Cross-Flow or Loop-Charged?

rmilford

Cadet
Joined
May 6, 2013
Messages
12
Good day ... i have a 1988 johnson GT150 GT VRO and am trying to determine if it is a looper or crossflow. I want to check the shift rod height and they are different depending on the type .. I also looked in the FAQ and could not find te shift rod height for this year. They ad it listed for earlier but not the 88 (or I could not find it :confused: )

The model number is: J150STLACA

Any help is def appreciated

Thanks!!
 

JoshKeller84

Petty Officer 1st Class
Joined
Jul 2, 2010
Messages
220
Re: Cross-Flow or Loop-Charged?

according to the parts chart, it has the large deflector ridge on top of the piston which makes it a crossflow.
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: Cross-Flow or Loop-Charged?

Shift rod height. 22 1/16 +- 1/32 "............... This was out of a '89 service manual.
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: Cross-Flow or Loop-Charged?

1988 johnson GT150 GT VRO and am trying to determine if it is a looper or crossflow. I want to check the shift rod height and they are different depending on the type. The model number is: J150STLACA.

1979 thru 1988 - All V/6 Crossflow models = (L) 22-1/16" - - (XL) 27-1/16" plus/minus 1/32". Have shift rod in neutral.

A rule of thumb so to speak of the early crossflow/looper difference...........

Three aluminum carburetors = Crossflow.

Six plastic carburetors = Loop Charged.
 

rmilford

Cadet
Joined
May 6, 2013
Messages
12
Re: Cross-Flow or Loop-Charged?

Thanks to everyone who replied !!! i really appreciate the help
 

rmilford

Cadet
Joined
May 6, 2013
Messages
12
Re: Cross-Flow or Loop-Charged?

Is that set in neutral?

Thanks again

1979 thru 1988 - All V/6 Crossflow models = (L) 22-1/16" - - (XL) 27-1/16" plus/minus 1/32". Have shift rod in neutral.

A rule of thumb so to speak of the early crossflow/looper difference...........

Three aluminum carburetors = Crossflow.

Six plastic carburetors = Loop Charged.
 

rmilford

Cadet
Joined
May 6, 2013
Messages
12
Re: Cross-Flow or Loop-Charged?

Thought so ... wanted to be sure ... Got it off and wanted to make sure before I bolted it back on :)

Thanks a bunch
 

rmilford

Cadet
Joined
May 6, 2013
Messages
12
Re: Cross-Flow or Loop-Charged?

Duh ... I went back and read the reply ... Said in neutral :facepalm:
 
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