Comp test showed 170 on all 4 pots, head is K-lined, plugs+leads are good, im gonna say valve stem seal... gah! head off.....
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| Author: | mattsmadmini [ Wed Oct 02, 2013 10:13 am ] |
| Post subject: | oily plug |
Annoyance strikes again! Cleaning up spark plugs, notice plug number 2 covered in oil, all the others are dry and a bit sooty... black oil indicitive of busted stem seal or...? What else could be causing it? Cheers, Matt |
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| Author: | drmini in aust [ Wed Oct 02, 2013 10:49 am ] |
| Post subject: | Re: oily plug |
Bad rings, worn valve guide, crook plug lead, busted or hardened valve stem seal (if fitted- most 202 heads didn't have em). |
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| Author: | mattsmadmini [ Wed Oct 02, 2013 3:11 pm ] |
| Post subject: | Re: oily plug |
Comp test showed 170 on all 4 pots, head is K-lined, plugs+leads are good, im gonna say valve stem seal... gah! head off.....
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| Author: | Lillee [ Wed Oct 02, 2013 3:50 pm ] |
| Post subject: | Re: oily plug |
Plug leads and cap, check that first. Check plug gap. Swap dirty plug to another cylinder and run a clean plug from that cylinder on this one and see if it repeats. Then pull head off if still oily Oil control ring and compression rings two different things, maybe one dodgy oil ring? I remember having to align the ring open ends to oposing sides of the piston, was this done? Just a thought |
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