Got Mayo?
Thought I would share this.
Years ago I was checking the oil in my 180 and to my horror there was mayo on the cap and in the head!!! I panicked, HGF!
Then I looked closer at the whole thing and realized there was no contamination in the water coolant and the level was good and steady. Many days of searching about and I found the source of water ingestion to the oil system, the dip tube. Right where the dip tube and push fit connector come together in the sump. The push fit plastic connector in the sump has an 'o' ring that seals around the outside of the dip tube, however this o ring is half way down the inside of the inch long push fit connector. This allows water to accumulate inside the push fit connector above the o ring, and this rusts the dip tube. The rust expands and destroys the seal of the o ring, then water gets in and oil gets out!
You end up with a load of mayo and an engine that cant seem to hold oil above the level of the sump top.
If you have symptoms like above it would be well worth having a look at the part of the dip tube that is normally nestled inside the black push fit connector. Release the single bolt that holds the tube at the timing belt and use a small flat screwdriver to hold the red ring down as you pull the tube up. Getting the tube all the way out will require some twisting and turning but it will come out. The push fit is impossible to get out however if you buy a new one you can use the o ring from the new one to replace the old one, that red part at the top just pulls out, your little finger can then fish out the o ring. Dip tubes are not made any more but a scrappers might have a good one. If there is rust on yours it is scrap, the o ring needs a good smooth surface and it needs to be the same diameter as new so don't sand it down.
I hope this saves someone from incorrectly getting HG's done.
I need to add that before I removed the rusty dip tube, the parts that I could see were in pristine condition, the rust was only on the part that sits inside the push fit connector. In fact my first thoughts were that the push fit had failed, I ordered a new one and removed the tube, that's when I realized that the tube was rusted. So even if it looks good, looks great, it could be rusted where you can't see.
Years ago I was checking the oil in my 180 and to my horror there was mayo on the cap and in the head!!! I panicked, HGF!
Then I looked closer at the whole thing and realized there was no contamination in the water coolant and the level was good and steady. Many days of searching about and I found the source of water ingestion to the oil system, the dip tube. Right where the dip tube and push fit connector come together in the sump. The push fit plastic connector in the sump has an 'o' ring that seals around the outside of the dip tube, however this o ring is half way down the inside of the inch long push fit connector. This allows water to accumulate inside the push fit connector above the o ring, and this rusts the dip tube. The rust expands and destroys the seal of the o ring, then water gets in and oil gets out!
You end up with a load of mayo and an engine that cant seem to hold oil above the level of the sump top.
If you have symptoms like above it would be well worth having a look at the part of the dip tube that is normally nestled inside the black push fit connector. Release the single bolt that holds the tube at the timing belt and use a small flat screwdriver to hold the red ring down as you pull the tube up. Getting the tube all the way out will require some twisting and turning but it will come out. The push fit is impossible to get out however if you buy a new one you can use the o ring from the new one to replace the old one, that red part at the top just pulls out, your little finger can then fish out the o ring. Dip tubes are not made any more but a scrappers might have a good one. If there is rust on yours it is scrap, the o ring needs a good smooth surface and it needs to be the same diameter as new so don't sand it down.
I hope this saves someone from incorrectly getting HG's done.
I need to add that before I removed the rusty dip tube, the parts that I could see were in pristine condition, the rust was only on the part that sits inside the push fit connector. In fact my first thoughts were that the push fit had failed, I ordered a new one and removed the tube, that's when I realized that the tube was rusted. So even if it looks good, looks great, it could be rusted where you can't see.
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publié par vb @ 15:22
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