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Everything posted by Vladislav
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R model courtesy light toggle on top of dash
Vladislav replied to Lmackattack's topic in Electrical, Electronics and Lighting
Ok, googled 1MR3380 and it crosses to PAI MSW-4378. -
R model courtesy light toggle on top of dash
Vladislav replied to Lmackattack's topic in Electrical, Electronics and Lighting
Rob, Yes, that top left toggle switch with a longer stick was the 1st thing I got on my mind but I thought I figured that wrong since I knew it was for blinking by high beam. And had no idea it also does anything to the marker lights (and I still don't understand the reason to do that). Are you sure that PAI unit you mentioned is that longer handle one? More seemed to me it's another toggle swich which is located aside to the main one to switch the dash lights. That one has two positions - on and off. -
Very sad to hear. To difficult to choose words for such a case. Unfortunately we all are guests in this world and at a sertain moment the time comes to everyone. Good to a person if he or she was honest going over the life and there are people who are thankful for the things the person has done for them. Rest In Peace.
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Front Hub Caps
Vladislav replied to h67st's topic in Antique and Classic Mack Trucks General Discussion
The main hub bodies you have look in a quite good shape. Those Stemco 5 hole rims were also avalible new but I don't have the part# handy. -
1940 NM 6x6 for sale
Vladislav replied to cncFireman's topic in Antique and Classic Mack Trucks General Discussion
In fact it took me 19 hours to get to the show. Many thanks for sharing. -
1940 NM 6x6 for sale
Vladislav replied to cncFireman's topic in Antique and Classic Mack Trucks General Discussion
Wow! A closed cab, early one! Drool, drool, drool!! Unfortunately I'm not ready to put my dogs in the fight. Already have a complete NM for 7 years now and couldn't get myself to start restoring it. The one in the add has a reasonable price tag on my mind. -
R model courtesy light toggle on top of dash
Vladislav replied to Lmackattack's topic in Electrical, Electronics and Lighting
PAI MSW-4378 switch is described as 2 positions and 6 connectors. Pretty sure the main light switch in an R-model is 3 position unit. It put headlights in operation when flipped up and probably park lights only when down. -
Mack that built the Hoover Dam
Vladislav replied to cncFireman's topic in Antique and Classic Mack Trucks General Discussion
One interesting article indeed. Thanks for sharing. -
Cab Mount Bushings
Vladislav replied to h67st's topic in Antique and Classic Mack Trucks General Discussion
My resto experience gives me idea to prevent any potential rust since it can easily show up even before a project is finished -
Mack r hood hinges
Vladislav replied to 1988 R model's topic in Exterior, Cab, Accessories and Detailing
1988 should have a steel hinge plate with a tube welded to put 3/4" bolt is as an axle and a bolled "rod end" which comes into the chassis bracket with its stud. From my experience I suppose you will need a new Grade 5 bolt of the required length with nut since it usually gets worn in the middle and that ball joint which is known as Aurora bearing and could be found. My copybook tells me I looked for Aurora MM-12 with 3/4 bore and 3/4-16 RH thread (and that's right) but I remember I ended up with a similar part (or exactly that one?) which had a grease nippel as an option. -
Cab Mount Bushings
Vladislav replied to h67st's topic in Antique and Classic Mack Trucks General Discussion
Nice job! How about to drill a hole and add a grease nippel to its end? -
waking her up in the cold
Vladislav replied to Lmackattack's topic in Antique and Classic Mack Trucks General Discussion
Trent, if you once find another such one with double cut outs and better somewhere coast sidey please let me know. -
1974 RS755LST
Vladislav replied to 1693MackGuy's topic in Antique and Classic Mack Trucks General Discussion
Sometimes it happens. Probably you have to pre-rotate them and than upload. I don't have such issue since I use computer, not a phone. RS are nice trucks. Vlad -
Those panels on Eastern and Western R's are completely different. Eastern ones are MUCH longer and I"m afraid (not sure) are less of the higth (narrower). Also Western parts were made of alu and had surface stamped by leaned lines which cross each other. Eastern panels were different as I said but what's important (to Eastern R owners) they were at least 3 (known to me) styles. Early ones were alu with four (some with six) holes for screws in the corners. The surface was of horizontal stamped lines combining polished and ground (sand-scratched) areas. Those were installed (as I could figure) on early hoods on non-CMAC trucks. The trucks with aircooler (longer hoods) purchased newer panels which were made of stainless steel. The same general design but as I was told by some owners of early R's those newer panels were less in size and didn't fit early hood opening really good. But that's not the end of the list. Later panels were of two different styles too. If you look at pics of Eastern R's you can notice some trucks had framings over the headlight openings in the hood and some didn't. I can't state those parts were installed from/to a sertain production year, more seem to me as an alternative factory option. Nevermind. The panels were different. Those which were used with no framings had four screw holes in the corners. And those which were supposed to be combined with frames had a sticking end at one side (toward the grill) to be slicked in below the framing and two screws in the corners at the outer side. And that is the style (and probably the only one) which you can currently purchase new. They're made by PAI and could be found on ebay etc. Part ## are FPA-5774 for the LH (with a square hole for pre-heater socket) and FPA-5773 for the RH (looking from driving direction) with no hole and you can use on the both sides if no heater to be installed. There's an issue if you're going to use those panels on a hood with no framings (as I did). First you need to cut off that sticking area. Than you find the two holes in the corners at the outer side don't correspond with ones in the hood. Seems like new holes were designed the screws to get into the framing not straight to the hood. And if you try to just put screws they get into the headlight opening not the fiberglass. So some kind of offset plates are needed to be made. And you sure need two more holes to drill at the grill side too.
