I don't need to try to 'catch anyone out'. You rightly say they all burn oil as the mileage rises, how do you think this oil is being burned? It leaks through the stem seals on these engines , as the problem gets worse, smoke will be visible, initially on start up and eventually any time the engine is revved. Most Toyota A and E series engine of the time suffer this problem.
There are only 2 ways oil can leak into the combustion chamber, either through the piston rings or through the valve stem seals, a leak down test will show any issue with the rings/pistons etc. If this is ok then the stem seals need changing and this can be done without even removing the head.
If your point it that because this engine has been run low on oil a number of times and therefor is ruined, well first of all if damage has been caused it will be noisy when running, second, damage begins in the head as low oil pressure leads to the cams/lifters etc being starved of oil first so the condition of those, and therefor the likelyhood of further damage, can be assesed when the rocker cover is removed.
surely if a car is burning oil in such large quantities that it needs to be checked every 500~ miles it will produce blue smoke?
i mean when oil is being burnt, isn't blue smoke something that will be there, it's not a "will it, wont it" kind of thing is it?
Yes, oil level can only drop 3 ways, leaking externally, leaking internally into the cooling system or leaking internally into the combustion chamber.
Externally will have obvious signs, into the cooling system will be coupled with cooling issues.
When leaking into the combustion chamber and being burned, there will be smoke, how much depends on how bad the leak is. If someones engine is 'burning' oil then either its not leaking badly enough to cause noticable smoke or they just haven't noticed any smoke.
I know the thread has moved on from here, but I admire Kermit's parents still driving at 96, I never heard of Maroon but I presume it's a village somewhere in this country.
You obviously have led a very sheltered life and I drive a 1990 car
NissanDoctor, PM sent.
Everyone else - yeah, I know I practiced very shoddy maintenance on this but in my own defence, it gets through so much oil that even if I had been servicing it every 6k I would probably have had to top up by a full 4 litres before service time anyway which I assume means something must be wrong.
Kermit, what pace do your 4afes get through oil? How many miles per litre added approx?
To be honest I check the oil so often I wouldn't be able to give a definite figure but I could give a estimate. The low mileage engine 140k would burn from the top mark on the dipstick to the low in about 3000 miles. The other car 294k would burn that level out in 1000miles.
How many litres would you say is the difference between the top and bottom marks on the dipstick?
In fairness, I'd say my consumption is somewhere between the two you're mentioning. I certainly don't think I'm gettin thru it at the rate you're saying for the 294k engine. You must either be doing low mileage or constantly turfing oil into that one!
Is there never even the slightest whiff of oil burning in the exhaust if you stand beside them with the engine running or if you are stopped in traffic at night can you see puffs in the headlights of the car behind when stopped at lights etc?
294k is enormous mileage. What mileage had that car when you bought it? What repairs have you had?
I dont actually know how many litres there is in between the low and high mark on the dipstick. We bought it off a neighbour with 101k on it, it had a service history, from then on I serviced it every 6k without fail myself.
For the nct it needed bushins,brake lines and drop links and a tie rod twice.
It also needed a steering rack and the no3 injector was replaced once.It got a set of disks at 200k and cylinders and shoes in the back at 250k. It also got a radiator.
It doesn't blow smoke, only time I see smoke is on a cold day at start up which in my book is normal.
My dad uses it as his daily driver and has been to England in it 2 months ago. It is tested till 4/13 and needed brake lines for the test.
It wont win any beauty contests but will sit at 75mph on the motorway and in normal driving is quite good on fuel. My dad will be driving it into the ground, the body is rust free so we expect to get another 5-6 years out of it, I have spare engines and boxes so that is why we will keep it running. It may never need those parts but as I have them it wont be costing anything to keep it going if the engine went etc where as for anybody else it would be going to the scrapper.
Have you experience of this engine? This wouldn't be a standard number in most cars would it?
Yes, I topped up more than a few for folk when I worked in a factors years ago, to bring the level from half way between min and max on the dipstick to the max mark took over a half litre of oil iirc.
No, but 750mls to 1250mls is a decent enough range in fairness.