|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
01-14-2022, 08:10 PM | #1 |
Senior Member
Join Date: Sep 2016
Location: sydney australia
Posts: 1,025
|
raising fan height
pure questions and theory at this stage? possibly later ? OK what this is about is whats involved in taking the fan off the crank and putting it higher up what we have is a 39 mercury with a 59A [original style ] currently running a crab distributor and single wide belt pump/generator drive main questions are whats involved with the crank pully and belt clearance around the dizzy area and fan to rad clearance cause ther aint a lot of room in there
|
01-14-2022, 09:42 PM | #2 |
Senior Member
Join Date: May 2010
Location: Coral Springs FL
Posts: 10,855
|
Re: raising fan height
RE:
"Pure questions and theory at this stage? Possibly later? OK, what this is about is what's involved in taking the fan off the crank and putting it higher up. What we have is a 39 Mercury with a 59A [original style ] currently running a crab distributor and single wide belt pump/generator drive. Main questions are: What's involved with the crank pulley and belt clearance around the dizzy area and fan to rad clearance because there isn't a lot of room in there." Can you post a few photos? |
Sponsored Links (Register now to hide all advertisements) |
|
01-14-2022, 10:13 PM | #3 |
Senior Member
Join Date: May 2010
Location: Masterton, New Zealand
Posts: 3,813
|
Re: raising fan height
I think the best solution is to fit the 39 crank pulley and fan to the 59A engine. it'll all fit right up
__________________
Unfortunately, two half wits don't make a whole wit! |
01-14-2022, 10:42 PM | #4 |
Senior Member
Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,773
|
Re: raising fan height
|
01-14-2022, 11:10 PM | #5 |
Senior Member
Join Date: May 2010
Location: Oshkosh, Wi
Posts: 4,509
|
Re: raising fan height
It will cool just fine if you add a shroud.
|
01-15-2022, 02:20 AM | #6 |
Senior Member
Join Date: Sep 2016
Location: sydney australia
Posts: 1,025
|
Re: raising fan height
Sponsored Links (Register now to hide all advertisements)
|
01-15-2022, 05:05 AM | #7 |
Senior Member
Join Date: May 2010
Location: East Hartford, Ct
Posts: 5,898
|
Re: raising fan height
A properly designed shroud will allow air to be pulled thru almost all of the core.
No matter where the fan is located. Even if you center the fan to the core the four corners out of the radius of the fan will have static air flow without a shroud.
__________________
DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES |
01-15-2022, 10:44 AM | #8 | |
Senior Member
Join Date: May 2010
Location: Oshkosh, Wi
Posts: 4,509
|
Re: raising fan height
Quote:
|
|
01-15-2022, 11:01 AM | #9 |
BANNED
Join Date: May 2010
Posts: 3,019
|
Re: raising fan height
In my case...'41 p'up....big inch motor stock cooling system....Jack talked me out of an
electric fan and suggested a shroud. I'm glad he did, I used a Walker shroud and voila temp went from 200+ to a steady 170/175. Someone else is selling these things now. I did the rag test...prior to the shroud a rag would not 'stick' to the rad with the motor spinning the fan...after the shroud the rag held on for dear life. Charlie ny |
01-16-2022, 01:13 AM | #10 |
Senior Member
Join Date: Sep 2016
Location: sydney australia
Posts: 1,025
|
Re: raising fan height
ok charlie ny but whats the fan style and number of blades ????
|
01-16-2022, 07:19 AM | #11 |
BANNED
Join Date: May 2010
Posts: 3,019
|
Re: raising fan height
5 blade genuine '39-'40 FORD issue. The Ford rad in my '41 has a high tank with the cap in the middle on top.
Charlie ny |
01-16-2022, 07:52 AM | #12 |
Senior Member
Join Date: May 2010
Location: shirley ny
Posts: 992
|
Re: raising fan height
|
01-16-2022, 08:57 AM | #13 |
Senior Member
Join Date: May 2010
Location: East Hartford, Ct
Posts: 5,898
|
Re: raising fan height
Fabricated a fan shroud to fit my '51 Merc. using the original 4 blade fan and it worked as expected, pulling air thru 100% of the core and maintaining acceptable temp. at idle.
To me it seems that the number of blades is less important when using a shroud.
__________________
DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES |
01-16-2022, 04:22 PM | #14 |
Senior Member
Join Date: Sep 2016
Location: sydney australia
Posts: 1,025
|
Re: raising fan height
no dought all the above fans work with a shroud as they are all single diameter as stated the original fan on the merc is a duel diameter 17" and 16" 3 off each this was to break the harmonic drone associated with even number of same sized blades and you lose any advantage from the shroud due to the excessive tip clearance caused by the smaller dia blades so back to the original question WHATS INVOLED IN RAISING THE FAN AND WETHER IT CAN BE DONE
|
01-16-2022, 04:53 PM | #15 |
Senior Member
Join Date: Apr 2014
Location: Minnesota
Posts: 1,160
|
Re: raising fan height
Not sure if this is what your looking for but this is the setup I used in my'38 1/2T with a 59a. My motor came with the double pulley crank pulley so after I located the fan assembly it was a bolt on deal. There is some up and down adjustability.
|
01-16-2022, 05:49 PM | #16 |
Senior Member
Join Date: Sep 2016
Location: sydney australia
Posts: 1,025
|
Re: raising fan height
that's basically where i want to wind up could you take some measurements for me 1 crank centre to fan centre height and 2 the distance from the front of the fan to the front of the intake where the generator mount sits as the mercury dosnt have a lot of room forward
|
01-16-2022, 06:11 PM | #17 | |
Senior Member
Join Date: May 2010
Location: East Hartford, Ct
Posts: 5,898
|
Re: raising fan height
Quote:
The stock fan on my '51 Merc. is not a "duel" or dual diameter. Nor is it 17" or 16". It is 18 ¼" diameter.
__________________
DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES |
|
01-16-2022, 07:42 PM | #18 | |
Senior Member
Join Date: Apr 2014
Location: Minnesota
Posts: 1,160
|
Re: raising fan height
Quote:
The front of the fan blade is 6 3/4" to the front of the intake flange's flat mounting surface. |
|
01-16-2022, 08:47 PM | #19 |
Senior Member
Join Date: Sep 2016
Location: sydney australia
Posts: 1,025
|
Re: raising fan height
Thanks 38bill now i can do some measuring and see if its even worthwhile to start down this path The other question i have read on here that some of our fellow barners have fitted taller radiators from bus or trucks but despite searching cant find the posts nor any mention of which truck/ bus rad was used or whether there was a tropical/desert core /rad offered
|
01-16-2022, 10:15 PM | #20 |
Senior Member
Join Date: May 2010
Location: Oshkosh, Wi
Posts: 4,509
|
Re: raising fan height
The 39 Merc uses the same fan as a 39 DeLuxe Ford - 16 3/4" 6 blade.
|
Thread Tools | |
Display Modes | |
|
|
Sponsored Links (Register now to hide all advertisements) |
|