I need some tips on keeping cool
-
- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
I need some tips on keeping cool
So, I got the 28 AA running and took it for a ride only to find out it gets hot. Steaming a lot.. Just put on a new two blade fan as original, New water pump impeller, had all the holes in the radiator fixed and filled with 50% water and antifreeze.
Any tips on keeping it cool would be usefull. Timing? Gas mixture? Do I need a shroud on the fan?
KVO
Any tips on keeping it cool would be usefull. Timing? Gas mixture? Do I need a shroud on the fan?
KVO
KVO
Dec. '28 AA
Dec. '28 AA
Re: I need some tips on keeping cool
cool running idea: i had a 30 model a woody. it would run hot, no leaks, good fan, correct timing. it was a matter of scale and dirt in radiator. i filled the radiator with white distilled vinegar and drove it around for a day, flushed it 3 times with clear water driving it one day each, and it ran nice and cool. i think i probably increased the surface area for cooling an awful lot. i always run the timing advanced on steering column all the way too once warmed up. hope this helps. you can also fill the radiator and then pull off the bottom hose and measure how many seconds it takes to drain it into a bucket. do this before and after the vinegar treatment and compare the drain time.
-
- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: I need some tips on keeping cool
birdacre wrote:cool running idea: i had a 30 model a woody. it would run hot, no leaks, good fan, correct timing. it was a matter of scale and dirt in radiator. i filled the radiator with white distilled vinegar and drove it around for a day, flushed it 3 times with clear water driving it one day each, and it ran nice and cool. i think i probably increased the surface area for cooling an awful lot. i always run the timing advanced on steering column all the way too once warmed up. hope this helps. you can also fill the radiator and then pull off the bottom hose and measure how many seconds it takes to drain it into a bucket. do this before and after the vinegar treatment and compare the drain time.
Thanks for the Tip. I've got radiator flush / cleaner. I'll run that through first then the vinigar treatment then maybe more Cleaner. I think your prognosis is correct. Needs a good cleaning.
Is it supposed to have a shroud around the fan?
KVO
KVO
Dec. '28 AA
Dec. '28 AA
- 1crosscut
- Posts: 877
- Joined: December 25th, 2010, 7:22 pm
- Body Type: 82-A
- Model Year: 1929
- Location: Lincoln, NE
Re: I need some tips on keeping cool
Timing too advanced?
Radiator filled with crud.
Pull the radiator out, plug the bottom outlet and put in 1 gallon of straight Simple Green. Slosh it around and let it sit. Do this several times a day for a couple of days or so. Flush well with clean water.
Fins on the radiator loose from the verticle tubes? Not heat transfer if not connected well.
Paint too thick on radiator fins? Again poor heat transfer.
Water level too high causing it to look like it is over heating? Just need enough water to cover the tubes. AA's will puke and steam water out until they find the level they like.
Check to see if it is actually over heating. Get a cheap meat thermometer and stick it in the radiator when "hot".
Get an infrared thermometer and check for hot / cool spots over the entire surface of the radiator cooling fins.
Block plugged with crud? Disconnect upper and lower hoses and flush with strong stream of water from garden hose. Run a 50/50 mix of Simple Green and H2O for a while. Drain and rinse. Possibly refill with vinegar and run that for a while to dissove rust. Rinse well.
Head gasket leaking into cooling system? torque head bolts. Pull fan belt off and look for bubbles while reving engine or get test kit.
Open your GAV if running too lean.
Hope that this helps.
Dave
Radiator filled with crud.
Pull the radiator out, plug the bottom outlet and put in 1 gallon of straight Simple Green. Slosh it around and let it sit. Do this several times a day for a couple of days or so. Flush well with clean water.
Fins on the radiator loose from the verticle tubes? Not heat transfer if not connected well.
Paint too thick on radiator fins? Again poor heat transfer.
Water level too high causing it to look like it is over heating? Just need enough water to cover the tubes. AA's will puke and steam water out until they find the level they like.
Check to see if it is actually over heating. Get a cheap meat thermometer and stick it in the radiator when "hot".
Get an infrared thermometer and check for hot / cool spots over the entire surface of the radiator cooling fins.
