2ASeries484G
New Member
Had a problem with my 2a's 2.5NA where the furthest away tappet shaft fills up with oil as soon as the engine starts. Not long had the landy, have done 250 miles of short journeys in it no problem. I topped up the oil to the "full" level on the dipstick directly into the sump through a pipe that comes out the side (was thinking of the 2.25 oil filler and decided against putting it through the rocker cover hole for the breather cap). Drove fine for 20 miles home or so.
Next day I had it on the motorway, after climbing a big hill slightly faster than I should have, I could smell hot oil and the oil pressure warning light was flickering. Pulled over and lots of oil was dripping down the block onto the ground. The breather cap had popped off too, it was connected to a chassis lubrication bottle instead of the inlet manifold. drove further with the pipe off the cap after topping up the oil (the correct way this time) and found that oil had been coming out of the filler cap pipe, not necessarily the rocker cover gasket.
Made it the 100 miles or so slowly and the problem seemed to go away. Ran the landy a few days later and the same problem happened with oil coming out of the filler cap pipe.
There is some blowby I can feel when I take the cap off when the engine was running, the dipstick was also under pressure the first time I stopped on the motorway but this hasn't happened since.
With the rocker cover off, I can see the furthest back tappet shaft (No. 4 Exhaust) filling with oil quickly and then pouring all over the block. The pipe the feeds the rockers is clear and some oil also pumps through this.
Had the head off and the same problem occurs. I usually get no smoke when the engine's been running a few minutes and good power which suggests it's unlikely to be a piston ring.
Has anyone seen this problem before or have any idea what's causing it? Are there any inspection covers on the o/s of the block I can open to get access to the cam/tappet etc.
I'm working on the street at home so would rather not take the sump off if can avoid it.
TIA,
Adam
Next day I had it on the motorway, after climbing a big hill slightly faster than I should have, I could smell hot oil and the oil pressure warning light was flickering. Pulled over and lots of oil was dripping down the block onto the ground. The breather cap had popped off too, it was connected to a chassis lubrication bottle instead of the inlet manifold. drove further with the pipe off the cap after topping up the oil (the correct way this time) and found that oil had been coming out of the filler cap pipe, not necessarily the rocker cover gasket.
Made it the 100 miles or so slowly and the problem seemed to go away. Ran the landy a few days later and the same problem happened with oil coming out of the filler cap pipe.
There is some blowby I can feel when I take the cap off when the engine was running, the dipstick was also under pressure the first time I stopped on the motorway but this hasn't happened since.
With the rocker cover off, I can see the furthest back tappet shaft (No. 4 Exhaust) filling with oil quickly and then pouring all over the block. The pipe the feeds the rockers is clear and some oil also pumps through this.
Had the head off and the same problem occurs. I usually get no smoke when the engine's been running a few minutes and good power which suggests it's unlikely to be a piston ring.
Has anyone seen this problem before or have any idea what's causing it? Are there any inspection covers on the o/s of the block I can open to get access to the cam/tappet etc.
I'm working on the street at home so would rather not take the sump off if can avoid it.
TIA,
Adam
