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Conference terri::cars_uk

Title:	Cars in the UK
Notice:	Please read new conference charter 1.70
Moderator:	COMICS::SHELLEYELD

Created:	Sun Mar 06 1994
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	2584
Total number of notes:	63384

1137.0. "MAESTRO 'PINKING'" by PEKING::GERRYT () Fri Jul 06 1990 15:00

    I have a 1986 Maestro City which seems to 'pink' when the engine
    is under stress, and I get a lot of 'run-on' when I turn the ignition
    off.
    
    Is this problem easy to cure, as it has electronic ignition, and
    I have fitted new plugs, and checked the gaps etc.
    Someone mentioned to me that there were small springs inside the
    distributor that slacken after time ?
    Is this true, and if so, can they be easily adjusted ?
    
    Tim

T.R	Title	User	Personal Name	Date	Lines
1137.1	****?	AIMTEC::BURDEN_D	No! Your other right!	`Fri Jul 06 1990 18:16`	4
	A simple test would be to put in higher octane fuel and see if the condition disappears. Dave
1137.2	i use 4 star	PEKING::GERRYT		`Mon Jul 09 1990 13:35`	6
	Dave, I use 4* as it is. Would it be worthwhile checking the tappets ? Cheers
1137.4		ANNECY::MATTHEWS	M+M Enterprises. Thats the CATCH	`Tue Jul 10 1990 16:02`	10
	Most likely is that the ignition is set too far advanced. The "spring" you are talking about could be for the automatic advance retard mechanism (if it has one). This/these can become weak and require replacement. Best solution: get the ignition timing and dwell angle checked. Mark
1137.5	Bug	STRIKR::LINDLEY	Strewth mate.....	`Tue Jul 10 1990 17:29`	8
	If you have the 1300cc 70bhp engine, they are renowned for this problem, there is not much you can do about the run-on - the pinking varies according to the make of fuel you use. When I had an MG Metro (same engine) I seem to remember that ESSO fuel was noticeably better at surpressing the pinking. John
1137.6	Complex simplicity.With wings!	REPAIR::ATKINS		`Thu Sep 24 1992 13:50`	18
	RE.3 >>Cures for pinking.1)Take the head off and give it a good cleaning.2)use Redex or some other proprietary decarbonizing compound. I've tried using Redex twice,the first time I left it in for half an hour,and the second time I left it in overnight.The pinking has reduced slightly,but I still get the "Chain rattling noise" between 2300-2600 rpm.Is it worth me using redex again? if so for how long?.Or can anyone suggest another decarbonizing compound! Thanks in advance Andy.... P.S. Is it easy to clean the cylinder head myself?
1137.7	OOOOoooppps	REPAIR::ATKINS		`Thu Sep 24 1992 13:51`	8
	RE last note. For those who don't know my many moanings I drive a 1987 Astra 1.6 SR not a Maestro. Andy...
1137.8	Just think you get to sit in an SR.	REPAIR::ATKINS		`Fri Oct 02 1992 09:31`	14
	Guys, Could I ask a small favor.Are there any of you knowledgable noters that work at Winnersh triangle,or Dec park? As I would like to borrow someone for a few minutes to listen to my "suspect pinking".I would take it to my local garage but it's full of youngsters who seem to think that at the first sign of a drop of fresh oil means a new head gasket. Anyone available one lunchtime for a few mo's. Thanks Andy.
1137.9	WLC start point	CHEFS::OSBORNEC		`Mon Oct 05 1992 11:28`	11
	Andy - Not knowledgeable, but in WLC ..... Familiar with pinking on BMC "B" series engines, & my wife's Pug 309. Call me on 1415 if u want to, Colin