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waking her up in the cold
Vladislav replied to Lmackattack's topic in Antique and Classic Mack Trucks General Discussion
I always liked the look of your truck. One of my favorite RS. The headlights are fine on the pictures. Good luck on the upcoming show season! -
Welcome to the site! As said above we like to see the pictures, that's true. Vlad
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B steering column
Vladislav replied to Hobert62's topic in Antique and Classic Mack Trucks General Discussion
Larry, please explain me one thing. Do you have the Air o Matic in operation all the time when you drive or switch it on only when you need it such as parking lot maneuvering and so on? -
B steering column
Vladislav replied to Hobert62's topic in Antique and Classic Mack Trucks General Discussion
I never put my hands on a truck power steering gear so far but I have a couple of points to put in. 1st. Once patiently stydieing description of design of Mercedes G-class steering gear which is too close to what was used on some Russian trucks of mid 60's I found interesting nuance about pressures. The matter was when you steered you activated some pressure in the box which was applied to a piston which moves Pitman arm shaft by some way to turn wheels. It's clear the harder the wheels to move at the time the more pressure you needed. Using that effect that pressure was also provided to some another part (piston or its area?) in the box so when you turn the steering wheel you have to put force against it. Telling different words the resistence of the steering wheel you felt as a "road feeling" was in fact not any force reacted from the road but a force simulated in the steering gearbox specially for the feeling. Sure there was a corellation but those forces were not the same thing. And taking that to account the matter of "blind" steering with some power setup could be in that very wrong design of the unit. 2nd. Once I looked over design of early KrAZ truck powersteering which was an air assist I noted it had a power cylinder at the right of the truck and a drag link with a valve assembly at the left attached to a mechanical gear. Pretty sure I saw something similar on Western RL-model Mack but with hydraulic cylinder not air. Nevermind. The function of the system is you turn the wheel in the cab you move the drag link and there are control valves which are spring loaded by some way. If you drive down a highway or steer on ice just a few resistance goes from front wheels so valve springs don't compress enough to open valves. This means the power cylinder doesn't get any pressure so doesn't effect wheels to steer at all. And you steer just like (and in fact by) mechanical gear. As greater resistace to steer the road gives you the more force you have to apply to the sterring wheel. At certain point the force gets to the level of the valve spring to compress so valve opens supplying oil to the power cylinder and it helps. As long as you continue steering or even doing it faster the greater pressure gets to the assistance. If you stop sterring the valve spring looses application, depresses and closes the valve. What's interesting to us in that is an integrated power steering gear also has valves iside. And also has springs in those valves. Othervise it just couldn't figure when to start to assist. Mercedes G-model gear has them I know. So way to correct a power steering feeling is to play with the valve spring hardness. And not with fluid pressure or volume. Worth to admitt a man should be careful tuning a power steering. Since if you put settings wrong your wheels could start turning themself at some time. And they wouldn't mind you're standing parked or doing 60MPH down a highway. -
Don't want to be involved into political conversation much but that story is not an event that cheers me up.
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Interesting story. What happened to the truck? Do you still own it? Seems much rarer than an avarage Superliner
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In fact you can get them from Watts newly reproduced for $50 apiece any time which seems quite reasonable if you really need perfect ones for your truck. Watts made a really good job offering the most of the line of B-model emblems such as B-61, B-67, B-73 etc.
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Tom, thank you for posting the beauties! I saw that B-model parked outside at the back yard behind the main museum building when visited the place in 2018. But EHU is almost new to me and seems extremely rare being E-cabover and integral sleeper at the same time. Looks nicely done from what I can see on the picture. Happy New Year to you and Zina!
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Who designed/styled the Superliner?
Vladislav replied to sodly's topic in Antique and Classic Mack Trucks General Discussion
Would be (damn) interesting to learn what NZ Superliner II used of the chassis. The hood on your 2nd photo looks definitely of American style. And the battery box with air tank attached to also points to the US style RW chassis.
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