bastardized1993 Mercruiser ski mag oil change question

Rugglesworth

Petty Officer 2nd Class
Joined
Jul 6, 2023
Messages
184
Boat is a 1994 Ski ray tournament direct drive

Hi everyone, I wanted to start a new thread as my last one was about oil type. the motor was originally a 1994 350 ski mag but the block was replaced with a zz4 block (confirmed serial number). Before I sucked the oil out the dipstick showed being at or over the full point. I sucked out the oil with a transfer pump (didn't take off the oil filter yet) and only about 3.2 to 3.5l of oil came out.

Another thing I noticed is it looks like they epoxied in the dipstick and may not be the right one.

I am wondering if the dipstick the wrong one? I measured the actual stick from the bottom of the handle to the tip at 33".

I don't want to overfill it but don't want to underfill it either. Engine runs great now with good oil pressure. Obviously, the motors are at quite an angle in a direct drive but I would think they'd put the right dipstick in to take that into consideration.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,208
Ayuh,..... Finish yer oil change, 'n dump in 4.5qts, test run it, then check the level,.....
It should be where it longs,.....
Provided of course it has the typical 1/2qt. oil filter, 'n the standard oil pan,.....
 

Scott06

Admiral
Joined
Apr 20, 2014
Messages
6,920
Only thing I might add is there a drain plug in pan to verify it is empty or mostly so? If wrong dipstick is used does it go all the way down to bottom of pan
 

Rugglesworth

Petty Officer 2nd Class
Joined
Jul 6, 2023
Messages
184
Sonic measured the dipstick tube with a sewing measuring tape and it was only 23" so 10" shorter than the dipstick. Does this make sense
 
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