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My latest woe is, I need to know the dimensions for the square key for the harmonic balancer. 59, 352
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1958 Hardtop
#8452 TBird Registry
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Well, I talked to a friend at a motor shop, here in san antonio. Duffin Motors. He told me I could get keystock at a hardware store. So off I go with harmonic balancer in hand to Home Depot. Low and behold they had woodruff keys and the square keystock.
So I found out the harmonic balancer was 1/4". But I got back home and it looks like the crankshaft has 7/32" slot. Plus I was blessed with 2 different harmonic balancers. One has a flat plate the other has a thick weight on it. Plus the end of the harmonic balancer does not fit flush with crankshaft end. It sticks out about an inch. from crankshaft. My woe continues.Comment
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The above headbold.com/FE site shows ford FE crankshaft key 3/16 x 1-3/4 wk-5 $1.35Comment
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Anything I found says the key is 3/16".
Which damper came with the motor??1958 Hardtop
#8452 TBird Registry
http://tbird.info/registry/DataSheet...r~equals~8452)
photo: http://www.squarebirds.org/users/joh...d_June2009.jpg
history:
http://www.squarebirds.org/users/johng/OCC.htmComment
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both came with the car. Seems the person who had it before me found a car and took random parts and put in the trunk.There is a starter, master cylinder, egh. manifolds, gas tank straps, gas lines, even a serpentine belt tension pulley. 5 coffee cans of bolts, nuts, things I have no clue. Just to make things interesting, I think he threw in some of those pressboard cabinets hardware.Comment
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Ok, according to t bird sanctuary parts catalog and t bird headquarters catalog. part #358963-S is the key I need. So I googled the part number and it did come up with the answer. it came up with http://fordification.net/partnos/pul...ankshaftFE.htm
At the bottom is the part number and it shows to cross fit 73/76 Ford truck (LL-2) key (damper to crankshaft) - 1/4" x 3/4"Comment
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You seem to have two issues: 1) get a key that does the job. Either order one or trial and error with bar stock from the hardware store. You already found 1/4" doesn't work, right? 2) the damper has timing marks on it that have to work with your motor and marker (pointer). When cylinder #1 is at TDC then your mark and pointer should be consistent with that. I have no idea if the marking system remained constant over the FE life span.
That said, you might line them up and see how the timing marks do compare (with the key slots aligned).
In Part 1 of the shop manual, Fig. 28 provides a very good exploded view of all the parts of the crankshaft and there is alot of good information on both removal and installation of the balancer.Last edited by JohnG; November 29, 2010, 10:42 PM.1958 Hardtop
#8452 TBird Registry
http://tbird.info/registry/DataSheet...r~equals~8452)
photo: http://www.squarebirds.org/users/joh...d_June2009.jpg
history:
http://www.squarebirds.org/users/johng/OCC.htmComment
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Ok, I sat down with the thunderbird bible, a hot cup of coffee, and a nice cuban cigar. I have figured out the right damper, and the the right key. The only problem left is why the damper will not fit flush to the end of the crankshaft. But all these things just make for a better story when someone will ask me about the restoring. Gotta love it!Comment
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Was the key 3/16 " ?
Did you put the damper on, torqued to spec and it's still sticking out some?1958 Hardtop
#8452 TBird Registry
http://tbird.info/registry/DataSheet...r~equals~8452)
photo: http://www.squarebirds.org/users/joh...d_June2009.jpg
history:
http://www.squarebirds.org/users/johng/OCC.htmComment
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The key is 1/4" the crank had some scars, a little file works great. But the damper still not flush.Comment
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I sat down too. Here's what the books say about both crank keys (timing sprocket and damper pulley). Looks like you need a 1/4" x 3/4" for the damper pulley. That's a very common part.Member, Sons of the American Revolution
CLICK HERE to see my custom hydraulic roller 390 FE build.
"We've got to pause and ask ourselves: How much clean air do we need?"
--Lee Iacocca
From: Royal Oak, MichiganComment
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Are you trying to fit it with or without the spacer on. Is the spacer all the way into the timing cover. The tapered end of the spacer should be completely through the timing cover.John Pizzi - Squarebirds Administrator
Thunderbird Registry #36223
jopizz@squarebirds.org 856-779-9695
https://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htmComment
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Picture of your 352 damper pulley assembly and crankshaft:
CLICK HERE to see my custom hydraulic roller 390 FE build.
"We've got to pause and ask ourselves: How much clean air do we need?"
--Lee Iacocca
From: Royal Oak, MichiganComment
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I have put the spacer in smaller diam. first and it goes through the seal. I twist till it goes on the woodruff key that holds the lower timing chain gear. It bottoms out. so I know its not going any further. The damper I am using is the correct damper. I talked this morning to my friend at the motor rebuilding shop. He said that I should not be concerned the damper is not flush to the end of the crank. Just make sure there is no play with damper and the spacer. He told me Ford was bad about that time to use 3 different cranks.Comment
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