Valve Spring Compressor and other tools

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edd_barker
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Valve Spring Compressor and other tools

Post by edd_barker »

Hi all,

About to start my first engine rebuild, I have most mechanics tools but I don't have a valve spring compressor. There's 101 kinds on fleaBay, can anyone recommend a style/design/brand?

Also if there are any other specialist tools I'll need for the strip-down/rebuild then a heads up would be great. I know I need a micrometer/vernier set for measuring bores etc. How much should an accurate set be?

Thanks,

Edd
bmcecosse
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Re: Valve Spring Compressor and other tools

Post by bmcecosse »

This - or something like it - is the type to get.
http://www.ebay.co.uk/itm/Draper-Valve- ... 20d15e7418
You should also have a torque wrench (although I managed just fine without one for many many years...) . Tool to measure bores is very specialised - best to just judge the wear with a finger nail - and if worrysome - take it to a rebore expert.
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MarkyB
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Re: Valve Spring Compressor and other tools

Post by MarkyB »

Your fingernail will do to measure the bore, if it will catch in the ridge it needs a rebore.

"Once you break something you will see how it was put together"
edd_barker
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Re: Valve Spring Compressor and other tools

Post by edd_barker »

Great thanks for the info. Was intending to re-bore with new pistons anyway so I have an 'as-new' engine.

Already have a torque wrench, dad raced midgets in the 70s although his interest in getting covered in oil seems to have waned a little with age. Came in handy when I was stripping wheel studs like they grow on trees, didn't realise what a low torque they need.

So no need for micrometer or anything like that?

Many thanks

Edd
mike.perry
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Re: Valve Spring Compressor and other tools

Post by mike.perry »

You will also need a piston ring compressor
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bmcecosse
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Re: Valve Spring Compressor and other tools

Post by bmcecosse »

Dad MUST have had a valve spring compressor...... Micrometer - handy to have but not absolutely essential. Vernier caliper will do the trick if used carefully. Feeler gauges will be useful..... And an A/F socket set.....
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chesney
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Re: Valve Spring Compressor and other tools

Post by chesney »

I recently bought a valve sprang compressor recommended for A series engines, and it was too short for my 950 head :x although it seemed able to do the 1100 valves (just!).
I hunted round the workshop and found a lovely 'fully adjustable' compressor that works wonderfully, the same used by my Dad for his Mini(s) etc nearly 30 years ago..
JOWETTJAVELIN
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Re: Valve Spring Compressor and other tools

Post by JOWETTJAVELIN »

An old Sykes Pickavant would be the valve spring compressor to go for, ideally not paying more than a fiver.

I have always used an old hand-operated pillar drill to good effect, with a small block of wood cut to fit in the combustion chambers so jamming the valves.
johngrigg
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Re: Valve Spring Compressor and other tools

Post by johngrigg »

Interesting method, but how do you get at the collets ? Some sort of adaptor between the drill and the valve? Cheers JohnG
JOWETTJAVELIN
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Re: Valve Spring Compressor and other tools

Post by JOWETTJAVELIN »

An old 3-inch wood screw with a largish head in the chuck pushes the valve spring down so I can get at the collets with a pair of pliers.

N.B. Edited to read 'pushes valve spring down'. I know what I mean! :roll: :lol:
Last edited by JOWETTJAVELIN on Sun Apr 14, 2013 6:04 pm, edited 1 time in total.
katy
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Re: Valve Spring Compressor and other tools

Post by katy »

How does that work?
You say you use a block of wood to jam the valve, then you're pushing the stem down with the pillar drill.
You need to push the spring down, not the valve.
Talk slow, think fast!
JOWETTJAVELIN
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Re: Valve Spring Compressor and other tools

Post by JOWETTJAVELIN »

I will upload pictures. Well spotted, Katy - I meant to say spring.
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