Uneven cooling question

[whitennerdy]

I just rebuilt my 1978 115 Johnson v-4 crossflow outboard, new pistons, cylinders honed, carb kits, t-stats, gaskets, water pump, etc. and started it on the earmuffs on 25:1 fuel oil mix. It ran well at idle and fast idle with a good stream out the tell tale but the left hand bank of cylinders when facing the back of the boat was noticeably hotter to the touch. The right bank got warm but the left was hot. I could hold my hand on the left bank but it was definitely hotter. At high idle both holes on the lower unit had a little warm water flowing from them. Any ideas on if this is normal or where I went wrong?

 

[durban]

Re: Uneven cooling question

in your case i would go PLAN B

 

[Faztbullet]

Re: Uneven cooling question

You did reinstall the t-stats and poppets the correct way?

 

[boobie]

Re: Uneven cooling question

Did you replace the water deflectors in the block when you had it apart ??

 

[danoutbard]

Re: Uneven cooling question

Had the same issue on my 90 Crossflow...
Cyl 2 & 4 where reverse in the process :facepalm:
Good luck

 

[whitennerdy]

Re: Uneven cooling question

Had the same issue on my 90 Crossflow...
Cyl 2 & 4 where reverse in the process :facepalm:
Good luck

The thermostats and poppets went in the way it showed in the seloc manual. The motor was originally on a junk bassboat i bought for the trailer and hardware for a plywood boat i just finished. On the maiden voyage it was clearly not running up to snuff and comp test revealed 120 psi in all cyl. except #1 which was 60. I tore it down and found only one ring left and several other broken ones in other cyl. I don't know what you mean by water deflectors so that may be my problem. I do know the motor has had some questionable work in the past since one carb was totally missing the float needle. Whats the water deflector and where is it located? Thanks so much for the help, Id like to get on the water and enjoy it before it all evaporates here in Indiana!