overheat

Irondog · 07-02-2018, 07:31 AM

Any ideas why passenger side head is getting hotter than the other. Temp gauge goes through the roof at the end of the track. we've had head of and compression checks on all cylinders and pressure tested cooling system. checked water pump everything is fine....

pmrphil · 07-02-2018, 08:12 AM

I had a customer with a small block Ford that "cooked" just one head, turned out his "new" water pump was to blame - changed the pump (and nothing else) after repairing the head (yes, the head gasket was oriented correctly) and the problem was gone.

GTX JOHN · 07-02-2018, 04:59 PM

What engine combo?

brett3533 · 07-02-2018, 05:44 PM

water pump not running the flow the proper way ? does your combination have reverse flow such as later model engines and fords do need to the reverse the polarity on water pumps sometimes so they run backwards

Rory McNeil · 07-02-2018, 06:19 PM

If its a small block Ford, both standard and reverse rotation water pumps were used. The cars with V belts uswed standard rotation water pumps, when the 79 Mustangs & Capris debuted, the 302 (5.0L) V8 was equipped with a single serpentine belt system, which used the reverse roation pump. However, other Ford during that period of time,(PU trucks, vans, Fairmont/Zephyr, Granda etc) retained the V belts and standard rotation water pumps.

Lew Silverman · 07-02-2018, 11:41 PM

Just one question -

Was this something that just started happening on a engine that was cooling properly? If this is a brand new combo, and you've already disassembled it (to check for the wrong head gasket, etc) and you're sure that, as others have noted, your water pump is rotating in the right direction, could you swap cylinder heads from side to side and see whether or not the problem follows? Could be nothing more than a blocked passage in the head not allowing proper coolant flow.

Hope you find your problem!

gsa612 · 07-03-2018, 10:44 AM

Irondog,if you can post the make of car.Your pictures show a 1st and 3rd gen.Camaro.I had a CSR w/pump and the impeller was turning on the shaft,not moving the coolant.Take off the cap and see if the water is circulating. gsa612

07-02-2018, 07:31 AM	#1
Irondog Member Join Date: Mar 2009 Location: Wilmot, NS Posts: 138 Likes: 12 Liked 7 Times in 5 Posts	overheat Any ideas why passenger side head is getting hotter than the other. Temp gauge goes through the roof at the end of the track. we've had head of and compression checks on all cylinders and pressure tested cooling system. checked water pump everything is fine....

07-02-2018, 08:12 AM	#2
pmrphil Member Join Date: Aug 2010 Location: CT Posts: 460 Likes: 1,811 Liked 348 Times in 152 Posts	Re: overheat I had a customer with a small block Ford that "cooked" just one head, turned out his "new" water pump was to blame - changed the pump (and nothing else) after repairing the head (yes, the head gasket was oriented correctly) and the problem was gone. __________________ Phil Molski PMR Performance S/C 1623

07-02-2018, 04:59 PM	#3
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,733 Likes: 2,803 Liked 2,486 Times in 697 Posts	Re: overheat What engine combo? __________________ John Irving 741 Stock 741 Super Stock

07-02-2018, 05:44 PM	#4
brett3533 Member Join Date: Jan 2007 Location: maysville Posts: 120 Likes: 15 Liked 47 Times in 14 Posts	Re: overheat water pump not running the flow the proper way ? does your combination have reverse flow such as later model engines and fords do need to the reverse the polarity on water pumps sometimes so they run backwards __________________ Brett McFarland A/S

07-02-2018, 06:19 PM	#5
Rory McNeil VIP Member Join Date: Jun 2007 Location: from Vancouver BC Canada, now in Nova Scotia Posts: 1,311 Likes: 317 Liked 1,104 Times in 302 Posts	Re: overheat If its a small block Ford, both standard and reverse rotation water pumps were used. The cars with V belts uswed standard rotation water pumps, when the 79 Mustangs & Capris debuted, the 302 (5.0L) V8 was equipped with a single serpentine belt system, which used the reverse roation pump. However, other Ford during that period of time,(PU trucks, vans, Fairmont/Zephyr, Granda etc) retained the V belts and standard rotation water pumps. __________________ NHRA 6390 STK M/S 85 Mustang

07-02-2018, 11:41 PM	#6
Lew Silverman VIP Member Join Date: Mar 2010 Location: Newport News, VA Posts: 1,435 Likes: 371 Liked 129 Times in 59 Posts	Re: overheat Just one question - Was this something that just started happening on a engine that was cooling properly? If this is a brand new combo, and you've already disassembled it (to check for the wrong head gasket, etc) and you're sure that, as others have noted, your water pump is rotating in the right direction, could you swap cylinder heads from side to side and see whether or not the problem follows? Could be nothing more than a blocked passage in the head not allowing proper coolant flow. Hope you find your problem! __________________ Lew Silverman #2070 "The Wagon Master" N/SA

07-03-2018, 10:44 AM	#7
gsa612 Senior Member Join Date: Jan 2008 Location: 100th Meridian Posts: 569 Likes: 116 Liked 280 Times in 139 Posts	Re: overheat Irondog,if you can post the make of car.Your pictures show a 1st and 3rd gen.Camaro.I had a CSR w/pump and the impeller was turning on the shaft,not moving the coolant.Take off the cap and see if the water is circulating. gsa612 Last edited by gsa612; 07-03-2018 at 02:18 PM. Reason: txpo.