CS 1600 Diesel. Major oil leak

Big lumps of metals and spanners. Including servicing and fluids.

Moderators: User administrators, Moderators

Post Reply
bhpdub
Trader
Posts: 1114
Joined: 08 Feb 2012, 22:02
80-90 Mem No: 11205
Location: Nottinghamshire, UK

CS 1600 Diesel. Major oil leak

Post by bhpdub »

Sat scratching my head!
Got a 1600 Diesel (CS engine)
It's got a major oil leak, and drop in pressure (Oil light flashing on dash, and lots of oil being thrown around front/pulley end of the engine, and spewing on to the ground)
Removed timing belt cover, and it's not coming from inside there, as it's totally dry.
Bottom crank pulley seal is bone dry.
Breather is not blocked, and I don't think it's coming from the rocker cover, as that seems pretty dry too.
Not coming from the sump gasket (I don't think)
Really scratching my head as to where the oil is coming from?
The engine itself starts/runs/sounds quite nice (well as nice as one of these old oil burners do) Not overly smoking or anything.
Anyone experienced something similar?
Any help or advice would be appreciated.

colinthefox
Registered user
Posts: 858
Joined: 20 Oct 2009, 18:42
80-90 Mem No: 16447
Location: Somerset
Contact:

Re: CS 1600 Diesel. Major oil leak

Post by colinthefox »

There's an oilway plug in the end of the cylinder head. Mine always leaked a bit, but never fell out.
I would have said a rust hole in the oil filler tube, but that wouldn't result in a drop in oil pressure.
The intermediate shaft has an oil seal, but that wouldn't drop the oil pressure either.
Oil pressure switches have been known to blow, then the oil runs along the sump line and off the back of the engine.
Other than that, you'll have to clean it up, then start the engine and keep looking.
1.9D (AEF) pop-top. Aaaaahhhhh........that's better.
Image

User avatar
nevill3
Registered user
Posts: 996
Joined: 26 Nov 2009, 16:59
80-90 Mem No: 8062
Location: UK Lake District, Early 1.6D CS now 4 speed gearbox
Contact:

Re: CS 1600 Diesel. Major oil leak

Post by nevill3 »

Is the dip stick tube still seated in the block? It is only a push fit with an 'O' ring to seal it, mine used to leak there but not lots and lots.
1983 1.6D cs PopTop Camper

Baysbrown Farm Campsite, Lake District

bhpdub
Trader
Posts: 1114
Joined: 08 Feb 2012, 22:02
80-90 Mem No: 11205
Location: Nottinghamshire, UK

Re: CS 1600 Diesel. Major oil leak

Post by bhpdub »

Thanks for the replies chaps.
I'll clean it all off, and run it up to temp tomorrow to see if I can source the leak.
I'll keep you posted
Got to love T25's! :-)

Post Reply