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Post by thejinx on Oct 31, 2008 15:27:30 GMT 1
as you know i have been having starting porblems, which i put down to spark gap on points. i had the plugs out this morning (they are new having done less than 100 miles). i find them full of oil, now i know this can have issues with sparking but more importantly i have read the book, and excess oil on the plugs can mean piston rings etc on thier way out.
is this a big job and am i right
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exuptoy
1330cc
1980 Rebuild project and 1969 Elf.
Posts: 924
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Post by exuptoy on Oct 31, 2008 15:55:03 GMT 1
Are you sure this is oil. If it is then you're correct it is probably the rings. If it isn't oil and they are just black then it could be excess fuel and the carb needs setting up. Sorry can't be more help.
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ljonez
turbo
Built not bought
Posts: 3,734
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Post by ljonez on Oct 31, 2008 15:58:08 GMT 1
as said if it is oil. its total strip down and rebuild with a re-bore and new pistons I'm afraid. you used to be able to buy over-sized rings that would take up any ware in the bores, I'm not sure if their still available ? even if you can get them i wouldn't bother as its the same amount of stripping etc to change them. so you may as well go for the re bore etc and at least then you know its sorted properly. the re-bore is relatively cheap, its the pistons which cost the most  also allot of it comes down to how much you can do yourself? could well end up cheaper to buy a new engine. |
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Post by biker on Oct 31, 2008 21:55:05 GMT 1
i had a similar problem the other day and numer 2+3 plugs were covered in oil and thats what ithough it was rings etc but it ended up it was the head gasket so could be worth checking that first you,d have to take it off to do the job but if it is the problem at least the engine wont have to come out  |
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Post by thejinx on Nov 1, 2008 11:38:32 GMT 1
well i think,  and hope that it was the carb set up wrong. it was running weak. lets waight and see.  |
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exuptoy
1330cc
1980 Rebuild project and 1969 Elf.
Posts: 924
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Post by exuptoy on Nov 1, 2008 13:48:20 GMT 1
If it was running weak then the plugs would be burning white not black. Sorry m8.
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Post by thejinx on Nov 1, 2008 18:20:38 GMT 1
damn back to the drawing board.
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Post by miniandmodels on Nov 1, 2008 21:34:04 GMT 1
Also check your valve stem oil seals, this is the most common cause of oil on plugs. The mini origianlly only has 4 fitted but it is worth fitting them to all 8 valves.
A cheap fix but the head must be removed to do it so you may as well fix a new head gasket and then give it a try.
Whilst the head is off, its also possible to have a rough glance at the ring end gap and check the bore condition. If the gap is large and the bore is scored then its not worth meesing with.
Jamie......
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and hope that it was the carb set up wrong. it was running weak. lets waight and see. 