Block plugged with crud? Disconnect upper and lower hoses and flush with strong stream of water from garden hose. Run a 50/50 mix of Simple Green and H2O for a while. Drain and rinse. Possibly refill with vinegar and run that for a while to dissove rust. Rinse well.
Head gasket leaking into cooling system? torque head bolts. Pull fan belt off and look for bubbles while reving engine or get test kit.
Open your GAV if running too lean.
Hope that this helps.
Dave
------------
Dave
Dave
- spectria
- Posts: 1874
- Joined: May 15th, 2008, 9:53 pm
- Body Type: Mail Truck, Stakebed
- Model Year: 1931
- Location: Quincy, Ca.
Re: I need some tips on keeping cool
Dave, do you know what makes simple green clean in a cooling system? I thought it was more of a degreaser than an anti-corrosive.1crosscut wrote:...Radiator filled with crud. Pull the radiator out, plug the bottom outlet and put in 1 gallon of straight Simple Green. Slosh it around and let it sit. Do this several times a day for a couple of days or so. Flush well with clean water.... Hope that this helps. Dave
Dave in Quincy, Ca. I love Pics!!!! Post them All!!!
Join the Ford Model AA Truck Club - membership form at http://www.fmaatc.org
Join the Ford Model AA Truck Club - membership form at http://www.fmaatc.org
-
- Posts: 478
- Joined: June 3rd, 2013, 6:15 pm
- Body Type: 186-B stake
- Model Year: 1931
- Location: LHC Arizona & UP Michigan
Re: I need some tips on keeping cool
1crosscut, great advice for overheating problems. One thing you did not mention is a problem I have had a few times: if a mouse gets in a radiator or a block, because the cap was left off or a hose was left off, they love to get in those spaces and build nests. Definitely will cause major overheating, and difficult to clean out.
AA GUYS: never leave an entrance for mice. Plug holes in radiators and blocks in storage. One thing mice will not chew through is greasy, oily rags. Yes those old oily rags have an important use, use them to plug your radiator and block cooling hose connections. The oily the better.
AA GUYS: never leave an entrance for mice. Plug holes in radiators and blocks in storage. One thing mice will not chew through is greasy, oily rags. Yes those old oily rags have an important use, use them to plug your radiator and block cooling hose connections. The oily the better.
-
- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: I need some tips on keeping cool
Thanks for all the tips. A quick Question..
It was mentioned to "Open GAV if running lean". What is GAV ? I'm not up on my TLAs.
Also what Temp. should a model A system run at? Has to be below 212 Deg. But what should it be?
Also should I order the fan shroud to enhance cooling?
Got to get it ready for the Labor Day Parade.
Thanks again...
KVO
It was mentioned to "Open GAV if running lean". What is GAV ? I'm not up on my TLAs.
Also what Temp. should a model A system run at? Has to be below 212 Deg. But what should it be?
Also should I order the fan shroud to enhance cooling?
Got to get it ready for the Labor Day Parade.
Thanks again...
KVO
KVO
Dec. '28 AA
Dec. '28 AA
-
- Posts: 478
- Joined: June 3rd, 2013, 6:15 pm
- Body Type: 186-B stake
- Model Year: 1931
- Location: LHC Arizona & UP Michigan
Re: I need some tips on keeping cool
Another thing is, since you mentioned your radiator needed repair: sometimes some of the "stop-leak" solutions can clog up radiator passages, especially if there is rust in the water. I once tried to seal a cracked block in a '48 Chevy with stop-leak, and it plugged up the whole radiator so bad I had to replace it. One way to check radiator flow would be to remove both hoses, plug the upper outlet, then run a garden hose in the filler. The water should flow freely through the radiator and out the bottom without backing up. Same with the engine, water poured in the top should flow quickly out the side outlet.
-
- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: I need some tips on keeping cool
1crosscut wrote:Timing too advanced?
Radiator filled with crud.
Pull the radiator out, plug the bottom outlet and put in 1 gallon of straight Simple Green. Slosh it around and let it sit. Do this several times a day for a couple of days or so. Flush well with clean water.
Fins on the radiator loose from the verticle tubes? Not heat transfer if not connected well.
