OVERKILL
$100 Site Donor 2021
There were 4 drains, two on each side above the wrist pin, you can see them here:When I rebuilt that engine, I drilled new oil return holes. Don't recall any slot at all.
Ok, but no slots to take oill away from behind the oil ring. Oil return reliefs, anyhow the oil could not drain and it burned in place.
Yes, it was a stupid design decision. Saturn "a different kind of car from a different kind of company" (who apparently forgot how to design pistons, even though it was just GM, who was doing it for a century).This caused all their engines to be oil burners to the extreme. Like as much as a quart every 200 to 500 miles. I remember the discussion on the Saturn Fans forum about the thinking behind what they did, they deviated from what works and did something unusual and it was a fail
Why? Was it planned that way? Is it a design error?
- KevGuy
- Replies: 22
- Forum: Passenger Car Motor Oil (PCMO) - Gasoline Vehicles
These problems trend towards self-resolution when the engine blows up as in people forget to add oil continually.
The location of the 4 drains, which the large span of area without any drainback holes, setup the engine for coked rings and major oil consumption.