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Bulltear serpentine for CJ7 |
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White70JavelinSST 
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Joined: Aug/08/2012 Location: Minnesota Status: Offline Points: 4866 |
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 Posted: Apr/14/2021 at 11:40am |
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Might be an OK kit, if you don't have AC and don't mind having two belts.
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70 Javelin SST, second owner, purchased 1972
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74Bubblefender
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Charter Member Joined: Jun/29/2007 Location: The AMC form Status: Offline Points: 2589 |
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Posted: Apr/14/2021 at 12:26pm |
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2 belts...good lord why
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We are just about to forge new AMC V8 crankshafts.. please check here
http://www.bulltear.com/forums/showthread.php?19564 |
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i6cj7
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Joined: Feb/20/2018 Location: virginia Status: Offline Points: 138 |
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Posted: Apr/14/2021 at 1:28pm |
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That kit looks nice, at least it comes with all the brackets. Course i guess you're losing an inch of space up front with that extra belt off the crank pulley.
Hm says it uses the keyway power steering pump though. Something else to buy.. Edited by i6cj7 - Apr/14/2021 at 1:33pm |
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mstrcrftr
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Joined: Jul/12/2010 Location: houston Status: Offline Points: 2066 |
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Posted: Apr/14/2021 at 1:30pm |
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I also attempted to use that serpentine system from bulltear.. i spent days aligning all of the pulleys using a laser. Dropped the engine into the car and got it started.. had issues from day one. I kept trying to re-align pulleys.. I drove the car and stomped on it (6500 total rpm), immediately threw the belt.. this happened 5 times.. went thru 3 belts.. I found out that the idler pulleys were machined wrong for the bearings being used.. the pulley would move around on the bearings allowing the belt to slip off the pulley. I had to use high speed slow motion video to find it. I ended up going back to the v-belts and havent had a problem since.
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sweatlock
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Joined: Apr/28/2014 Location: Largo, FL Status: Offline Points: 3313 |
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Posted: Apr/14/2021 at 1:49pm |
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Having one serpentine belt is a double-edged sword; one belt pops and you’re done vs. a v-belt system that, depending on which belt pops, you may still be able to get home or to a ‘McParts’ store, lol. To me, the main advantage of a serpentine belt system is the self-tensioner and the elimination of the need to maintain and tighten multiple v-belts. If a system doesn’t incorporate a self-tensioner I don’t really see the point and I’d personally stick with the v-belts.
Edited by sweatlock - Apr/14/2021 at 1:51pm |
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motorhead_1
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Joined: Apr/16/2014 Location: AZ Status: Offline Points: 1006 |
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Posted: Apr/14/2021 at 2:14pm |
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i used the bulltear serp kit with ac on my concord v8. no problems/complaints here.
used a gm pwr steering puller/installer IIRC.
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69 SC/Rambler tribute 401/th400, 68 Rebel SST LSA, 66 F100 460/c6, 88 Merkur Xr4Ti, 71 Jaguar XJ6 LS1, 08 Supercharged Tundra
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rang-a-stang
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Joined: Sep/25/2018 Location: Camarillo, CA Status: Offline Points: 272 |
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Posted: Apr/14/2021 at 3:30pm |
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I bought the kit in about 2018 but I have no idea what year the guy I bought it from bought it. He has since passed away so I can't ask him either. I would guess it was at least 5 years old when I got it. Mine had 3 holes on the bottom of the alt bracket for alts but nowadays there is a slot. Not sure when that transition happened but that might date my system.
The thing that is nice about the Bulltear kit is it is much more subtle; The look of the Bulltear is great (would be even better if you could get black powder coat or black anodized). I love that the only bracket they provide is tucked down low and kinda hidden. That Summit kit is sooo 'in your face'. A little too blingin' for me at least.
The Bulltear kit moves your A/C pump and alt forward about 1/2 an inch but the water pump and power steering pump stay in their stock location. The crank pulley is about the same, too so you do not lose space between the engine and Radiator. I understand this kit is not really a fix for you but if anyone else is thinking about this kit, FYI.
Yep. Exactly right. When my alt died a fews weeks ago, the belt popped off and I also lost power steering and cooling which was a real problem since I was sitting in a turn lane, red light, waiting to make a U-Turn. My temp climbed pretty quickly and making a U-Turn with 33" tall tires under a 4500# Jeep with no power steering SUCKED. I have a spare belt and idler in my travel kit because I see those as two failure points that could strand me for a while. I have considered trying to fit a tensioner but now that it's running and pretty low maintenance, I don't want to poke the beast.
So my A/C pump lays flat, I wonder if mine sucks because of that? Can you see your timing marks no problem?
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79 Cherokee, 401
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74Bubblefender
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Posted: Apr/14/2021 at 4:37pm |
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The idler wheels have 2 bearings C-clipped in with a shoulder bolt that holds the bearing centers tight on a stainless spacer. The wheel cannot physically move on the bearings even if the machining was wrong there is not more than .015" of movement. I designed it so in case of running excessive temps the wheel could not move on the bearings. There must have been something else drastically wrong with your install. A tilted misalignment maybe or a missing C clip
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We are just about to forge new AMC V8 crankshafts.. please check here
http://www.bulltear.com/forums/showthread.php?19564 |
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74Bubblefender
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Charter Member Joined: Jun/29/2007 Location: The AMC form Status: Offline Points: 2589 |
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Posted: Apr/14/2021 at 4:40pm |
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100% sorry some of you folks had a hard time with our serpentine system. I engineered it so my father would have something to do in his retirement. It took 8 years and 2600 kits before he actually took it over in 2014. I think of all the kits that are out there installed and only 5 or 6 have ever had a complaint about them. The very first one and 5 others since. To date I am not sure why. I think we have only ever sold 10-12 replacement idler wheels and bearings. |
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We are just about to forge new AMC V8 crankshafts.. please check here
http://www.bulltear.com/forums/showthread.php?19564 |
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i6cj7
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Joined: Feb/20/2018 Location: virginia Status: Offline Points: 138 |
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Posted: May/09/2021 at 12:15am |
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Why were you saying NOT to use a CS144 based alternator?
Also which is better a 1 wire or 3 wire? I think my 84 CJ7 had 3 wires off the alternator but I'm not sure.
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Mopar_guy wrote: