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08-28-2014, 10:01 PM
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#1 |
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Registered User
Join Date: May 2008
Location: Mesa, AZ
Posts: 281
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Transmission Cooler Fittings (Question)
Background: PO installed an external transmission cooler mounted several inches in front of the radiator. The lines were removed from the radiator and re-routed up the front of the radiator where 3/8" fuel hose was slid over the inverted flares leaving the nuts intact.
Problem: When towing I get the smell of burned rubber. I suspect the external is undersized, and being so far from the radiator, gets little air flow from the fan. Planned solution: Re integrate the radiator cooler, and run the external cooler in series. Situation: External cooler has 3/8" hose barbs. I'm trying to find the correct 5/16" inverted flare to 3/8" hose barbs, both for the radiator, and the original metal line. I ordered Jegs 60340 which is the wrong thread. I've found Hayden 393 from many sources on the internet. But I can't, for the life of me, find the hose barb size. I need it to be 3/8". Does anyone know for sure?
__________________
I own 3 classic vehicles. 1971 LWB C10 Deluxe. 1974 VW Super Beetle. 1971 VW Fastback. The C10 and the Super Beetle run, the Fastback is just not there yet! Please visit my Super Beetle and Fastback profile on TheSamba. |
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08-29-2014, 08:30 AM
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#2 |
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Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,144
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Re: Transmission Cooler Fittings (Question)
I would not use an external cooler only. If you tow, you will not get enough cooling from that alone. You need the one in the radiator too.
__________________
'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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08-29-2014, 12:10 PM
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#3 |
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Registered User
Join Date: May 2008
Location: Mesa, AZ
Posts: 281
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Re: Transmission Cooler Fittings (Question)
Yeah, I know. It was that why when I acquired the truck. I'd like to reintegrate the in-radiator cooler along with the external cooler.
But I don't want to cut the steel likes, I'd like to use adapters to run a 3/8" hose. The Hayden 393 looks to be the right fitting set. But what diameter is the hose barb?
__________________
I own 3 classic vehicles. 1971 LWB C10 Deluxe. 1974 VW Super Beetle. 1971 VW Fastback. The C10 and the Super Beetle run, the Fastback is just not there yet! Please visit my Super Beetle and Fastback profile on TheSamba. |
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08-29-2014, 01:56 PM
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#4 |
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Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,144
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Re: Transmission Cooler Fittings (Question)
I don't know, but I would guess it is 5/16-but might be 3/8. There is probably a reason that the radiator cooler is not connected-like it leaks to water. Is it plugged off or open?
__________________
'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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08-29-2014, 08:02 PM
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#5 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: Transmission Cooler Fittings (Question)
I would run some water through it first are even have it flushed good before using it. Good call on checking it first before using it.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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08-29-2014, 11:15 PM
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#6 |
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Registered User
Join Date: May 2008
Location: Mesa, AZ
Posts: 281
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Re: Transmission Cooler Fittings (Question)
The ends were open. It does not leak. I've already run fluid through it. I was surprised how clean it was.
The reason it's not used, I suspect, is whomever installed the external cooler simply didn't know any better.
__________________
I own 3 classic vehicles. 1971 LWB C10 Deluxe. 1974 VW Super Beetle. 1971 VW Fastback. The C10 and the Super Beetle run, the Fastback is just not there yet! Please visit my Super Beetle and Fastback profile on TheSamba. |
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