Solving an overheat problem
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Hotshot
Joined: Nov 2000
Posts: 11,591
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From: Pflugerville, tx
you bet!.. I never expected the kind of response I have received.
He called right on time as promised today to say that he had picked up the other fan as he promised.. actually he sent one of his employees to get it cause he had another business errand to run in San Antonio..
amazing..
Sam
He called right on time as promised today to say that he had picked up the other fan as he promised.. actually he sent one of his employees to get it cause he had another business errand to run in San Antonio..
amazing..
Sam
Elder User
Joined: Jan 2002
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From: Augusta, Georgia
Sam,
Thank goodness that some of us in the automotive repair industry still have a passion for what we do; Jay must have that.
By the way, did you ever ask him what type of construction was used on your core? Just curious...
Thank goodness that some of us in the automotive repair industry still have a passion for what we do; Jay must have that.
By the way, did you ever ask him what type of construction was used on your core? Just curious...
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Hotshot
Joined: Nov 2000
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From: Pflugerville, tx
Sam
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Hotshot
Joined: Nov 2000
Posts: 11,591
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From: Pflugerville, tx
we actually decided to go with a flow restrictor instead of a tstat. theory is that for whatever reason we don't have enough flow. the flow restrictor is really just the top hat of the tstat.
I should have added that for the shiny engine, I went with a tstat cover from a 351C
and NOT from the 460.
. this is chromed and straight up, vs the angled ones used on the 460. I think the opening is 1.25 inches inside vs 1.5 inches on the 460 waterneck housing.
Jay picked up the 10in Maradyne fan as well. and that is installed. waiting for the rtv on the tstat housing to dry (from last night)..
so, yes, I am making TWO changes at the same time. I can unplug the second fan..
Sam
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Hotshot
Joined: Nov 2000
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From: Pflugerville, tx
YIPPEEEEEEEEEEE!! the temps come DOWN with the new dual fan and flow restrictor. finally.. I had the fans set to come on at 195, and they pulled the temp back down to 185 pretty quickly (5 mins). I dropped the fan start temp to 185, and now the temps hold pretty solid at 185. When I drive, I expect that the temp will come down a little and the fans will turn off. raining today so can't test that.
this is with the grill and A/C condenser installed. A/C condenser spaced about 1 inch away from the radiator.
Sam
this is with the grill and A/C condenser installed. A/C condenser spaced about 1 inch away from the radiator.
Sam
Senior User
Joined: Aug 2001
Posts: 421
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From: Glendale, AZ
I was going to suggest that a 6 core rad may be too thick for good airflow. I can't recall ever seeing a 6 core rad. I think this was suggested early on also. But after continued reading it seems Jay is aware that this can be overcome by better fans. Just curious if you and Jay had discussed fans/shrouds etc when you first had the rad built. Anyway glad to hear you're gettin her whipped and if it's any consolation you're providing alot of good info to the rest of us.
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From: Westminster,Md
Good news eh!...I know,that you know,..that you never try "two" fix's at the same time...cos you won't know which one actually fixed it.., but in this case I think things are being narrowed down to the point where you are pretty safe..Congratulations!
You can expect alot of crazy questions regarding the description of said "restriction" in the system ( a picture would be cool...),some may refer to it as "less-of-an-obstruction"...LoL!
I'm also glad to hear you have had a positve hands'on experience with Jay and his Company...ole'school values and traditions backing up the product with the service that you deserve as a paying customer..
Frosties all around!!
Let us know what the temps were with and with out the fan so we can get an idea what the restrictor is doing...
You can expect alot of crazy questions regarding the description of said "restriction" in the system ( a picture would be cool...),some may refer to it as "less-of-an-obstruction"...LoL!
I'm also glad to hear you have had a positve hands'on experience with Jay and his Company...ole'school values and traditions backing up the product with the service that you deserve as a paying customer..
Frosties all around!!
Let us know what the temps were with and with out the fan so we can get an idea what the restrictor is doing...
Thread Starter
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Hotshot
Joined: Nov 2000
Posts: 11,591
Likes: 14
From: Pflugerville, tx
I was going to suggest that a 6 core rad may be too thick for good airflow. I can't recall ever seeing a 6 core rad. I think this was suggested early on also. But after continued reading it seems Jay is aware that this can be overcome by better fans. Just curious if you and Jay had discussed fans/shrouds etc when you first had the rad built. Anyway glad to hear you're gettin her whipped and if it's any consolation you're providing alot of good info to the rest of us.
but without the shroud things are ok operationally, just not as pretty under the hood.
