QUOTE(delsoo @ Oct 14 2017, 03:51 AM)
About same as mine.
Some oil drop, maybe a quarter of your dipstick every 1,000
- 1,500 km, is normal by this time.
My third, followed by my second, now my first too, spark plugs
will fouled up with some oil on the lower insulator and electrodes.
I have to take them out and clean them every few weeks, definitely
not more than a month.
I have changed my valve seals twice - initially improved for the
first few months after the first change, then the third one started
fouling again, which the mechanics couldn't figure out.
I know my piston rings are bound to be a bit loose by this time.
Your piston rings, valve seals, engine cover rubber, etc, are
also bound to be a bit loose by now.
If oil is in your radiator, first thing to look at is your cylinder head
gasket.
Go to your friendly mechanic, ask them to check it out.
To save money, ask if maybe you can just change the head gasket
for a start.
They will also change new valve seals, and grind your valves at the
same time. Ask then to check out the valve stem inserts too (the
metal cylinders which the valves slide up and down).
The last I heard a few years ago, this will cost about $450,
excluding the valve inserts.
The gasket kits which they give you or buy in the parts shops
may not contain Viton valve seals, usually the cheapest nitrile
types, poor heat resistance.
Go buy a set of good Viton valve seals yourself and pass it
to your mechanic. Around $ 30 for 12 seals.
Temperature range of valve seal materials -
Nitrile - 250 deg F
Polyacrylate - 300 F (like the NOK brown types)
Viton - 400 F (like NOK green types)
Teflon - 500 F (usually not used, since teflon is hard and not
flexible when heated up)
If you do a full overhaul (haul up the whole engine, change
piston rings too), I understand this will cost around $1,500
these days with their parts.
Maybe just $500 - 600 for labour alone, if you buy own parts,
like the other poster said.
The amount of oil from top to bottom of dipstick marks
is just about one liter, actually.
This post has been edited by Tham: Oct 15 2017, 01:16 PM