Post by roofgunner on Oct 22, 2017 15:00:30 GMT -5
I need some advice on what to do regarding the fan for my car. I purchased a Fan Clutch, Thermal 1967-72 400/455 22049 OPGI #CH25855 and the fan 18' 17118 that goes with it. My radiator is 2.68 inches thick. The car is a 65 Olds Cutlass that had a 330 inch motor. I have the plastic 442 shroud that fits. The radiator was enlarged and I think it's five row or four. The engine is a 425 block (468 cid). The water pump is the shortest one.
The problem is that if I would put the fan clutch on the end of the pully the clutch runs into the radiator. I tried the original fan that was on the 330 and held it up to the pully and there is enough clearance. I have not yet investigated with came on a 65 442 with or without AC as far as fan clutches or the size of the radiator. I looks like I will have to for go the idea of a fan clutch.
So if anyone who's "been there done that" I would appreciate it.
Post by roofgunner on Oct 22, 2017 16:02:19 GMT -5
I did some research since I made the post. First of all the part number and catalog numbers and the number on the USMW box don't coincide with each other. Then I went to the USMW website where I entered my part number and after entering that they showed where the dimensions were and they don't match the part I have. I will be on the phone tomorrow. I also looked further in the build sheet and the cars did have fan clutches. So stand by and I will get the wind on this!!!
Post by joepadavano on Oct 27, 2017 7:51:26 GMT -5
To be honest, I'm not sure why you'd get a part like that from OPGI anyway. RockAuto sells the same fan clutches for about half that price. Also, CH25855 is shown as a GTO clutch with 3.65" overall height. The correct clutch for a 1965 Olds 330 motor is 3.09" overall height.
I went to Rock Auto and got a Hayden 2947($61.88 to my door and it came fast) and returned the other clutch and I called Hayden and I called USMW. USMW makes only one fan clutch that is about 3/4 in shorter. The guy was nice enough to refer me to Hayden because he said they have the shortest one 2947. The Hayden people were nice and turned me on to the 2947. OPGI gave me a refund.
So I have all this installed and it's a PIA to get that fan clutch unit onto the water pump but I did it. The fan is the Derele 17118. At one point on the shroud (it's the large plastic one made by the fellow in Florida) there is slightly(1/8 in) less than the 3/4 inch clearance between the shroud and the fan blade that they warn you about. Should I install the 17 inch fan?(17118) It is, according to the manufacturer 3/4 of an inch less in diameter than the 18 inch. I've got 468 CID (no AC) to chill.