Piston rings

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Originally Posted by Chris078

Thanks Blknight.
how do you tell what dip stick is in there?
I just measured mine and the dip part it's 805mm to the bottom of the plug.
I'll get him to measure his.


There may be some shennanigans going on with this motor.

It seems it has a strange oil line connection from the alternator. Instead of the line returning to the block, it's actually going back to the dip stick tube.

Trying to get him to take a photo so I can see exactly what the layout is.
Has anyone heard of this arrangement?

He bought in the very first round of auctions, so if this is a modification of some sort, then the Army would have been the one who did it.

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doesnt sound right to me and it would definately account for the dipstick getting blown up and oil being fed out the tube.

if there isnt some one near by that can measure one up for you the easy way is at a service when you drain the oil just add the book spec quantity and see where it is on the stick.

Thanks Phil B! At least we now know that is an actual thing and not a field repair that made it through.

He has 3 other of these engines plus me looking at mine and this one is the only one set up that way so we were concerned about it.

So the current diagnosis from his mechanic is that the compression is ok,
and that
"The attachment on the back of the alternator that has a tube running down to the dip stick tube. They feel that there is a vortex developing there somehow." - His mechanic

Quote:

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Originally Posted by Blknight.aus

doesnt sound right to me and it would definately account for the dipstick getting blown up and oil being fed out the tube.

if there isnt some one near by that can measure one up for you the easy way is at a service when you drain the oil just add the book spec quantity and see where it is on the stick.

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It's an odd one, but as per above post from Phil B, it seems this layout is out there.

He's compared all 3 dipsticks he has from the 3 different motors he has
(his FFR, his old wrecked County and he has a 6x6 as well) and they are all the same length, so I think we can cross that off the list.

I don't know about the oil fill thing. Mine has only ever taken 7.5 L of oil to fill to the top of the second dot on the dip stick. Book says 8.5L capacity but do you ever fully drain the system? Isn't there is always oil stuck in the oil pump and the vacuum pump that doesn't drain out?

If the dipstick tube has been modified, is it by any chance longer, giving a higher oil level?

John

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Originally Posted by JDNSW

If the dipstick tube has been modified, is it by any chance longer, giving a higher oil level?

John

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Information to hand is that this mod to the oil return line is done for FFR vehicles due to the second alternator taking up the space that the line would normally run through.
Seems a reasonable explanation.

still need to work out why there is pressure in the block forcing oil out the dipstick.

Makes sense.
Mine is an FFR