What's the difference between the S-8663-A wrench and the S-8663-B?
Thanks!
Mike in Orygun
Thanks!
Mike in Orygun
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Nothing. The S-8663 was made 1950 - 53 the S-8663-A was made from 1955 - 65 and the S-8663-B were made in 1967. -
If anyone would like to buy one of these Snap-On offset head wrenches, send me a PMAlaskan A's
Antique Auto Mushers of Alaska
Model A Ford Club of America
Model A Restorers Club
Antique Automobile Club of America
Mullins Owners ClubComment
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Thanks! Still re-torquing after replacing the head gasket. I've been removing the dissy each time, which works and is ok, but it'd be nice not to have to.Comment
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I use a crows foot with a 6” extension and a torque wrench. Never saw the need for the wrench pictured.Comment
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image000000.jpg We used to use the crow's foot method, then we hit on this:
Take a spare socket, cut it down with a cutoff wheel, and weld it to a 3" extension, Voila! Perfect tool to torque all the head nuts, and even makes it easy to get at the 3 by the firewall.
Never remove another distributerComment
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Just as a matter of precision, when using the crows foot or the created offset the torque at the nut is not the same as what is set on the wrench.Comment
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Agree. The difference in torque from the wrench reading should be negligible. Use the crow's foot on all the nuts for an equal value on all 14 nutsComment
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I try to have an inventive mind until it comes to a snap-on wrench that I don't have...Comment
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If the crows foot is at 90° to the torque wrench the torque on the nut will be correct.Originally posted by Mike V. Florida View PostComment
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I respectfully disagree with "katy's" conclusion. Mike V. Florida's comment is spot on.
With the Snap-On offset head nut wrench mentioned in the first post, the square drive of the torque wrench is directly in line with the head nut being torqued.
With a crows foot the square drive of the torque wrench is set off to the side of the head nut even though the crows foot is at 90 degrees to the torque wrench. Since the torque drive is not directly over the head nut, the crows foot in effect adds length to the torque wrench changing the torque value due to the added leverage.
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Update: First, Thanks to all who responded to my original question. I've since snagged one on Ebay. Works great! Sure, there are other ways to tighten head nuts, and it's not a tool a guy would use every day, but then again, ya just can't have too many tools, right? For anybody that's interested, there are a couple up for bids on Ebay. I'm not associated with either of these sellers:
https://www.ebay.com/sch/i.html?_fro...-8663&_sacat=0Comment
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I have not looked at this thread since it started.
In fact, what Katy said in post #10 is true.
There is only an added lever effect if the tool is used at 180° to the nut.
Having said all that, since we are only talking about 1/2" distance, the extra torque applied at 180° is essentially meaningless, and the error comes in at 2.29 ft-lbs for an intended torque value of
55 ft-lbsLast edited by tbirdtbird; 01-10-2018, 11:16 PM.Comment
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See post #3
I still have several of these wrenches. If you want to have one of your very own, send me a PMAlaskan A's
Antique Auto Mushers of Alaska
Model A Ford Club of America
Model A Restorers Club
Antique Automobile Club of America
Mullins Owners ClubComment
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This is my collection of "under the distributor head nut" torque tools. DSCN4542.JPG 1-Bonney 2617, 2-MAC S 8S, 3-Snapon S8663B, 4-KR Wilson 6050-N, 5-Proto 6435, 6-Snapon S8677
All work just fine.Comment
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Geez guys, tight is tight. Set one with a torque wrench, then see how tight it is with a box wrench and then do it to the one by the dist. It ain't rocket science here. What did they do during the depression and after(shadetree mechanics)??
Paul in wet CTComment
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