Heat Soak

Modified FSJ Tech Area

letank
Posts: 3988
Joined: Wed Oct 03, 2012 9:16 pm
Location: SF bay area

Re: Heat Soak

Post by letank »

the least damaging way, lift up the hood a tad

viewtopic.php?t=338&sid=3eba7940bdf6438 ... f6010a8ccc

Image

Image

and yes facing rearward is the way, there is a low pressure in front of the windshield that will suck out more air from under the hood

this is also why the fan shroud has no lower shroud, to use that low pressure under the engine to suck more heat from the radiator
Michel
74 wag (349 Kmiles... parked, next step is a rust free body)
85 Gwag (229 Kmiles... the running test lab)
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devildog80
Posts: 1013
Joined: Wed Apr 13, 2022 2:41 pm
Location: Apache Junction AZ

Re: Heat Soak

Post by devildog80 »

Perfect logic, so will point louvers to the widshield. Also going to go back to mechanical fuel pump, which should give better cooling of fuel line, but keeping the electric in line for initial purge after sitting for some time. Might not be needed once I get 4 bbl setup done with mechanical pump, but its there if needed.

Spacing the hood up just a tic would have same results, or better, than louvers.
Thanks for feedback :)
'81 CJ5 Base, 258 I6, MC2100, T176 4 spd, 300 TC, D30 Front NT, 3.31, 2-Piece AMC 20 rear NT, 3.31, 4" high arc spring lift
'84 Grand Wagoneer, 401 V8 (.030 over), MC2150 HA Comp, 727 auto, Selec-trac NP229, AMC 20 REAR - D44 FRONT - WT 3.31, 4" high arc spring lift
Rather be driving, than waiting to be modified

OldFarmTruck22
Posts: 243
Joined: Sat Mar 05, 2022 4:35 pm

Re: Heat Soak

Post by OldFarmTruck22 »

JWestfall wrote: Thu Feb 08, 2024 10:05 am That's what I have. I just didn't call it the right thing.
What I see in the picture is not DEI or any other company, proper fuel line insulating wrap. Its foam.
78 FSJ AMC 360 Quadratrac

Topic author
JWestfall
Posts: 81
Joined: Fri Feb 05, 2021 12:39 pm
Location: North Eastern California

Re: Heat Soak

Post by JWestfall »

Not my picture. I haven’t posted any pictures of my engine. I ran the fuel pump for a few seconds and pumped the gas once after it sat hot the other day just in case it was fuel starved instead of flooded. Didn’t help. It’s definitely flooding from the heat soak.
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