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Author Topic: Spreader of what ?  (Read 2617 times)

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Offline rustyric

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Spreader of what ?
« on: May 01, 2018, 04:42:45 PM »
This tool is obviously designed to spread/stretch something open but what ? Its unbranded.



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Offline Lostmind

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Re: Spreader of what ?
« Reply #1 on: May 01, 2018, 06:37:58 PM »
valve spring compressor is my guess , for small engine L heads. Lawn mowers , tractors
« Last Edit: May 02, 2018, 09:04:10 AM by Lostmind »
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Offline oldgoaly

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Re: Spreader of what ?
« Reply #2 on: May 01, 2018, 07:02:13 PM »
spring compressor for a flat head or side valve engine
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Offline turnnut

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Re: Spreader of what ?
« Reply #3 on: May 01, 2018, 08:20:48 PM »
 if you back off the wing nut, does it close together ?

  maybe a valve lifter so you can remove the keepers ??
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Offline pritch

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Re: Spreader of what ?
« Reply #4 on: May 01, 2018, 10:35:54 PM »
It certainly looks like a spring compressor of some kind, but if automotive could you do so with a wingnut?
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Offline Bill Houghton

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Re: Spreader of what ?
« Reply #5 on: May 02, 2018, 10:05:51 AM »
Quote from: pritch on May 01, 2018, 10:35:54 PM
It certainly looks like a spring compressor of some kind, but if automotive could you do so with a wingnut?
Oh, sure.  Valve springs are not as strong as their gauge suggests.  This is what the compressors I've seen look like:

This is the first one I've ever seen that's not formed sheet metal - that's one chunky item!
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Offline rustyric

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Re: Spreader of what ?
« Reply #6 on: May 02, 2018, 02:14:11 PM »
Side Valve - eh I used to own a BSA M21 motorbike with one of those, when it used to kick back when you started it almost broke your leg !!
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Offline EVILDR235

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Re: Spreader of what ?
« Reply #7 on: May 02, 2018, 03:08:40 PM »
I also say it's a valve spring compressor for a flathead / side valve engine. I have one out in the garage and the last time I used it was on a 264 CI Chrysler straight 6 engine in a Wagnermobile scooploader that was converted into a forklift. I had to convert a Chrysler passenger car engine to use in the forklift at work. Decided to lap the valves in while I had the head off. That type of spring compressor will not work on a Ford or Mercury flathead V8 engine. I enjoy working on old engines and dislike working om modern engines.

EvilDr235
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Offline Bill Houghton

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Re: Spreader of what ?
« Reply #8 on: May 02, 2018, 03:34:08 PM »
Quote from: rustyric on May 02, 2018, 02:14:11 PM
Side Valve - eh I used to own a BSA M21 motorbike with one of those, when it used to kick back when you started it almost broke your leg !!
That's interesting, because side valve motors are inherently mid-to-low-compression motors.  I hadn't realized BSA made side valve motors so late - until 1963!
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Offline Papaw

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Re: Spreader of what ?
« Reply #9 on: May 02, 2018, 06:41:59 PM »
Probably wasn't the compression, more likely timing was off.
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Offline Bill Houghton

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Re: Spreader of what ?
« Reply #10 on: May 02, 2018, 10:40:35 PM »
My son was over tonight, and suggests this may have been a spreader for a side-valve Cadillac V8, which required a rather specialized shape.
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Offline rustyric

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Re: Spreader of what ?
« Reply #11 on: May 04, 2018, 08:34:46 AM »
Still in production (BSA M21) no wonder the british motorcycle industry failed.
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Offline Bill Houghton

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Re: Spreader of what ?
« Reply #12 on: May 04, 2018, 10:11:52 AM »
Quote from: rustyric on May 04, 2018, 08:34:46 AM
Still in production (BSA M21) no wonder the british motorcycle industry failed.
Harley produced the side-valve/flathead 45 engine from 1929 to 1973 (21 raging horsepower from roughly 750 cc's) - yet Harley's still in business.  That BSA motor's kind of intriguing, but I wouldn't go out of my way to own one.
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