The Marine Doctor - TMD Video Chronicle Comp and Spark check

YaBB Administrator YaBB Administrator Offline I love YaBB! Posts: 1 The Land of YaBB	TMD Video Chronicle Comp and Spark check 04/26/05 at 03:25:55 http://www.themarinedoctor.com/CandS.wmv Here is a link on how to do a compression and spark test. Unfortunately you cannot see the spark jump in the last segment of the video...but the it was Anyhow you well get the gyst of what I was trying to show you. TMD
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ljshein TMD's New People Offline 84 Bayliner Capri 18' w/Force 125 O/B Posts: 30 Woodstock, GA Gender:	Re: TMD Video Chronicle Comp and Spark check Reply #1 - 07/15/05 at 20:11:41 These videos are wonderful! Thank you for helping!!! If you ever want an apprentance, please let me know! Jeff
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DAdams TMD's New People Offline I love YaBB 1G - SP1! Posts: 1 Gender:	Re: TMD Video Chronicle Comp and Spark check Reply #2 - 07/17/05 at 19:40:30 All of these videos are great, they help bring the manuals to life. Thanks.
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BoatHeadJoe TMD's New People Offline Remember you are unique; just like everyone else. Posts: 11 Highland Lakes, Central Texas Gender:	Re: TMD Video Chronicle Comp and Spark check Reply #3 - 08/02/05 at 21:20:05 TMD's got some guns. Nice vid. BHJ
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BarryG TMD's New People Offline I love YaBB 1G - SP1! Posts: 12 x1\|Fenton, mo\|USA\|USA\|345\|164\| Gender:	Re: TMD Video Chronicle Comp and Spark check Reply #4 - 07/10/06 at 01:40:01 This is GREAT! Keep up the good work!
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Lowranger TMD's New People Offline I love YaBB 1G - SP1! Posts: 8	Re: TMD Video Chronicle Comp and Spark check Reply #5 - 07/27/06 at 18:56:53 Thanks Doc, Your Video Chronicles are da bomb. Like a Xmas present in July.
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Plainsman Full Member Offline 76 115 HP Mercury;78 Glastron SSV-176 Posts: 140 Scottsbluff, Nebraska Gender:	Re: TMD Video Chronicle Comp and Spark check Reply #6 - 02/04/07 at 22:31:51 Why is the bolt better than the plug for a spark test?
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Re: TMD Video Chronicle Comp and Spark check
Reply #7 - 02/04/07 at 23:12:59

It allows for a larger gap.
The spark plug does not require a high energy spark to jump outside the compression chamber.

We can mimic the compression chamber by having the spark jump a larger gap.

You could leave the spark plug in the boot if you wish and create the gap from the grounding threads to the block.
But.

Most people would see the spark inside the plug and assume its enough.

TMD

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proptwist Junior Member Offline I Love YaBB 2! Posts: 60	Re: TMD Video Chronicle Comp and Spark check Reply #8 - 05/15/08 at 05:41:18 Doc, Does having the engine hot or cold matter on the comp. test? One preferred over the other?
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The Marine Doctor YaBB Administrator Offline Posts: 19943 x1\|Sask\|Canada\| Gender:	Re: TMD Video Chronicle Comp and Spark check Reply #9 - 05/16/08 at 00:51:17 Not really...from what I have seen. Just be consistent when doing your readings. TMD
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