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 Post subject: Valve spring compressor
PostPosted: Sat Dec 29, 2007 6:18 pm 
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1275cc
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Location: Adelaide
Hi all,

Just wondering what kind of compressor people use. I welded one up and it turned out to be a piece of junk. So should I just hit up superjunk or lash out and get a good one?

Cheers

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PostPosted: Sat Dec 29, 2007 6:25 pm 
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Get a fairly good one - for a couple of reasons.

Firstly, they are almost never designed for a mini head and you usually need to fit a socket over the valve head to compress the spring completely and it takes a bit of force.

Secondly, they are your fingers slipping in collets and the like - the last thing you want is a cheap one to give up the ghost or slip at a crucial moment. You would lose the top of a finger in the blink of an eye.

Mike


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 Post subject:
PostPosted: Sat Dec 29, 2007 6:29 pm 
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thanks Mike,

While dicking around I had a couple of collets ping off at a million miles and hour.


I came across this one (scroll down to the bottom) It looks simple and it looks strong too. All I have to do is cut up a socket and tak it onto the G clamp.

http://www.thisoldtractor.com/gtbender/ ... ressor.htm

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Yep Mokes are ugly - but Moke owners know that. Its like ugly women - she may be a dog but you know your going to get some :wink:


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 Post subject:
PostPosted: Sat Dec 29, 2007 6:36 pm 
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Joined: Thu Nov 01, 2007 7:32 pm
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u made your own compressor :?: or am i readin somethin els


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 Post subject:
PostPosted: Sat Dec 29, 2007 7:01 pm 
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Location: Under the bonnet son!
I got the one from supercrap some time back as the number of times I rebuild a head didn't justify the expense.

I had (as I have done in the past) full intentions of marching back in with the tool and the receipt if the tool wasn't up to the task at hand.

In the end, the supercrap one (which is the same as the Bursons one but a little cheaper) worked fine enough. The handle could be longer, but it's all down to the adjustment. Ands no socket was needed luckily either.

It's onto it's fourth head, as well as having rebuilt an old Astron engined Magna head a couple of weeks ago.

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 Post subject:
PostPosted: Sat Dec 29, 2007 7:34 pm 
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I made one... worked for disassembly, no good for assembly :(

(but my mate gave me one after that!)

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 Post subject:
PostPosted: Sat Dec 29, 2007 8:07 pm 
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Mick wrote:

In the end, the supercrap one (which is the same as the Bursons one but a little cheaper) worked fine enough. The handle could be longer, but it's all down to the adjustment. Ands no socket was needed luckily either.



If its the one made in Taiwan, its not worth two knobs of goatsh*t in my opinion. Needs another foot on the lever arm. Who ever designed it never passed elementary physics :evil:

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 Post subject:
PostPosted: Sat Dec 29, 2007 8:18 pm 
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Location: Under the bonnet son!
Yep, I hear ya. It doesn't lend itself to adding an extension bar to the handle either, but it builds yer forearm muscles up at least when disassembling. 8)

When removing the collets for the first time in years it's a bit tough. I worked out that if you tapped the valve caps with a copper drift and hammer or similar it broke the sticky crap that held it on. Once that was gone it was much easier.

Putting it back together wasn't a problem however, it works fine.

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 Post subject:
PostPosted: Sat Dec 29, 2007 8:23 pm 
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Location: Sydney - strangely, I am glad of the sight of hills!!
if you have a drill press, just make something up to fit in that, and put a block under the valve when reassembling. You just use the downward motion of the drill head to compress the spring......I learned this from GR who happens to have a bank of drill presses, so dedicating one to be a valve compressor is not a problem for him :lol:

cheers
michael

ps no you don't turn the drill on :roll:

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 Post subject:
PostPosted: Sat Dec 29, 2007 8:37 pm 
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998cc
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i'm using this one
Image

made by Elora , and modyfied by me. yes, ist a 1/2" ID, 40cm long steel gas pipe welded on as handle extension, the factory handle was 10cm "long" and 4mm thick, covered with cheap plastic, very user friendly .....

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 Post subject:
PostPosted: Sat Dec 29, 2007 8:42 pm 
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KLAS wrote:
i'm using this one
Image

made by Elora , and modyfied by me. yes, ist a 1/2" ID, 40cm long steel gas pipe welded on as handle extension, the factory handle was 10cm "long" and 4mm thick, covered with cheap plastic, very user friendly .....

we use one very similar to this one... just be careful when using it a lot the tangs start to open up(maybe we use it a bit more than most people though)

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 Post subject:
PostPosted: Sat Dec 29, 2007 8:57 pm 
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I have this one. It works like it was made for a Mini and I've loaned it out to club members a few times. About $50, but worth it in my opinion to have a tool that you don't fumble with and end up breaking something.

Image

http://www.toolsource.com/valve-spring-compressor-overhead-limited-p-70508.html?osCsid=vdltb8hqsm1n9rdr1gkhpqd067

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 Post subject:
PostPosted: Sat Dec 29, 2007 8:57 pm 
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brickworx wrote:
KLAS wrote:
i'm using this one
Image


Looks similar, the crap one I have here has a wingnut and thread to adjust the width of the tangs to the size of the valve cap. I could really do with a piece of pipe over the end like Klas's.

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 Post subject:
PostPosted: Sat Dec 29, 2007 9:22 pm 
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998cc
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Location: Hamburg, Germany
Mick wrote:
has a wingnut and thread to adjust the width of the tangs to the size of the valve cap

yes, i fitted a small aluminium tube to have a fixed size
Image

brickworx wrote:
we use one very similar to this one... just be careful when using it a lot the tangs start to open up(maybe we use it a bit more than most people though)

i use it a lot, too. thats why i bought a "german quality tool". but i even had to mod it to pull straight and sometime it still pulls to one side or the other

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 Post subject:
PostPosted: Sat Dec 29, 2007 9:33 pm 
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Joined: Thu Dec 28, 2006 10:39 pm
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Location: Perth, WA
How's about a pneumatic one:

http://www.youtube.com/watch?v=kbmoMiYIHdg


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