Oil Expulsion Problem (Way Beyond A Standard Leak)
#1
Posted 07 December 2016 - 10:53 PM
My first thought was crap that's bad so had a compression test done and it all came back fine.
The car has no knocks, rattles or bangs runs smoothly even managed the l2b this year without issue. Engine has done around 78000 and i have had the head off and all looks to be OK with the pistons and everything.
The breathers are clear and I've changed the filler cap just in case, I've tried a heavier dipstick with no luck.
Also it doesn't do this all the time sometimes months will pass without this happening and other times it'll happen several times a week.
So has anyone got any ideas?
The only thing I haven't done is the pressure relief valve how likely is it that this is the issue or am I just clutching at straws?
#2
Posted 07 December 2016 - 10:59 PM
I would bung up the dip stick hole , & rev it up - if it stops leaking -
- then blow by is the problem , venting from the dip stick hole
if it still leaks -
- it sounds like the oil filter feed pipe is damaged to me , or banjo bolt , copper washer , oil filter housing , or even oil filter
I have seen dip sticks with springs on - but that is to stop them rattling around
how much blow by is there from the filler hole ?
and has it got the correct dip stick ? -
have seen in the past a short dip stick (oo err misses) , meaning the oil level is high and is hitting the crank
that kicks up a lot of oil that leaks everywhere
also a spray pattern isn't always from the nearest component - a jet of oil can be small but powerful & can spray across quite a distance
Edited by sledgehammer, 07 December 2016 - 11:09 PM.
#3
Posted 07 December 2016 - 11:03 PM
Hadn't considered the feed pipe will try changing that as well thanks.
#4
Posted 07 December 2016 - 11:03 PM
So they can do what they should do.
Also check the pipe thst goes across the block.
I would also stick some masking tape strips across the block to help ID where the leak is. And check often.
#5
Posted 07 December 2016 - 11:11 PM
Will check feed pipe hope it's not that they're quite pricey and hard to get hold of.
Although still preferable to pistons and engine rebuild.
#6
Posted 07 December 2016 - 11:14 PM
also check for double 'o' rings on the oil filter - it's unlikely , but have seen where an old oil filter o ring has stayed on the housing
and someone has put a new oil filter on - the oil pressure was too much for the 2 o rings , so a jet of oil squirted out
but it usually blows the seal out of the side of the oil filter
#7
Posted 07 December 2016 - 11:20 PM
Breathers are fine,
Will check feed pipe hope it's not that they're quite pricey and hard to get hold of.
Although still preferable to pistons and engine rebuild.
if it is leaking you could get the barbed hose connectors & oil safe hose for the oil cooler kit
you need to find the size of the thread , as the ones on ebay are a silly price
#8
Posted 07 December 2016 - 11:22 PM
Probably gummy rings.
Try an oil change for a diesel lube oil for about 300 miles and change back to something of quality.
#9
Posted 08 December 2016 - 10:43 AM
http://www.minispare...cks.aspx?1~2~23
I'm using the number 12 one without a tube on a 998cc it just sits on top of the block. Is a bit fiddly to get in and kind of sits at an angle and is a very loose fit.
Tried to get a pic up but couldn't upload it.
This is how it was when I bought it so just assumed it was right.
Edited by Walkers1985, 08 December 2016 - 10:44 AM.
#10
Posted 08 December 2016 - 10:47 AM
is that engine a replacement a+ ?
I think a 998 1973 engine should have a tube & be a non + engine
(all the above is my recollection - I've got a poor memory)
a+ engines are ribbed for extra pleasure strength
& have a simpler dizzi clamp - & other bit's
Edited by sledgehammer, 08 December 2016 - 10:50 AM.
#11
Posted 08 December 2016 - 11:07 AM
I guess best way to check would be to get a tube and then when I do my oil change fit it and see if when I fill it up with the correct amount of oil it hits the max mark?
Edited by Walkers1985, 08 December 2016 - 11:09 AM.
#12
Posted 08 December 2016 - 11:30 AM
20161208_103754_crop_967x285.jpg 27.75K
9 downloadsFinally found out how to put up pics, so this is the dipstick I'm using without the nylon tube on the engine block.
#13
Posted 08 December 2016 - 12:35 PM
all dipsticks are the same.
the difference is the As had a press fit tube and the A+ did not. you cant fit an A tube into a A+ block. and if you could the oil would be 2" too high.
#14
Posted 08 December 2016 - 01:33 PM
#15
Posted 08 December 2016 - 01:56 PM
no idea about the nylon. maybe it was changed or aftermarket part but the originals were steel.
some images
A+

and an A

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