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Post by chassyh on Aug 16, 2017 13:19:35 GMT 1
Think I've got some valves sticking on my microvan, any advice of the best product to use to free them off?? Thanks in advance
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french crap fanatic
Apprentice
french car specialist based in dagenham east london
Posts: 3,355
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Post by french crap fanatic on Aug 16, 2017 13:25:27 GMT 1
Think I've got some valves sticking on my microvan, any advice of the best product to use to free them off?? Thanks in advance do go on! |
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Post by chippie on Aug 16, 2017 13:49:01 GMT 1
He means, what make/model/year/mileage, service history........
What makes you think its a sticking valve? Done a compression test?
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Post by Joepublic on Aug 16, 2017 13:58:02 GMT 1
It'll be some yank thing no ones heard of
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Deleted
Deleted Member
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Post by Deleted on Aug 16, 2017 18:15:09 GMT 1
Stick a Forte motor flush in the engine oil and give it a good run for about 50 miles, won't do it no harm if the inside of the engine is not slugged up.
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rpm
Apprentice
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Post by rpm on Aug 16, 2017 18:20:26 GMT 1
How have you diagnosed sticking valves?
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Post by chassyh on Aug 17, 2017 2:07:13 GMT 1
Thanks for all your posts, The obscure Italian thing that some may have heard of but more in the motor scooter line*, suddenly started a tapping noise when I was parking up, followed by a misfire. I was sufficiently alarmed to get some professional help. The diagnosis was No. 2 plug had decided to fire out its central electrode which was rattling about in the cylinder ! A new set of plugs later and all is fine.
*Piaggio Porter Van - all vehicles have feelings.
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rpm
Apprentice
Posts: 1,504
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Post by rpm on Aug 17, 2017 9:21:45 GMT 1
Good news as long as no damage caused.
Just proves, check basics 1st before going for complex diagnostics or guesses.
Better off detailing the symptoms to get a course of action and ideas.
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oli
Apprentice
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Post by oli on Aug 22, 2017 22:17:22 GMT 1
- all vehicles have feelings. I like that! :-) |
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Post by wheelnut on Aug 22, 2017 23:25:01 GMT 1
....The diagnosis was No. 2 plug had decided to fire out its central electrode which was rattling about in the cylinder !... Emmm... I don't mean to be patronising but I presume that is a layman's description. If the electrode really is rattling around in the cylinder your engine is fooked by now! |
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Post by upkeep on Aug 23, 2017 8:41:12 GMT 1
....The diagnosis was No. 2 plug had decided to fire out its central electrode which was rattling about in the cylinder !... Emmm... I don't mean to be patronising but I presume that is a layman's description. If the electrode really is rattling around in the cylinder your engine is fooked by now! No it's embedded in the piston crown waiting for the most inopportune moment to make an appearance. |
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Deleted
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Post by Deleted on Aug 23, 2017 10:10:33 GMT 1
Only seen it a couple of times, but I wonder if the OP is referring to the central electrode that has detached slide down to contact the ground electrode and is now shorting the plug causing the misfire? They don't normally fall into the cylinder if this occurs but will misfire.
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