Bought Mack RD688s 2:18 Fixing over heating and boost problem 8:12 Fixing hydraulic hoses 11:10 Greasing 11:40 First dumpster pickup 14:34 Testing Jake brakes on steep hill
We always said "driving a mack truck is like dating a big girl, it's OK but you don't brag about it" We had half a dozen of those RD macks 15 years ago. They were fairly reliable trucks but always needed little things. I can't imagine maintaining them now.
The rule of thumb is: "There is never just 1 cockroach". Translation: If 1 rubber hose is bad they all are. You never replace just 1, you replace all of them. Otherwise you'll be on the side of the road, AGAIN!
My old 79 F model was bullet proof. Also drove a 68 RD that was super tough. Bought a 92 CH613 that was junk from day one! Not sure when Renault bought out Mack. That was the begining of the end of the quality control.
That coolant line is very well known for failing. Keep one in the cab at all times and change your belts once a year. Been driving macks for 30 years. All known failure points. There is also a line that bridges the 2 heads. It's between the valve covers in the center. That lines gets lose sometimes. Keep an eye on it. It can also root out. It's pita to tighten.
Dave,how many trucks do you own,I asked a question about how much you're road fund license cost,in the UK it could be upwards of $300-$400 per truck each year,great content keep safe and prosper re yards🏴🇬🇧
When you were going downhill in the Mac, you kept it in one gear, what you Gotta do is start downshifting at the crest of the hill and slowly downshift down ship and downshift by the time you get to that stop sign you would’ve been in low gear without even touching the brakes I can teach you how to drive a truck.
@@Dumpster_Dave I hear ya I have a T8 140 loaded I can make that truck stop I’m a dime by downshifting and downshifting going down the hill never touch the break by time I hit the stop sign I’m already in low gear not to brag, but I’ve been driving these trucks for 35 years.
