Doing the same thing this week. Got a Siemans PM102 motor from ABC Auto parts for $22. I almost made the mistake of buying one with the same motor except the shaft was 1/2" longer. Anyone doing this be sure to measure.
That's a great post. Thanks for taking the time and sharing it with us. Looking forward getting it done in mine now....even though it is 100 degrees. Winter will be coming, and nice to know I can get that heat movin' on through the cab.
'85 CJ-7 258 w/Hedman hedders, DUI ign, 2.5" cat/exhaust, Weber 32/36, T-176, Dana 300, Powertrax locker, 32/11.50 muds, Skyjacker 2.5" suspension, Warn 9500HS - a hunter, not a crawler
If you take the passenger side seat out, you'll have more room and you'll be grateful for it.
Also, check the fit of the hole after you enlarge it for the blower motor to make sure it fits correctly before you put the blower motor back in the heater assembly.
[COLOR=DarkGreen][FONT=Century Gothic]All the Jeeps I've owned
79 CJ5 258 six with a weber (current vehicle) T18/Dana20
81 CJ5 258 six (driven out of Alaska thru Canada in winter with a softtop)
75 Jeep Wagoneer 360V8
79 Jeep Cherokee 258 six
I replaced my blower motor with one out of a YJ, I too had to enlarge the opening in the firewall, but now my defroster is like a leaf blower. Now all I need is a larger alternator to power it at full blast.
2000 Cherokee, 3" lift 31" BFG ATs, custom bumpers with Warn 9000I, more to come....
Does anyone have any pics of the cable routing? I did my YJ tub swap last year and finally replaced the YJ heater for my old CJ one (with blower upgrade) this past weekend. I have the defrost cable hooked up but there is a small triangular bracket/pivot with a cable going into the heater box and I don't know where it bolts to.
The Chevy blower motor has a cooling vent hole for the motor while the Jeep motor does not. I assume you must seal this hole to keep water and debris out. Does this cause any problem with the life of the motor? Thanks.