Allen, Rob, et al,
My fan showed a clean break at the base of one blade; all the other blades
were OK with no sign of cracks. When shopping for replacements, I noted that
all modern fans are certified for a certain RPM level - I have no idea what
the original fan was rated for.
If you don't wing the motor too much, you may never have a problem.
I didn't check junkyards but it's pretty likely that some later GM fan from
a V8 or maybe a 230 or 250 I6 would probably fit, and look more like the
original. None of the flex fans I tried would work on my truck - too much
pitch, the blades hit the PS pump. Also I didn't like the razor sharp edges
on the stainless blades. What I ended up using was a 6-blade fan with rigid
alloy blades (had to look around a few FLAPS to find one without blue or red
anodized blades). I think it carries a 8000 RPM rating.
I have only had two component failures on my GMC 302 in 40K plus miles. A
pressure plate explosion, and the fan blade incident. Both were original 45
year old parts, and both happened at about 5000 RPM. I have also had
problems with the damper pulley retaining bolt and flywheel bolts working
loose (both fixed by using epoxy instead of Loctite). Note that these are
all reciprocating components. You can draw your own conclusions - mine were
that, given the way I like to drive, the original pieces were an accident
waiting to happen. Your results may vary.
Jack / Winter Park FL
-----Original Message-----
From: Allen L. Jones <ALJ@hartcrowser.com>
To: oletrucks@autox.team.net <oletrucks@autox.team.net>
Date: Thursday, March 04, 1999 11:16 AM
Subject: Re: [oletrucks] 235 Fan Wanted
>But do you think if I had the stock fan magnifluxed and it checked out,
that it would be ok? I like the stock look. Are there any replacement fans
that are "close" to stock out there?
>
>>>> "jack halton" <safesix@worldnet.att.net> 03/03/99 06:24PM >>>
>I related this to the list a while back. The original stamped steel fan
>should be tossed and replaced with a modern fan. Mine lost a blade and took
>out the radiator, power steering pump and punched a hole in the hood. A
>6-blade alloy fan cost about 30 bucks and could have prevented this. Engine
>runs cooler too.
>
>Jack / Winter Park FL
>-----Original Message-----
>From: Hudson29@aol.com <Hudson29@aol.com>
>To: oletrucks@autox.team.net <oletrucks@autox.team.net>
>Date: Wednesday, March 03, 1999 6:19 PM
>Subject: [oletrucks] 235 Fan Wanted
>
>
>> I need a high speed fan as fitted to the 55-62 (or thereabouts) 235s for
>my
>>new engine swap project. Are there other sorts of fans that work well (and
>are
>>readily available) when swapping a later 235 into a 51 AD pickup? Anybody
>got
>>something cool they would like to sell?
>>
>>Paul O'Neil,
>>1951 Chevrolet 3600 Pickup Project, See it at:
>>The Poor Man's Advanced Design Tech Tips Page
>>http://home.earthlink.net/~conntest47/
>>Fullerton, California USA
>>Hudson29@aol.com
>>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>>
>
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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