Paint too thick on radiator fins? Again poor heat transfer.
Water level too high causing it to look like it is over heating? Just need enough water to cover the tubes. AA's will puke and steam water out until they find the level they like.
Check to see if it is actually over heating. Get a cheap meat thermometer and stick it in the radiator when "hot".
Get an infrared thermometer and check for hot / cool spots over the entire surface of the radiator cooling fins.
Block plugged with crud? Disconnect upper and lower hoses and flush with strong stream of water from garden hose. Run a 50/50 mix of Simple Green and H2O for a while. Drain and rinse. Possibly refill with vinegar and run that for a while to dissove rust. Rinse well.
Head gasket leaking into cooling system? torque head bolts. Pull fan belt off and look for bubbles while reving engine or get test kit.
Open your GAV if running too lean.
Hope that this helps.
Dave
KVO
Dec. '28 AA
Dec. '28 AA
- captain marty
- Posts: 208
- Joined: May 13th, 2009, 6:58 pm
- Body Type: firetruck
- Model Year: 1928
- Location: Tulsa
Re: I need some tips on keeping cool
The GVA:
Carburetor Adjustment Knob, often called the GAV (Gas Air Valve) inside the cab.
Like mentioned above, if you run too retarded, it will overheat.
Good luck,
Marty
Carburetor Adjustment Knob, often called the GAV (Gas Air Valve) inside the cab.
Like mentioned above, if you run too retarded, it will overheat.
Good luck,
Marty
- 1crosscut
- Posts: 877
- Joined: December 25th, 2010, 7:22 pm
- Body Type: 82-A
- Model Year: 1929
- Location: Lincoln, NE
Re: I need some tips on keeping cool
It is more of a de-greaser / grime remover. Not any good for rust and hard water deposits but does an excellent job of getting the grease out that finds its way in the radiator from over greasing the water pump.spectria wrote:Dave, do you know what makes simple green clean in a cooling system? I thought it was more of a degreaser than an anti-corrosive.1crosscut wrote:...Radiator filled with crud. Pull the radiator out, plug the bottom outlet and put in 1 gallon of straight Simple Green. Slosh it around and let it sit. Do this several times a day for a couple of days or so. Flush well with clean water.... Hope that this helps. Dave
Dave
------------
Dave
Dave
- 1crosscut
- Posts: 877
- Joined: December 25th, 2010, 7:22 pm
- Body Type: 82-A
- Model Year: 1929
- Location: Lincoln, NE
Re: I need some tips on keeping cool
Temperature on A's will run anywhere from the 160's and up. I would guess the average is 175 ish. Mine tends to run under 170.KimVanOrder wrote:Thanks for all the tips. A quick Question..
It was mentioned to "Open GAV if running lean". What is GAV ? I'm not up on my TLAs.
Also what Temp. should a model A system run at? Has to be below 212 Deg. But what should it be?
Also should I order the fan shroud to enhance cooling?
Got to get it ready for the Labor Day Parade.
Thanks again...
KVO
------------
Dave
Dave
-
- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: I need some tips on keeping cool
anyone have a dissertation on timing, adv. or retarted and what runs hotter and what it should be at.
Info and or advice?
kvo
Info and or advice?
kvo
KVO
Dec. '28 AA
Dec. '28 AA
-
- Posts: 603
- Joined: May 15th, 2010, 2:34 pm
- Body Type: dump
- Model Year: 1930
- Location: Eastern, CT
Re: I need some tips on keeping cool
I know Marco has a good write up on timing over on the Fordbarn.
Red
Red
-
- Posts: 1442
- Joined: April 24th, 2003, 11:50 am
- Body Type: Mail truck, Stake tr
- Model Year: 1931
- Location: SO CAL
Re: I need some tips on keeping cool
Here is a link to Marco's timing instructions http://www.abarnyard.com/workshop/timing.htm
Here is a link to the owners instruction manual, takes a minute to download. http://www.motormayhem.net/model-a-ford ... rs-manual/
Bob
Here is a link to the owners instruction manual, takes a minute to download. http://www.motormayhem.net/model-a-ford ... rs-manual/
Bob