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1985 MG EFi engine is blowing the crankshaft oil seal out of the oil pump housing. Just wondering if the crank/camshaft wheel combination is wrong for the engine as the EPC shows that there should be a flanged washer each side of the cam wheel on the early engines and this one hasn't got that.
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1990 MG Maestro Turbo #436 (To keep me occupied in retirement)
2023 Hyundai Tucson Ultimate Hybrid(Daily run-around)
1974 Austin Allegro Semi-works Rally Car
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Is it oil weeping out of the crank seal or the oil pump gasket?Originally posted by Sussex Pete View Post1958 Ford Consul Convertible. I love this car
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Its physically moving the oil seal forward out of the housing and dumping a load of oil on the floor. Thankfully this has happened while the engine has been idling, rather than in use and on a road. This is what made me wonder about different pulleys and flanged washers, as its like something that should retain the seal in its housing isn't there.Originally posted by Jeff Turbo View PostMembership Secretary
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1990 MG Maestro Turbo #436 (To keep me occupied in retirement)
2023 Hyundai Tucson Ultimate Hybrid(Daily run-around)
1974 Austin Allegro Semi-works Rally Car
You know you are getting old when your knees buckle and your belt doesn'tComment
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I would say you have the wrong oil seal in place or the breather is blocked as that shouldn't happen. On my early engines I don't have an extra washer to keep a seal in place.1958 Ford Consul Convertible. I love this car
1965 Ford Zodiac Executive. Fab cruiser being restored
1997 Jaguar Xk8 Convertible. Such a fab car
2003 MGZT V8. BRG and new project
2004 MGZT cdti. Great workhorse
2004 MGZT V8. Black I love this carComment
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It is not normal to have pressure behind an oil seal, I have never dismantled a pump but would think it should have a drain behind the seal leading to the sump.
how many time has this happened?Comment
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Three times so far. I think pump and breather will be the next areas to check, once a new seal has been sourced and fitted.Membership Secretary
Join the M&MOC | Printable Club Flyer (PDF)
1990 MG Maestro Turbo #436 (To keep me occupied in retirement)
2023 Hyundai Tucson Ultimate Hybrid(Daily run-around)
1974 Austin Allegro Semi-works Rally Car
You know you are getting old when your knees buckle and your belt doesn'tComment
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I had exactly the same problem on a Rover 214 many years ago.
A new seal made no difference.
Thoroughly cleaning the housing and new seal with brake cleaner, followed by the gentle use of fine emery cloth on both and then a smear of Superglue around the seal finally did the trick. I did not start the engine for a couple of days, just to give everything a chance to set.
Approx 7 years and 75000 miles later I sold the car. Not a single drop had leaked out!1983 (Y) MG 1600
1985 MG EFi with digital dash (owned since 1987)
1987 700 City 1.6 Van
1988 Tandy camper 2.0D
1990 Advantage, just 29k on the clock
1990 Clubman D
1990 MG 2.0i (spares donor)
(all Maestros)
Daily drive: Rover 25 GTi
Weekend rave: Honda Civic Type R GT
Current projects: Allegro 1.7HLS, Allegro EquipeComment
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I would check the pump before you fit the seal as it is not much extra work and might save the engine.Comment
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