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Model specific boards => Golf mk4 => Topic started by: Rmachines on 27 April 2014, 23:47
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I have got my self a mk4 golf with the akl 1.6 Sr engine, it drives spot on, but went to mot it for it fail all 3 emission tests, I thought it was overfueling big time but now it's smoking when hot all 4 plugs are coked and started to go lumpy... And a LOT of smoke! So looks like it's burning oil, I have the inlet manifold off which is lined in oil, and no signs of oil on the top of the valves over night so I don't think it's the stem seals, So the oil control rings are suspect, is this common on the akl engine? The engine has been over fueling for a while by the looks of it due to a faulty thermostat and temp sensor, as well as short trips, then being left for a few months Unused... I'm in the process of trying to free the rings by pouring octain booster, brake cleaner and ATF in the bores and rocking the engine/ cranking.. (worth a try?) I only paid £200 for the car, but having spent a lot on it including a new cat and suspenssion/brakes I would like to revive it. I'm a mechanic so labour is no problem. I'm just curious if any one else has had this problem.
Also, on diagnostics, it's constantly reading "rich" and throwing a code for lambda lower limit exceeded so whether this is still overfueling, or Because of the oil content I'm not sure... Any one else had a similar problem?
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Oh dear. Noone wants a sticky ring.
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One of the sh!ttest engines VW ever made.
That is all.