Looks like you ought to just pull the engine and put two fresh new rear engine mounts that press into the flywheel cover as it appears the one has moved :(... See items 2 and 3 of the first following engine parts link, https://www.mercruiserparts.com/bam/subassemblydetail/51242595/28214543...
Have you tried a combination of fair amount of heat and an impact screwdriver right there after?
If possible, a good flame tends to work better than a heat gun.
impact screwdriver
The top screw is going to be for an oil vent ‘plus an oil full indication…
and the oil drain screw depending on actual drive model you have ought to be on the lower (port side?) gear housing but could be on either side and more often than not way down low but just above the skag closer to the...
To me I’m thinking the back cap of the upper housing suggests this drive is something different than any of the alpha type models plus the size of the overall housing and mounting surface area to name a few.
It could be more of an TR, TRS, MerCruiser II-TR 1973-1976 or any one of the numbered...
Odd, not seeing a modular on the quick for the 3000 but am able to locate both older 2000 and newer 4000 parts breakdown.
Number 9 or 10 maybe for examples,
https://www.perfprotech.com/mercury-marine-parts-catalog/modular-components4000-models/assembly/8457/37?model=4299...
That’s a bummer they lost a lot of past info such as that… shocking honestly.😔
Thankfully using the Merc online launch parts search function (and a few others out there) still offers model numbers and parts catalog guides for this engine serial number in particular but has been both found to be...
That book chart always seemed a bit off to me when you see two starts of the same number in two different years.
Thinking only If possible, Merc net may suggest the built date via the serial number when searched correctly.
While i don’t believe there’s any real difference between the two years plus the variance of years suggested is sort of a long history story, I’m able to find that your serial number transpires over to model number 7040505
7040505 in which suggests the year to be 1985.
1985 40 [E]
Parts Group...
If you’re able to maybe locate an fuller? engine type serial or model number on your engine, it may help to find and confirm your exact engine parts catalog such as an example using 2023 115A which is probably close enough of a find preforming a online search helped shows Suzuki calling the bond...
Bear in mind this SB is more intended to take care of a just realized manufacturing, limited time “warranty” work for anyone experiencing odd issues that can’t be found after inspection of a lot of other possibilities beforehand and not really meant for general boating forum websites especially...
Your probably going to want to perform the test on page 3 of 3 jumping the shift switch,
https://www.crowleymarine.com/sb/2/10455
If the test appears to fix the issue, let us know…. Hint, be prepared tool wise to temporarily remove the complete shift plate assembly off of the engine and go for...
Take note of the notes which includes a size of reference (M12)
https://www.mercruiserparts.com/bam/subassemblydetailarchive/30766/2327/13
66
4011912
--NUT-Brass (M12)-For SS Propellers
$0.00
1
66
88228
NUT-Nylon (M12)-For Alum Propellers
$2.92
1
Pretty sure your serial number is 411168003 while the product number ought to be 3868724.
https://www.volvopenta.com/shop/0/search?ft=3868724&partType=All&serialnumber=4111658003&size=10
