doubleclutchinweasel Posted July 15, 2014 Share Posted July 15, 2014 Is this correct for my old 1970 R600?Upper cab mounts - 20QL250Lower cab mounts - 20QL1144Same on all 4 points.Anybody got the numbers for the radiator mounts? Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/ Share on other sites More sharing options...
j hancock Posted July 15, 2014 Share Posted July 15, 2014 Cab mount numbers look correct. My mind is fuzzy but I thought the lower cab mount was the radiator mount number? Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-252934 Share on other sites More sharing options...
doubleclutchinweasel Posted July 15, 2014 Author Share Posted July 15, 2014 Idunno. Still searching... Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-252967 Share on other sites More sharing options...
doubleclutchinweasel Posted July 16, 2014 Author Share Posted July 16, 2014 Do the numbers 20QL231P5 or 20QL295A mean anything to anybody?They are listed as "radiator mounts", but no specifics are given.Still searching... Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-253108 Share on other sites More sharing options...
j hancock Posted July 16, 2014 Share Posted July 16, 2014 Energy Suspension list them as for the radiator but no real break down on size.Maybe the listed pictures of each might give you a comparison.http://www.energysuspensionxd.com/media1/2013%20HD%20Catalog_WEB_med.pdf Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-253111 Share on other sites More sharing options...
doubleclutchinweasel Posted July 16, 2014 Author Share Posted July 16, 2014 Energy Suspension list them as for the radiator but no real break down on size.Maybe the listed pictures of each might give you a comparison.http://www.energysuspensionxd.com/media1/2013%20HD%20Catalog_WEB_med.pdfYeah. That's the website I was looking at.Had to change a $#@&$#@ flat tire this evening. Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-253129 Share on other sites More sharing options...
doubleclutchinweasel Posted July 18, 2014 Author Share Posted July 18, 2014 Okay. According to all my research, & even Mack, the cab mounts are as follows:Upper - 20QL250Lower - 20QL1144Radiator - 20QL231P9There are several aftermarket versions as well (PAI, BWP-NSI, Rubber, Urethane, blah-blah-blah). Not sure if any are better than the others. Opinions or experiences?Also, is there an easy way to lift the cab and radiator enough to change the bushings without taking the thing completely apart?The Mack-given radiator mounts appear to just go in from the top, & are 1-piece. The current ones look like there are 2 pieces. Maybe the bottom flares out when they're tightened? See first picture.Think the cab mounts are due?!!! See other pictures. Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-253251 Share on other sites More sharing options...
Maddog13407 Posted July 22, 2014 Share Posted July 22, 2014 yup looks like the cab mounts are due. don't overtighten them when you put them back in. the bolt should be just tight enough so the bottom rubber bulges out like the one in your one picture. I think the radiators are one piece. cant remember now, been a while. the R models are a lot more forgiving. most B models I have worked on always had shims on one or all cab mounts to get the hood to fit the cowl right. Quote Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-253685 Share on other sites More sharing options...
doubleclutchinweasel Posted July 23, 2014 Author Share Posted July 23, 2014 yup looks like the cab mounts are due. don't overtighten them when you put them back in. the bolt should the just tight enough both bottom rubber bulges out like the one in your picture. I think the radiators are one piece. cant remember now, been a while. the R models are a lot more forgiving. most B models I have worked on always had shims on one or all cab mounts to get the hood to fit the cowl right.Yep. The manual gives a torque spec. But I think I like your suggestion better. The book also mentions shimming the cab as needed to align it with the hood.Stuff should be here by the weekend. Hope to get a start on it at least. Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-253717 Share on other sites More sharing options...
doubleclutchinweasel Posted July 24, 2014 Author Share Posted July 24, 2014 2 down, & 2 to go...Left one literally took 10 minutes. Right one took an hour, because the sleeve in the old mount was stuck to the bolt. Had to cut the rubber off and grind the sleeve in two to get it off. After that, 10 minutes.For lack of a better plan, I re-used the same flat washer count that came out of it.Maybe I can do the rears this weekend.Think I'll replace the bolts, too. That should be easy now that they're clean.Oh, and the uppers were, indeed, 20QL250 and the lowers 20QL1144, just in case anybody else needs to do theirs.These are actually the BWP-NSI parts (MA9R & MA9O, respectively), ordered through FinditParts, and shipped directly from BWP in Missouri. Good prices, quick delivery. 1 Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-253927 Share on other sites More sharing options...
doubleclutchinweasel Posted July 26, 2014 Author Share Posted July 26, 2014 Changed the rears out this morning. Same deal; one came apart easily, and the other one had to be cut off!New bolts on the fronts. A little anti-seize between the bolts and sleeves. Let's call it done! Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-254060 Share on other sites More sharing options...
j hancock Posted July 26, 2014 Share Posted July 26, 2014 Nicely done!File the old mounts in the category of used and abused. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-254061 Share on other sites More sharing options...
MACKS Posted July 27, 2014 Share Posted July 27, 2014 Nice,your going to be pleasantly surprised with a much better ride and even quieter cab. Quote Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-254112 Share on other sites More sharing options...
Maddog13407 Posted July 27, 2014 Share Posted July 27, 2014 not much of a better ride. its still a Mack.'' got a dog on the hood, it dont ride good..'' Quote Link to comment https://www.bigmacktrucks.com/topic/36358-cab-mounts/#findComment-254116 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.