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Author compression testers
Steve
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Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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13th May 11 at 23:00   View Garage View User's Profile U2U Member Reply With Quote
does price really matter with these or is the technology so simple a cheap one would be as effective as one twice the price

point in question

http://cgi.ebay.co.uk/AUTOMOTIVE-COMPRESSION-TESTER-GAUGE-KIT-PETROL-ENGINE-/250689979901?pt=UK_Diagnostic_Tools_Equipment&hash=item3a5e4985fd

vs

http://cgi.ebay.co.uk/DRAPER-PETROL-ENGINE-CAR-CYLINDER-HEAD-COMPRESSION-TEST-/380171399898?pt=UK_Diagnostic_Tools_Equipment&hash=item5883fb32d
Jake
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Registered: 24th Jan 05
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13th May 11 at 23:01   View User's Profile U2U Member Reply With Quote
my draper one lasted 4 goes
Steve
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Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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13th May 11 at 23:02   View Garage View User's Profile U2U Member Reply With Quote
what then went pop?
Jake
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Registered: 24th Jan 05
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13th May 11 at 23:03   View User's Profile U2U Member Reply With Quote
it wouldnt hold any pressure so couldnt get a reading. i would have got a replacement if i had a reciept
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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13th May 11 at 23:11   View User's Profile U2U Member Reply With Quote
My draper 1 has been going strong for about 2 years.Even the packet it came in has aged well.

I once screwed it into my arse to see how much pressue i could fart.
gavin18787
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Registered: 22nd Feb 05
Location: Basildon, Essex
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13th May 11 at 23:37   View Garage View User's Profile U2U Member Reply With Quote
ive just got one from the motor factors does the job. Although Ive only ever used it once

Drives supercharged Tec with torque
Colin
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Registered: 4th Apr 02
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13th May 11 at 23:38   View User's Profile U2U Member Reply With Quote
I got one from Halfords for a few quid....done the job.
Steve
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Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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14th May 11 at 06:25   View Garage View User's Profile U2U Member Reply With Quote
oh yeah plus my trade discount
AlexW
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Registered: 25th Oct 08
Location: Essex
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14th May 11 at 07:18   View User's Profile U2U Member Reply With Quote
not really IMO, Snap on one here tends to fuckup sometimes.

Just get the cheapo one.
Steve
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Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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14th May 11 at 10:13   View Garage View User's Profile U2U Member Reply With Quote
how do you use these things? do they all have to be a certain value? or does it not matter what the numbers are as long as they are all similar to each other?
LeeM
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Registered: 26th Sep 05
Location: Liverpool
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14th May 11 at 10:24   View User's Profile U2U Member Reply With Quote
there will be a min/max value provided by the manufacturer i think. on autodata if yove got that
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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14th May 11 at 10:35   View User's Profile U2U Member Reply With Quote
Should be between 180-200 psi iirc.

If theyr is a difference of say 10-15psi across any 1 cylinder,then you have a problem.
Steve
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Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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14th May 11 at 11:35   View Garage View User's Profile U2U Member Reply With Quote
fucking piece of shit went and got one of those gunson ones from halfords and the gold connector is too wide to fit down my spark plug hole the thread is correct its just the rest of the metal moulding wont let it go far enough down

what a waste of time and money
Chris C
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Registered: 2nd Jan 05
Location: Hemel Hempstead
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14th May 11 at 11:38   View User's Profile U2U Member Reply With Quote
Something up with the puma ??
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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14th May 11 at 11:39   View User's Profile U2U Member Reply With Quote
Why are you using the gold connector you fool??Its a 14mm thread is it not??You shouldn't need that connector.
leon.
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Registered: 24th Jun 08
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14th May 11 at 11:41   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Corsa_Sport21


I once screwed it into my arse to see how much pressue i could fart.



what was the result?
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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14th May 11 at 11:44   View User's Profile U2U Member Reply With Quote
I don't know,i followed through.
leon.
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Registered: 24th Jun 08
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14th May 11 at 11:49   View User's Profile U2U Member Reply With Quote
you pushed to hard mate.
Steve
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Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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14th May 11 at 12:01   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Corsa_Sport21
Why are you using the gold connector you fool??Its a 14mm thread is it not??You shouldn't need that connector.
yes i know its 14mm the actual main gold shaft is to fat
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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14th May 11 at 12:12   View User's Profile U2U Member Reply With Quote
How can it be too thick??Isn't the socket size a 16mm??

Can you take a pic of a spark plug beside the gold part that dosn't fit down??

I have the Gunson 1 here and its pretty slim.
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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14th May 11 at 12:17   View User's Profile U2U Member Reply With Quote
I have the spark plug socket here in my hand aswell as the compression tester.The spark plug socket is alot thicker in diameter than the gold part of the compression tester.

I really can't see how it dosn't fit down.
Steve
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Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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14th May 11 at 12:35   View Garage View User's Profile U2U Member Reply With Quote
im not using the extra socket, the spark plug thread in the head is recessed about half an inch and its that recessed part the thing wont fit down.

im not a twat, it doesnt fit

[Edited on 14-05-2011 by Steve]
John
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Registered: 30th Jun 03
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14th May 11 at 12:40   View User's Profile U2U Member Reply With Quote
Have you broken another car Steve?
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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14th May 11 at 12:42   View User's Profile U2U Member Reply With Quote
I kinda get what your saying,but still can't see how its not working.

Have you tried screwing the thread in when it goes in as far as it does??

Need a picture drawing.
Steve
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Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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14th May 11 at 12:42   View Garage View User's Profile U2U Member Reply With Quote
nah just wanted to do it out of curiosity really good way to see if my engines healthy etc, especially before germany

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