Date: Tue, 14 Feb 2006 19:55:39 -0600
Reply-To: Max Wellhouse <maxjoyce@IPA.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Max Wellhouse <maxjoyce@IPA.NET>
Subject: Re: compression testing... on the bench
In-Reply-To: <02bb01c631cd$6d844700$647ba8c0@MAIN>
Content-Type: text/plain; charset="us-ascii"; format=flowed
I guess I was thinking that if there's 300+ ft. lbs of torque on that
nut/bolt, that the engine might spin before the bolt did, especially
if the pressure were turned down a bit.
Max
At 07:16 PM 2/14/2006, Robert Fisher wrote:
>I'm trying to remember if this is one of those engines on which the pulley
>nut (bolt?) is reverse threaded to the rotation- it might come off pretty
>quick if that's the case. I had mine pop loose as I was commencing to
>turning the engine to set the valves- this was on a stand, and I think I
>hadn't worked out the proper direction at that point. It was also in the
>middle of the night on no sleep, which is probably why I was having a
>problem and don't remember much of it clearly
>
>I was thinking that if you had it on a bench you could maybe rig something
>to the flywheel and get some quick turns out of it that way. Too bad 'ol
>Goff isn't posting anymore, he could tell us all about cranking his Model T
>as a young man.
>
>Cya,
>Robert
>
>----- Original Message -----
>From: "Max Wellhouse" <maxjoyce@IPA.NET>
>To: <vanagon@GERRY.VANAGON.COM>
>Sent: Tuesday, February 14, 2006 4:35 PM
>Subject: Re: compression testing... on the bench
>
>
>>Any body tried hooking up an impact gun to the crank pulley and
>>"gently" spinning the motor that way/ Bellhousings and starters and
>>batteries are such a hassle!!!
>>
>>DM&FS
>>
>>At 02:34 AM 2/14/2006, Al and Sue Brase wrote:
>>>I've got a 36hp on the stand right now, and since I have the crank and
>>>nut from my 56 pickup, I figured I'd try a compression test with the
>>>hand crank. It is hard to get consistent results when cranking by hand.
>>>So, no, not really possible to check compression with meaningful results.
>>>Al Brase
>>>
>>>Tabe Johnson wrote:
>>>
>>>>It's pretty hard to turn an engine over by hand fast
>>>>enough to get a realistic compression reading. I have
>>>>done the bench compression. It worked fine. I got a
>>>>spare starter & bell housing, bolted it up, got out
>>>>the spare battery, and cranked away happily. I
>>>>was seriously considering how to mount a carb on the
>>>>engine to get it running until I realized I'd need the
>>>>computer for spark control. Then I gave up.
>>>>
>>>>tabe johnson/87 westy
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>Subject: Re: compression testing... on the bench
>>>>>
>>>>>Why wouldn't you just turn it by hand?
>>>>>
>>>>>Cya,
>>>>>Robert
>>>>>
>>>>>----- Original Message -----
>>>>>From: "Matthew" <mpteleski@YAHOO.COM>
>>>>>To: <vanagon@GERRY.VANAGON.COM>
>>>>>Sent: Monday, February 13, 2006 3:15 PM
>>>>>Subject: compression testing... on the bench
>>>>>
>>>>>
>>>>>folks, i have a wasserboxer long block NOT IN A CAR
>>>>>which i'd like to check its compression. Has anybody
>>>>>bolted a bellhousing and starter to a longblock on
>>>>>their workbench and tested the compression? (i know it
>>>>>is a cold test, but it will give me an idea of the
>>>>>quality of it, etc)
>>>>>
>>>>>thanks
>>>>>matthew
>>>>
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