Gluing rearview mirrors
From : mac davis
Q: on a stock 1976 440 what is the deck height what is the rod length i have an engine which has destroyed a piston twice !! i think the rings are breaking from too high a pressure. i have heard that the piston should be within 0.040 of the head quench or squish height mine is 0.171 at tdc comments .
Replies:
From : mike simmons
hi everyone i have a 98 dodge 4x4. the steering gear seems to be leaking at the bottom gear by i thing what i think is called the pitman arm. does it get it fluid from the power steering reservoir as i see there is two hoses comming from the power steering which attach to the unit does it only use power steering fluid does the unit have to be replaced or can it be repaired i also dont see where you can repack front wheel bearings on a 4x4. are they a sealed unit i heard they are called a hub type bearing. thanks for all the help! .
From : mike simmons
well this is not a vibrator group. but as for your dodge i am pretty sure this is the right place. does it feel like a side to side vibration or up and down are your tires worn in spots you can always have your tire balance checked and your shocks checked. looks like i am plagued with the dodge vibration. its a 99 durango that vibrates between 72 - 82 mph and it will go away for 100 miles if i grease all the fittings. i thought i had it when the idler arm showed some movement. i replaced that during a thunderstorm and while i had the grease gun out hit the others. 100 miles later and back at square-one. any play i can detect now seems to be in the steering linkage. will that linkage cause the vibration i need some advice on troubleshotting each joint. i believe the bearings are shot just based on the lack of maintenance and the amount of sand it has been in. i have 53k on it and see stories all over about 10k replacements. so if the upper & lower ball joints are really the answer where can i find better replacement parts. is moog really an upgrade i dont want to replace these in 10k. thanks. .
From : mike simmons
dont void your warranty.........thats all i can say! thanks for all of the replies and no im not trying to extend my oil change intervals -- i just want to treat the engine as good as i can since i drive reasonably hard and get the rpms up a lot so i want to have something that resists breakdown better than conventional oil. by the way any new word on the kenne bell supercharger still on schedule for next month ive been holding off doing any performance mods until i see this thing in action and decide if i want to put one in mine. i had a vortec supercharger on my 96 5.9 and was rather dissapointed with the power gain or lack thereof. .
From : mac davis
unlike the engine oil which is expected to be drained relatively often the transmission oil may last the life of the vehicle tell me - why do you think transmission fluid is immune to contamination break-down and general used-up-ed-ness that every other petroleum-based product exhibits and what other petroleum-based products are you referring to. i dont know anyone that ever changed the brake or power steering fluid on any of their daily drivers. as far as engine oil it is under much greater abuse and exposure then trans fluid was in the older transmissions. it was assumed that the trans fluid and filter would last until the trans needed actual service requiring removal of the pan. my 73 fsm suggested service at 100000 with normal driving so it made little sense to put a spin-on filter or drain plug on it but that seems to no longer be the case with these new overdrive automatics. it is too bad that the manufacturers have chosen to screw the customer in order to save a little money by not making the required changes. -- if at first you dont succeed youre not cut out for skydiving .
