thekid1950 Posted December 26, 2018 Report Posted December 26, 2018 I'm replacing radiator with an aluminum unit. The core is a little too thick & the stock fan touches the radiator. I either need to return the radiator & get a thinner one or I need to find an aftermarket fan that will fit. Most aftermarket fans will work nicely providing even more blades.....BUT I can't find one with a hole large enough to fit the water pump shaft. All comments will be appreciated. Thanks...Merry Christmas Quote
knuckleharley Posted December 26, 2018 Report Posted December 26, 2018 Why can't you just bolt your new radiator to the front surface of the sheet metal instead of the rear surface,and use spacers or washers to space the radiator forward enough for clearance? Quote
thekid1950 Posted December 26, 2018 Author Report Posted December 26, 2018 Because there is a brace in the way. Just in front of the top tank, there is a brace that goes from side to side. This brace prevents moving the radiator forward. I could trim the brace about .25" which might allow mounting the radiator on the grill side of the mounting bracket. That might be a solution. Quote
Young Ed Posted December 26, 2018 Report Posted December 26, 2018 Is this radiator supposed to fit or is it a generic? If it supposed to fit I'd investigate the water pump. You might have the fan mount not pressed on quite enough Quote
thekid1950 Posted December 26, 2018 Author Report Posted December 26, 2018 The radiator is supposed to fit....It's a CHAMPION 3 row........maybe I should have gone with a 2 row. The water pump is new & matches the old one. I think it's correct. The water pump hub is pressed on correctly...maybe a 1/16" clearance to the water pump housing. The hub is 1 1/8" in diameter. Modern fan blades come with a much smaller hole. Quote
kencombs Posted December 26, 2018 Report Posted December 26, 2018 Can you press the pump fan hub off? If so turn it down to fit the fan you wish to use. If not, most can be mounted on the front side of the support. Real common for those folks that change to a 25" block. Quote
DJ194950 Posted December 26, 2018 Report Posted December 26, 2018 What the # on that Champion radiator?? I used a three row Champion on my 50 4dr. Plymouth (supposedly the same as 49) and it's tight but clears the stock fan fine. How's the condition of the motors mounts front and back?? DJ Quote
thekid1950 Posted December 28, 2018 Author Report Posted December 28, 2018 i solved my problem. i cut the horizonal brace in front of the radiator. Had to cut 1" x .25" on both sides. Now the radiator is mounted within the U channel radiator bracket thus moving the radiator forward about .50" The fan now has adequete clearance. Thank you for all the replies. Quote
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