Engine replacement

[StumpMWI]

Failed to winterize and now have busted exhaust and heads...to pull the motor can i pull it by seperating the tranny or does it come out all together?

Thank you

 

[alldodge]

Its best and most all cases its easier to pull the motor and tranny together with an inboard. Disconnect the prop shaft and pull

Edit: What are you working on?

 

[StumpMWI]

Its best and most all cases its easier to pull the motor and tranny together with an inboard. Disconnect the prop shaft and pull

Edit: What are you working on?

Thanks alldodge...I am replacing a 4.3 in my 2015 tahoe...just watched a coulpe youtube videos and they all recommend the REMOVAL of the stern drive also?

 

[JASinIL2006]

If it's a stern drive, then yes, you need to remove the drive first. It might be possible to get the engine out without pulling the drive, but it would no doubt be much more complicated. It takes about 5 minutes to pull the drive, so there's really no reason to attempt to finagle the engine out with the drive in place.

Also, if it's a stern drive (aka I/O) it doesn't have a tranny.

 

[alldodge]

REMOVAL of the stern drive also?

A s JA mentioned a sterndrive does not have a tranny as an inboard would. Yes the drive has to come off before engine removal. Takes 20 minutes.

Being a 4.3 it should have a Alpha drive. The throttle handle gets placed in full forward before drive is removed.

 

[alldodge]

Note the trans attached to the motor of an inboard

 

[StumpMWI]

If it's a stern drive, then yes, you need to remove the drive first. It might be possible to get the engine out without pulling the drive, but it would no doubt be much more complicated. It takes about 5 minutes to pull the drive, so there's really no reason to attempt to finagle the engine out with the drive in place.

Also, if it's a stern drive (aka I/O) it doesn't have a tranny.

Understand all...it is an I/O JASinIL2006...Thank You

 

[StumpMWI]

A s JA mentioned a sterndrive does not have a tranny as an inboard would. Yes the drive has to come off before engine removal. Takes 20 minutes.

Being a 4.3 it should have a Alpha drive. The throttle handle gets placed in full forward before drive is removed.

Thanks Again...headed to the garage...I will be back with more questions...

 

[tpenfield]

Tranny??? . . . I don't see no tranny.

Pull the outdrive, then pull the engine.

 

[GSPLures]

The outdrive will have to come off for realignment anyway. Pull it first no point in fighting the shaft and risk possible damage.

 

[Searay205]

You need a manual and then read it. Holy cow. How will you ever get it back together. torque values ect. You can easily do it just get the right manual.

 

[Scott Danforth]

pulling your motor without pulling the drive first is like trying to remove your underwear without removing your pants. can you do it....... yes, however it takes 10X as long and you break things to do it.

 

[Lou C]

Lol
Good one there!
Yes get a manual and learn the right way. These forums are for filling in the blanks in manuals that are written for professional mechanics. You need to educate yourself first though. Otherwise you will ‘learn’ by making expensive mistakes.

 

[poconojoe]

Hold on a minute...you said you had a busted exhaust and heads.
Why are you pulling the whole engine?
Just replace the exhaust and heads, or is the block cracked too? You didn't state that.

 

[Lou C]

If it was a failure to winterize I think you can assume the engine was full of water as well as the exhaust manifolds. So the block, heads, intake and exhaust is likely cracked. One big hunk of scrap iron. If you put in an engine that's in good condition with no internal corrosion consider adding closed cooling to avoid this unpleasant event occurring again. That way at least the engine survives and the exhaust is easy to drain.

 

[StumpMWI]

Appreciate all the help...getting ready to install the stern drive and do a test run...