Sam
Thread Starter
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Hotshot
Joined: Nov 2000
Posts: 11,591
Likes: 14
From: Pflugerville, tx
Good news eh!...I know,that you know,..that you never try "two" fix's at the same time...cos you won't know which one actually fixed it.., but in this case I think things are being narrowed down to the point where you are pretty safe..Congratulations!
You can expect alot of crazy questions regarding the description of said "restriction" in the system ( a picture would be cool...),some may refer to it as "less-of-an-obstruction"...LoL!
I'm also glad to hear you have had a positve hands'on experience with Jay and his Company...ole'school values and traditions backing up the product with the service that you deserve as a paying customer..
Frosties all around!!
Let us know what the temps were with and with out the fan so we can get an idea what the restrictor is doing...
You can expect alot of crazy questions regarding the description of said "restriction" in the system ( a picture would be cool...),some may refer to it as "less-of-an-obstruction"...LoL!
I'm also glad to hear you have had a positve hands'on experience with Jay and his Company...ole'school values and traditions backing up the product with the service that you deserve as a paying customer..
Frosties all around!!
Let us know what the temps were with and with out the fan so we can get an idea what the restrictor is doing...
Jay said 'This will WORK, no doubt about it' as he handed me the restrictor.
Moroso and Weiand sell restrictor washers..
I even found adjustable versions
http://www.doveengineparts.com/documents/51.html
some fit in the waterneck, some in the lower rad hose. (see attachment)
what Jay did was take a cheap stock tstat (like on the right below) and clip the two bars under the cap, the guts fall out.. voila, restrictor.
I was using a tstat like the bottom picture.. (the 'better' one)..
Sam
Senior User
Joined: Feb 2006
Posts: 216
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From: cleveland,Oh.
Thats great newz Sam, its been a very educational thread. As others have stated it's very refreshing to find a vendor that stands behind their products, and have great customer support to boot.
Thread Starter
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Hotshot
Joined: Nov 2000
Posts: 11,591
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From: Pflugerville, tx
and I want to thank everyone who contributed ideas to my quest. the help was truly very valuable to me.
The real culprit turns out to be the thermostat itself. I bought a good ($7), failsafe, not 'high flow' model. (didn't even know about high flow model) as part of the final build after engine build
. The cheap ($2) one might have prevented the flow problem. 
The secondary culprit may have been not enough fan for the rad size. We don't know if the twin fans on the shroud could have kept up. (I'm not changing back)
and of course, I don't have the A/C working yet, cause it appears one of the fittings under the dash is loose.. vendor who did the interior will help fix that at the end of the month before GoodGuys Texas.
Now I have to go talk to the gauge vendor(again)
, cause the temp gauge is off about 15degrees. (shows 195 when temp is at 180) (I have a bunch of different senders I could try, just want to find out the ohm range.. as it they'll know!) They on the other hand (Compared to Jay), don't have a clue about their product, or customer service. (or how to run a business for that matter). 
Sam
The real culprit turns out to be the thermostat itself. I bought a good ($7), failsafe, not 'high flow' model. (didn't even know about high flow model) as part of the final build after engine build
. The cheap ($2) one might have prevented the flow problem. The secondary culprit may have been not enough fan for the rad size. We don't know if the twin fans on the shroud could have kept up. (I'm not changing back)
and of course, I don't have the A/C working yet, cause it appears one of the fittings under the dash is loose.. vendor who did the interior will help fix that at the end of the month before GoodGuys Texas.
Now I have to go talk to the gauge vendor(again)
, cause the temp gauge is off about 15degrees. (shows 195 when temp is at 180) (I have a bunch of different senders I could try, just want to find out the ohm range.. as it they'll know!) They on the other hand (Compared to Jay), don't have a clue about their product, or customer service. (or how to run a business for that matter). Sam
Thread Starter
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Hotshot
Joined: Nov 2000
Posts: 11,591
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From: Pflugerville, tx
and on the Rad build. I took Jay the rad U, mounted to the front valence, and said, it has to fit inside here. passenger in(1.5in), driver out(2in), fill not on the top surface, tranny cooler, supporting a modified 460. they did the rest. built custom tanks, etc.
that was now over 3 yrs ago. (gallery says pics created 4/15/06!!, gallery shows one 16in mounted directly to fan for testing!).
talk about support for your product..
Sam
that was now over 3 yrs ago. (gallery says pics created 4/15/06!!, gallery shows one 16in mounted directly to fan for testing!).
talk about support for your product..
Sam
