130 john overheating

[muskrat]

installed new w/p kit & thermostats,test run heats up at higher speeds.shot both cyl heads with temp gun after over heat alarm went off port side 180f,starboard 170f.remove gear case & double check water pump every looks ok.<br />model #j130txeo w/p # 5001595.

 

[ob]

Re: 130 john overheating

Getting any flow out of the exhaust reliefs at speed?Tell/tale stream solid at speed?

 

[seahorse5]

Re: 130 john overheating

are there any thru-hull fittings, transducers, or speedo pickups within 14" of the motor's centerline or within 3' forward of the motor?<br /><br />If so, those can disturb the water flow to the intake screens on the gearcase?

 

[rodbolt]

Re: 130 john overheating

was it overheating before the pump kit install ?

 

[muskrat]

Re: 130 john overheating

ob-will check ex reliefs,tell/tale solid at all speed does get warm when it hot,no bubbles in stream.<br />seahorse-will double check did see anything at first.<br />rod-no it didnt the cus said,bought boat last winter,going to double parts installed with a new kit..

 

[rodbolt]

Re: 130 john overheating

if in fact it was not overheating, and its a story I get a lot. check the t-stats and double check the pump kit is the correct part# for the model number.<br /> if all is correct its time to remove the heads and check for sand or mud.

 

[muskrat]

Re: 130 john overheating

found trouble-heres a good one old service bulletin.thermo spring collaping.installed new cover & spring motor ran great.