Fungus
Part of things
Posts: 960
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Hi,
I just did a full service on the mk2f polo a mate has bought. It's a 1.3 with 82k on the clock.
The previous owner had been topping up the oil with wilko's mineral oil (what a clever chap) and it has no service history. It was still on it's original cambelt which was worrying.
I took off the rocker cover and was amazed at the amount of black sludgy-gunk that was pretty much everywhere. I cleaned off what I could from the inside of the rocker cover and put it all back on, so for now it's just got nice fresh oil and a new filter but still a lot of sludge.
What can I do about this? I've thought about a wash out with a paraffin gun and an immediate oil and filter change, as most types of engine flush are basically paraffin as far as I know.
Any ideas? The engine runs pretty well and doesn't had any bottom-end noise so it's definatly worth saving.
Thanks
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Run some cheap, budget semi synth oil through it. A few hundred miles, oil/filter change. Repeat.
I did this with my Golf and it's great. I didn't want to flush it so went down the cheap oil, frequent change route.
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1993 Mercedes-Benz 190e LE in Azzuro Blue.
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Run some cheap, budget semi synth oil through it. A few hundred miles, oil/filter change. Repeat. I did this with my Golf and it's great. I didn't want to flush it so went down the cheap oil, frequent change route. This ^^^ but TBH ten miles is enough, I tend to do this when I buy a new car/engine. You will surprised how black the 'new' oil will come out after 10 miles! |
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Vauxhall Nova Estate
Vauxhall Carlton V8
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93fxdl
Posted a lot
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Posts: 2,000
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Mar 15, 2014 12:01:24 GMT
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If you use an oil suitable for diesels they have a higher detergent loading, so will clean more than ordinary petrol specification oil
Ttfn Glenn
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taurus
Posted a lot
Posts: 1,084
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Mar 15, 2014 17:32:43 GMT
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I agree with all of the above!
Much better than using a flush. A flush can do more harm than good if it dislodges too much at once. You can get blocked oilways that way. Do a few changes with cheap diesel - extend the intervals gradually, and it'll be as good as you can get.
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Mar 15, 2014 20:58:04 GMT
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I think i would be tempted to drop the sump for peace of mind, just to make sure oil pump strainer not sh#tted up, and clean out sump.
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Mar 15, 2014 22:44:01 GMT
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I use a cheapy Adsa (or other brand) oil as flushes, run car for 10 miles or 15 minutes on mid range revs if not road worthy with a new filter then put in a mid range oil for the next 500 miles checking regularly before using the correct manufactures recommended grade with the correct oil filter, don't scrimp on the filter used.
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Mar 15, 2014 23:19:16 GMT
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Don't stick diesel oil in a filthy engine like this - the detergent will lift the dirt and carry it into places it shouldn't be in. Better to use petrol engine oil, even if it takes longer.  |
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stealthstylz
Club Retro Rides Member
Posts: 14,845
Club RR Member Number: 174
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Mar 16, 2014 11:02:33 GMT
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If its due a cambelt anyway whip the head off and stick it in a bucket of petrol then scrub off with a stiff brush. I can do a headgasket on the 8v's in half hour and the parts are probably cheaper than a load of oil.
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Fungus
Part of things
Posts: 960
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Mar 16, 2014 21:58:33 GMT
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Thanks for the input everyone, lots of useful knowledge! It seems that it's something that will usually have to be done over a long period of time.. However, this; If its due a cambelt anyway whip the head off and stick it in a bucket of petrol then scrub off with a stiff brush. I can do a headgasket on the 8v's in half hour and the parts are probably cheaper than a load of oil. makes a lot of sense as it's such an easy job, and the cam and exhaust manifold are due to be replaced soon anyway! With Euro's current sale a full headgasket change comes to a whopping £24 so i think i'll be doing it next weekend. Thanks again everyone. |
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Mar 26, 2014 19:07:56 GMT
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Take the sump off and clean the pick up pipe. If it's been sludged up, the likelihood is the pick up with have a few holes left to suck oil and it'llprobably be a bit tappety due to top end damage. I have done the petrol clean thing, but make sure the breathers are off before starting the car. (Can't link pics through Flickr anymore due to them 'upgrading' the interface) Clean: flic.kr/p/iSzcv9Blocked: flic.kr/p/iSxmrhBlocked pipe killed my engine (bottom end damage). |
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melle
South West
It'll come out in the wash.
Posts: 1,984
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Mar 29, 2014 11:44:10 GMT
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(Can't link pics through Flickr anymore due to them 'upgrading' the interface You can for your own images: 'you' > 'photostream' > 'edit' > right click on desired thumbnail > copy image location > paste to forum > change the last 'm' (medium size) to a 'b' (big). Sounds more complicated than it really is, but it is the fastest way and leaves you without extra Flickr URLs under the image. |
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www.saabv4.com'70 Saab 96 V4 "The Devil's Own V4" '77 Saab 95 V4 van conversion project '88 Saab 900i 8V
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