Like Tree0Likes

Measuring engine height ?????????

Old 05-03-2007, 07:54 AM
Thread Starter
Join Date: Apr 2001
Location: St. Cloud, MN
My Boats: Skater 28 w/ twin 300X's
Posts: 280
Default Measuring engine height ?????????

Guys -

Can someone walk me thru measuring engine height? I have a 30 foot Spectre with twin 300 Mercs. I've been told that engine height should be ~ 1 1/2 inches above the bottom of the boat.

Are they referring to prop shaft height? The front of the nosecone? That should be the same thing, right? What's the best way to measure this? Also, are you suppose to measure straight ahead of the nosecone, in a straight line, to the back of the boat? Reason I ask is the boat is "deeper" towards the middle.


Mike Sufka
St. Cloud, MN
mikesufka is offline  
Reply With Quote
Old 05-03-2007, 01:44 PM
Charter Member # 55
Charter Member
Griff's Avatar
Join Date: Oct 2000
Location: Omaha
My Boats: .......32............. ...............Active Thunder....
Posts: 15,752

Measure with propshaft parallel to bottom of boat. Tape a ruler to the transom, then use a straight edge to extend where the prop shaft center would meet the ruler. Keep the straight edge at the same angle as the propshaft.
Griff is offline  
Reply With Quote
Old 05-03-2007, 10:30 PM
monstaaa's Avatar
Join Date: Feb 2005
Location: long island, newyork
My Boats: 3kids
Posts: 2,551

i have ste up cat outboards in this fasion. straight edge( 4 foot level) directly in front of bullete. as stated measure to center of bullet from top of straight edge. the formula you can start with is , for evey 4 inches you can come up 1/4 of an inch. typicly 1 1/4 - 1 1/2.
you can also differ the heights from left to right, which will make the boat crab, but also make it faster.
monstaaa is offline  
Reply With Quote

Related Topics
Thread Starter
Last Post
General Boating Discussion
09-26-2006 06:42 PM
Prop Talk
03-28-2006 12:51 PM
09-26-2003 01:30 AM
General Boating Discussion
06-12-2003 04:24 AM
General Q & A
03-29-2003 10:13 AM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 05:36 AM.

Copyright 2011 OffShoreOnly. All rights reserved.