OzTinkerer
New member
- Joined
- Jul 17, 2017
- Messages
- 8
- Location
- Yarraman, Qld, Australia
- Tractor
- MF35, Ferguson TE-D20, Chamberlain C670, MF300 Crawler
Hi all,
I've recently purchased a 1960 vintage MF35 Deluxe with the Perkins 3A-152 diesel. I have a couple of other machines with later Perkins diesel engines (MF-300 crawler/Perkins 4-248 & Chamberlain C670/Perkins 6-306) that are still in excellent condition. I realize the MF35/3A-152 over a decade older but I'm concerned by the amount of oil in the exhaust system.
The exhaust outlet is wet with oil and oil dribbles from the elbow to muffler joint (and the bottom of the elbow when I remove the small threaded plug). However the exhaust is not blowing excessive blue oil smoke. I've run it only for short periods so far (around ten minutes) but the exhaust seems only to have a faint blue haze, with a healthy black puff when throttling up. The engine starts readily and runs smoothly (and the 3 cylinder has a great exhaust note!)
There are signs the head gasket may have been replaced recently. Is it possible an error was made in fitting the new head gasket and replacing the head that could allow engine oil to leak directly into the exhaust manifold without being burned in the cylinders?
(Since writing the above, I've run the tractor for longer periods, including about half an hour cutting moderate grass with a 4′ 6″ slasher. It maintained oil pressure of over 50 psi during this run and, again, was not making much blue oil smoke, but was still wetting the exhaust with quite a lot of black oil. Any clues, anyone?)
I'd much appreciate any suggestions or recommendations.
Best regards,
Ian,
Australia
I've recently purchased a 1960 vintage MF35 Deluxe with the Perkins 3A-152 diesel. I have a couple of other machines with later Perkins diesel engines (MF-300 crawler/Perkins 4-248 & Chamberlain C670/Perkins 6-306) that are still in excellent condition. I realize the MF35/3A-152 over a decade older but I'm concerned by the amount of oil in the exhaust system.
The exhaust outlet is wet with oil and oil dribbles from the elbow to muffler joint (and the bottom of the elbow when I remove the small threaded plug). However the exhaust is not blowing excessive blue oil smoke. I've run it only for short periods so far (around ten minutes) but the exhaust seems only to have a faint blue haze, with a healthy black puff when throttling up. The engine starts readily and runs smoothly (and the 3 cylinder has a great exhaust note!)
There are signs the head gasket may have been replaced recently. Is it possible an error was made in fitting the new head gasket and replacing the head that could allow engine oil to leak directly into the exhaust manifold without being burned in the cylinders?
(Since writing the above, I've run the tractor for longer periods, including about half an hour cutting moderate grass with a 4′ 6″ slasher. It maintained oil pressure of over 50 psi during this run and, again, was not making much blue oil smoke, but was still wetting the exhaust with quite a lot of black oil. Any clues, anyone?)
I'd much appreciate any suggestions or recommendations.
Best regards,
Ian,
Australia
