jzack
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Everything posted by jzack
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My batteries have been leaking fluid into the battery box for quite awhile now. I've checked the voltage at the terminals with the truck idling and I get about 14volts. Thats normal right? I also moniter my volt guage throughout the day and it never reads over 14volts so I don't think they're being overcharged. Yet Batteries Plus where I bought them seems to think the only reason for a battery to leak is over-charging so they won't warranty them. Maybe the caps just aren't sealing properly. Any ideas anyone? Thanks Jeff
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Which Shifter Knob Is Proper For My Truck?
jzack replied to Rob's topic in Exterior, Cab, Accessories and Detailing
I grew up in my Dad's 79 Superliner with a 300+ and Eaton 13sp that had the pull-up style range selecter. Jeff -
Thanks Mackpro
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Mackdog- Thanks for the tip. I might try wiring in a switch if I cant find the root problem. I've been driving this truck since it was new and I know I used to be able to set idle with the buzzer on. Nice looking wrecker! rw613- I'll try replacing the switch. Thanks!
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A few months ago I could no longer set-up my idle when my low air buzzer is on. Now recently I noticed my parking brake dummy light no longer works even with a new bulb. Could these two problems be related? I traced the bulb wire to the senser/sender under the dash above the brake pedal. There is no continuity between the tabs on the senser even with the parking brake applied. Is this good enough evidence to replace the sensor or should I check it with a mult-meter? If so what is the test procedure? Again this is a 94 CH w/v-mac1 and unfortunatly I dont have a code-checker. Any help is greatly appreciated. Thanks, Jeff.
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If you are looking to "hot-rod" your E-7 there is a place called Rochester Injector Service that sells bigger injectors and turbo kits. I've heard of some guys getting close to 600HP out of their E7's but I don't know how dependable they would be as a everyday worker. Especially grossing 140K like you are......
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Today I put some graphite-oil in every nook and cranny of my steering column and wow, that made a big difference. There is still a little howling, but now its much quieter. Thanks, Jeff.
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Thanks for the advice guys. I actually recently took the shaft out to replace both u-joints. On re-assembly I did grease all zerks and packed the slider mechanism. It's not low on PS fluid, however there is a small leak on top of the gearbox at the shaft input. I only need to add oil maybe every 2 or 3 months though. Mike- are you talking about lubing the shaft on the coloumn right below the steering wheel? Maybe I'll try that.
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Just recently my steering wheel has started howling or whining during slow turns. Used to only do it when hitting the left or right lock. Can anyone tell me what causes this and if I should be concerned? Thanks, Jeff.
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Thanks Glenn. So 4valves have more power but 2valves are indestructible. I'm assuming most recent diesels (i.e. E7) are all 4valve. Right?
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Could one of the great Mack experts on this site please explain which Mack motors came with 4v or had the 4v option. What's the difference? Is it like gas engines where the 4v is generally more efficient. I'm specifically interested in the E7's. I currently own a 94 E7 350 and am looking at a 93 E7 350 where the owner lists it as a "350 4valve". The 94 is electronic while the 93 I believe is mechanical (if that makes a difference). Any help is greatly appreciated!
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Fuel Economy
jzack replied to Warpman89's topic in Antique and Classic Mack Trucks General Discussion
94 E-7 350HP w/Blixxton module. Pulling flat-bed empty on return trips-- 7.4 MPG -
Jeff & his truck, 10th anniv..jpg
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