Engine alignment

[Bikingsailor99]

I rebuilt my 4.108 in my Irwin 37 and changed transmission.
I had to modify motor mounts and add 4” coupler.
How do I get the proper angle and alignment
Thank you for your help.

[roberttigar]

just did this on my 4-108 after installing new motor mounts. Followed instructions from an old article in water sailing">Blue water sailing. PM me your email address and I'l try to scan the article and send it ot you. Bob

[Bikingsailor99]

Originally Posted by roberttigar

just did this on my 4-108 after installing new motor mounts. Followed instructions from an old article in Blue water sailing. PM me your email address and I'l try to scan the article and send it ot you. Bob

bikingsailor69@yahoo.com.
Thank you.

[GordMay]

Greetings and welcome aboard the CF, Bikingsailor.


Some light reading:

➥ https://www.proboat.com/2010/11/running-gear-alignment/

➥ https://www.cruisingworld.com/prop-shaft-alignment

➥ https://www.yachtsurvey.com/Alignment2.htm