12

Re: 1st Gen Heater Core

Post by donivan65 on Mon Jan 02, 2012 8:05 pm

I don't have too much faith in cleaning a heater core,,,,,those tubes are REALLY small,,,,,you can't even slide a hacksaw blade in them,,,,,they surely are plugged up from all the junk that the radiator has sent down to it,,,,,,,,




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Digz

Number of posts : 3720
Location : United States Six Lakes MI
Registration date : 2008-05-17

Re: 1st Gen Heater Core

Post by Digz on Mon Jan 02, 2012 8:23 pm

Yeah I agree, I have had limited short term results from backflushing heater cores as a rule.
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donivan65
Governor
Governor

Number of posts : 11431
Location : San Diego, California
Registration date : 2008-05-12

Re: 1st Gen Heater Core

Post by donivan65 on Mon Jan 02, 2012 8:52 pm

,,,,,and if you use any kind of stop leak,,,,,those tubes are done for,,,,,,
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kookykrispy

Number of posts : 1450
Location : Tacoma, WA
Age : 44
Registration date : 2009-05-22

Re: 1st Gen Heater Core

Post by kookykrispy on Mon Jan 02, 2012 10:51 pm

Lazarusvan wrote:May seem like a basic question, but how do you know if your heater core puts out what it should? I was getting a 55 degree outdoor temp on my phone and my van was running 19o degrees on the thermo at Interstate speeds. Thermo is accurate to within 5 degrees.

It never really got warm enough. When I let the thermo hit 195 but cutting the fan to low, it seemed to make a little more difference, but nothing significant. I do have some draft coming from the door. Rear cargo area is insulated and carpeted. Not sure what is a reasonable expectation. I wondered if the engine was warm enough to make enough heat?

That sounds like the problem I was having. My heater core was all clogged up so it wasn't putting out any heat. It was actually heavier than the old one from all the crud that was stuck in there. After 45 years, these need to be replaced. Replace the hoses too. With the new core, my van is now warm and toasty, even on the coldest days
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Lazarusvan

Number of posts : 1292
Location : Charleston, South Carolina
Age : 44
Registration date : 2011-02-22

Re: 1st Gen Heater Core

Post by Lazarusvan on Tue Jan 03, 2012 6:59 am

Thanks, guys. No stop leak for me (right Digz pirat ?)

The old radiator had been replaced recently after it had been flushed and was still not cooling the van down, so gunk is a good possibility. Only good thing about replacing all the stuff since purchase is at least I know what I've got...
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Lazarusvan

Number of posts : 1292
Location : Charleston, South Carolina
Age : 44
Registration date : 2011-02-22

Re: 1st Gen Heater Core

Post by Lazarusvan on Tue Jan 03, 2012 2:36 pm

Dumbass alert: It helps when the switch is turned "on." I wondered why it had gotten warm last time and all the sudden stopped working... Rolling Eyes Rolling Eyes Rolling Eyes Our weather was briefly cold and then got warm (sorry snowbirds). We'll be back up to 65 degrees this Friday.

At least I can admit my shortcomings...

Guest
Guest

Re: 1st Gen Heater Core

Post by Guest on Wed Jan 04, 2012 12:33 am

Great thread.
I'll be doing mine (2nd Gen) as well. Radiator is leaking now. Going to do both units including hoses.
Has anyone sourced new 2nd Gen radiators?
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donivan65
Governor
Governor

Number of posts : 11431
Location : San Diego, California
Registration date : 2008-05-12

Re: 1st Gen Heater Core

Post by donivan65 on Wed Jan 04, 2012 9:14 am

Which radiator do you have in there,,,,a downflow or a crossflow?



Guest
Guest

Re: 1st Gen Heater Core

Post by Guest on Wed Jan 04, 2012 10:01 am

Downflow. The 2nd Gen 6Cyl radiator in your more than excellent photo is it I believe.
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donivan65
Governor
Governor

Number of posts : 11431
Location : San Diego, California
Registration date : 2008-05-12

Re: 1st Gen Heater Core

Post by donivan65 on Wed Jan 04, 2012 10:40 am

The crossflows have a surge tank on top,,,,,there is no radiator cap on that 4 row of tubes radiator,,,,,and you could of ordered this set up on a 6 cylinder,,,,,,



Guest
Guest

Re: 1st Gen Heater Core

Post by Guest on Wed Jan 04, 2012 11:31 am

Thanks Don,
I see new radiators like this listed for my vehicle. What are the dimensions of the one in the photo and do you know if/where the brackets would be available?
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donivan65
Governor
Governor

Number of posts : 11431
Location : San Diego, California
Registration date : 2008-05-12

Re: 1st Gen Heater Core

Post by donivan65 on Wed Jan 04, 2012 1:50 pm

I would say they only think they have a radiator that fits your van,,,,,,the upper mount is welded to the bump outs in your doghouse,,,,the lower is bolted to your frame,,,,,it needs a recirc line that goes into your upper hose to get the air out of the system,,,,those are all wrecking yard parts,,,,,and if you have the 4 row radiator,,,,,,you got the best cooling Chevy Van radiator out there,,,,,,I thought about putting in that 2nd Gen cooling system,,,,but I changed my mind,,,,,










Guest
Guest

Re: 1st Gen Heater Core

Post by Guest on Wed Jan 04, 2012 11:10 pm

Do you still have these parts? If so, would you like to sell them?
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donivan65
Governor
Governor

Number of posts : 11431
Location : San Diego, California
Registration date : 2008-05-12

Re: 1st Gen Heater Core

Post by donivan65 on Thu Jan 05, 2012 12:19 am

I still have them, but I am keeping them,,,,I might need them some day,,,,,,I probably got an extra surge tank and leaky radiator,,,,,maybe a bottom mount,,,,,you would surely need to get the radiator recored,,,,the rest of the parts are not too hard to find,,,especially in LA,,,,you got all kinds of Pick a Parts up there,,,,,and people post when they find an Early up there that needs pickin,,,,,
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mbasaraba

Number of posts : 820
Location : North Central Alabama
Registration date : 2009-01-08

Re: 1st Gen Heater Core

Post by mbasaraba on Thu Jan 05, 2012 4:38 am

Don,

Is this the best setup to go with for a V8 given the extra volume? I am watching an expansion tank on Ebay right now.

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