This Wrench is the perfect tool to remove and install the fan belt on all Corvairs. I do not believe it is still available new but is available in an imported line.

Its improved 200% if you grind (flat) the end of the socket end, to eliminate the chamfer.

Eric P.
DeWitt, IA

I've had the import version in the past and would rather use the bent wrench! I've never owned/used the Snap-On version.

I carry the bent wrench version in every Corvair. I don't have enough money to put a Snap-On version in every Corvair....

Frank DuVal

Fredericksburg, VA

Frank DuVal Wrote:
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> I've had the import version in the past and would rather use the bent wrench! I've never owned/used the Snap-On version.
>
> I carry the bent wrench version in every Corvair. I don't have enough money to put a Snap-On version in every Corvair....


I have the MAC tools version. I bought it at a yardsale for less than a buck!
They do work very well.

Eric P.
DeWitt, IA

Having not had to put on a fan belt in 14 years, I don't even remember it being hard with whatever I had.

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I use an excellent RJTools bent wrench. Cheaper than a new Snap On as well. Rex Johnson makes these and is on here commenting regularly.

Darrin Hartzler
Catlett, VA

Northern Virginia Corvairs & Group Corvair

I just install a 3/8-24 (fine thread) coupler nut on the stud with the slot and use any standard 1/2"-9/16" offset box wrench. The lengthy coupler nut extends the nut out to where it's easier to access. No special deep offset wrench is needed for that.

Dave W. / Gilbert Arizona
65 Corsa 140/4
66 Corsa 140/4
66 Corsa 140/4 w/factory A/C
66 Corsa 455 Toro V8
65 Monza Convertible 110/4
66 Monza Convertible 140/4 A/C
65 Monza 4DR 140/PG w/factory A/C
65 Monza 4DR EJ20T/5

That's cheating!

Frank DuVal

Fredericksburg, VA

I believe Snap On calls that wrench a "box-ocket". There is no way I would put a tool like that into a grinder
or modify it in any way. I am in agreement with Richad1. Fan belts are not something I deal with often and I
do drive my Corvairs long distances. And I also am in agreement with AzDave. Long nuts are the way to go.

They call it a Flex head. It is still available:
[shop.snapon.com]
I keep them in all my running Corvairs but I've never had to use one on the road.

Joel
Northlake, TX
5 Ultravans, 141 Corvairs and counting...

Huh I just use a stubby open end wrench (half of a cheap wrench).

LesH Wrote:
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> Huh I just use a stubby open end wrench (half of a cheap wrench).


Yeah, all these years I have been using a regular combination wrench.
I didn't know it was supposed to be an issue.

-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
WA. state, 1 mile south of the Canadian border, I am not at the end of the world, but you can see it from here.

Going by the number of rounded edged nuts/bolts I found on fan belt idlers over the years, it certainly is an issue.

The bent wrench sold by Clark's (and supposedly made by the late John Moody of DC) and the other design sold by RJ Tools on here at the Fan Belt Toss (not that I ever went the 2500 miles to attend) work very well to keep the hardware from rounding.

Frank DuVal

Fredericksburg, VA

I never felt the need for a special wrench. I have often added a longer nut like is suggested. Buying tools is fun though - so I ordered one and threw it in the tool bag. Not lost many fan belts in my many years or daily driving Corvairs however it’s there for ‘next time’.

Frank DuVal Wrote:
-------------------------------------------------------
> Going by the number of rounded edged nuts/bolts I found on fan belt idlers over the years, it certainly is an issue.
>
> The bent wrench sold by Clark's (and supposedly made by the late John Moody of DC) and the other design sold by RJ Tools on here at the Fan Belt Toss (not that I ever went the 2500 miles to attend) work very well to keep the hardware from rounding.

John Moody was a great guy and I clearly recall him carrying a ring of those wrenches around at events for sale.
He usually made them from Craftsman wrenches, heated them up and bent them as needed. His nick name was Mr Bent Wrench if memory serves.

Since the mid 70's, I have used a Craftsman Flex Head socket/open end combination wrench like the Snap On version illustrated above but it isn't a perfect solution.
I am now thinking that AZ Dave's solution would work better for me these days.

1962 95 F.C. Van
1964 Greenbrier Deluxe
1965 Monza Coupe
1965 Monza Convertible
Westminster, Maryland

MID ENG enthusiast &
prior Kelmark owner.