From : mike simmons
as are the rings on a piston against the cylinder walls and yet they seem to survive these conditions very well. no they do not. in fact they wear. what keeps them working over the years is the inherent spring tension of the rings. second the tc bushing depends on pressure from the pump to force fluid onto the neck/bushing surface for lubrication. no pressure no lube bushing gets fried. in 5 seconds i doubt that. where is your proof ill wait for your proof that 5 seconds of no oil pressure on a bushing spinning at a minimum of 750 rpm causes no damage. most of us are smart enough to keep lube oil where its needed instead of debate the possible duration a bushing or bearing can last without lube oil or gamble a $1000+ unit on such folly. third assuming there is a film of oil left when its spun dry youve effectively forced air throughout the trans circuits including to all the bearings. fun huh i imagine that is also the case when they are first rebuilt and empty. not to mention that we pour a minimum of 8 quarts into it before starting it which brings the fluid level up above the center-line of the converter and thus wets the bushing well i figure filling the tc over half full before installing it lubing the neck immersing all clutches and band as well as bearings and bushings in fluid and dabbing a tacky lube on each bushing and bearing as well as filling the trans before starting it and then putting a fair amount of the same stuff in the pump itself probably helps keep it safe. all of which is quite opposite using the internals of the trans to drain itself of fluid. also with what he suggested how much air would really be forced through the trans circuits unknown i never measured it. more than i would like in a trans. unless the pump is as effective pumping air as it is pumping fluid which we both know that it is not well if the fluid isnt coming out anymore then the pump is either dry or moving air possibly both. the pressure would effectivly drop off as soon as the pan emptied out and long before the trans circuits were emptied out. lol. dont touch anyones at without having them sign a disclaimer ok true but unless you can prove that they are dry they are unlikley to be damaged. lol again make them sign a disclaimer. in park you arent pumping a damn thing out of that trans. oh really why not because in park the pump isnt circulating fluid. you ought to know that having answered a couple of the morning sickness questions on the ats. its a well known fact among those of us who know that is maybe not you that the a904 727 998 999 500 518 618 42r 44 46 and 47 transmissions do not fill the tc while in park. i believe that this is where you were asked to prove your point. unless you can prove that the fluid will be pushed aside or vaporized in 5 seconds causing serious damage your entire argument is once again smoke and mirrors. wrong. anyone with enough experience and santiy knows that oil depends on pressure for the hydrodynamic wedge to be kept stable. take away pressure and its a gamble how long it lasts. one thing is certain it doesnt take long before damage occurs. thats why none of us that has experience unlike you and jacob in this case would not will not and have not ever drained a trans using its own pump. even the fluid flush guys dont depend on the trans draining itself with its own pump. and how long were these transmissions running low on fluid before this damage occured i bet that it was considerably longer then 5 seconds in park. read again boner hell ive seen trannies that did have enough fluid score the outer gear and housing. having enough fluid means they werent running low. so invite trouble by sucking the last drop of fluid out of it isnt that why the filter is
From : mac davis
yep 9 gallons of oil on a d8 cat 342 engine and 50 gallons in the 988 loader hydraulic system. im with ya dude! those were the days! brake fluid should be flushed every other year or changed to a silicone based fluid. silicone based and dot 3 should not be used together. i dont recall seeing that in the fsm. thats because it isnt there. but as the number of responses that affirm my opinion shows it doesnt have to be in the fsm to make sense. i have yet to see brake fluid break down. lol. ok. if it is contaminated with water it will turn acidic dot 3 dot 3 is acidic right out of the bottle thats why it feels warm on the skin and eats paint. and the trick there is to keep the system sealed. yup thats a trick alright. put seals down in the water from puddles drive through water even rain water on the highway and youll soon see that keeping those seals in perfect condition is indeed a trick. better yet use a better type of fluid. since you havent thought that fluid needs changing ill bet your truck still has dot 3 in it doesnt it as far as engine oil it is under much greater abuse and exposure then trans fluid was in the older transmissions. that is debatable. no it isnt. then you are just plain ignorant of trans conditions. agreed and that was my point exactly. then why didnt you say that instead of trying to bs yourself gee i wonder why i wonder why myself. again if you dont know you are missing the obvious. once again you only see half of the point. the drain plug on the pan is nothing without a spin-on filter instead of the one in the pan. bullshit. you just dont like getting trans fluid on your computer soft hands. if the fluid and filter requires the level of service that you and gary suggest then not making it easier to do is just screwing the customer. hardly. most customers wouldnt think of servicing the trans themselves. perhaps they should remove the spin on filter and drain plug from the oil system as well. for some guys they might as well. fleet owners often save money by sampling oil and changing only when contaminants reach damaging levels. hell on the locomotives i worked on years ago the filters lived inside a housing and the drain valve was at the bottom of the sump...... on the inside. we changed oil only when oil samples indicated a need for it. but then changing 75 gallons of lube oil on a whim isnt exactly economical. i bet they saved all of $.05 on each pan. iow its not exactly gonna make or break them one way or the other. a drain and spin on filter would cost much more then $.05. a drain plug retails for about $2 at the mass quantity dc would buy them its just pennies installed. the spin on filters ive seen listed for the 48re and the 45rfe are about the same cost as the filters i use in my 47re. bfd. btw imagine that a redesign of the trans and suddenly its got a spin on filter just like the allison. the primary reason the prior atods from mopar never got one was that the trans front section was the same one from 1965 or so till 2003. max spam filters why purify an undesired substance .