Anyone know what this deposit is
This is an inside shot of the block of my 2.25 litre motor with the pan off.
The white substance is mainly below the crank at the front of the motor (inside the block).
It comes off with a finger and is black and oily underneath and white and cracked on top.
Feels gritty and oily when rubbed between my fingers.
This is a Turner re-build with 25 - 30,000 miles on it.
It runs fine I just wanted to sand blast the pan and this is what I saw when I removed it.
2011 RR HSE -
1970 LR Series 2A Bugeye BenzOver
2001 GMC 2500 4wd