fjh
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Everything posted by fjh
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Another thing we did was to move that sensor to a welded in bung in the cold side pipe just after the tube comes out of the after cooler that aparently stoped the heat sinking of the sensor at stop lights.
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If the check valve is OK it has to be the pump the check valves or somthing like that!Does the primary filter have a drain on the bottom do you have any fillters in line that have a glass bowl? dont trust them by pass them.If there is a plastic return line to the head the jumper between the heads can cause greif!
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OK there should be some wires tied up some where for it one gos to the center and on one side of that switch when you find them!
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Nope Jerry yours is on the money if you push it on a cold day you can hit 38 with a 460.that turbo will put out far more air than your engine can use but with out more fuel more air is useless!I have personaly pluged the by pass valve ,It will bang the boost gauge off the end of the gauge.ya don't want to go there. The waste gated turbo is designed to put no more than 33 psi into that year, FOR WHAT ever reason, These engineer types put a derate in there at 33 psi, As if more air would hurt the engine WHAT EVER!
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Barry! we are having a problem with getting some after market retrofit dpf kits for 0ur customers with 88 to 93 trucks Apperantly donoldson has signed an excussive contract with Paccar here in BC to supply these to anyone who needs em !The huss out fit that Mack recomends is not reachable they seem to have droped off the face of the earth.
Any Ideas where else to get these at a rea...
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We have had problems with the waste gated turbo before the waste gate Maybe stuck open or not sealing properly!As 68 mentioned 33 psi boost is max before derate on those engines!
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The valve set marks are on the flywheel !peer thru the hole at the bottom of the engine bell houseing look for valve set marks center them in that hole, in engine rotation firing order 153624 start on 1 valves overlapping on N0#6 set N0# 1, 16 intake, 24 exhast, 15 to 21 on the jake,move the flywheel to the next set of numbers in the firing order( 5 )valves will be overlaping on (2) set 5 and so on! pretty basic.
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Had A Look At Canada Today
fjh replied to cgallamore's topic in Modern Mack Truck General Discussion
Montana looks like my part of Canada EH! -
Go to the heavyduty section on this site http://www.thedieselgarage.com/forums/index.php good info site.the posistion sensor under the compressor somtimes gives problems on these!check your engine grounds and battery conections!
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I have heard that the early 350HP had the tip turbine/water combo as well. This is a fact! All the above posts are valid coments ,No real advantage or disadvantage the frontal air cleaned up the engine compartment mostly the tip turbine engine likly would give a little less turbo lag not really noticable to the average guy!And as usual the frontal air was paving the way to the 4 valve engine that was the main reason for the change.No real advantage or disadvantage
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I'm jealous . If you ever get a haul for where you are to Vancouver Island You need to stop and at least say HI! I'll even give ya back haul a truck load of politicians’ we need to get rid of!Oh wait you already got some! Well have some more!Cheaper by the dozen.
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In this case he asked for it to be done!He paid!I made the plate it takes but fifteen minutes to make a plate did that for free.If I find this to be worth the while I will be doing this at exhast gasket time!IF asked to do so! Under a job line on the work order REPAIR EGR system.
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So truck three was back this weekend hes seeing no loss of power maybe even an increase and as of yet no milage gain on the mpg But thats on the VIP read out averaged over how many miles? So the saga continues and the jury still out for a while!If we gadually start seeing an increase that will tell the tale!Hes been getting the same milage from day one so its going to take quite a while to read any increase on the vip!EGR code still intact!
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I had Three in service !(truck 2) Back down to two the guy claimed it reduced his power! The first guy I did is happy saving 40 bucks a day in fuel no power complaint. truck three verdict is still out on he has thrown a code but it took a hundred miles to do so no power decrease and no coment on the fuel savings as of yet this was well worth trying thou! 68 A thought here what happens if the egr valve gets stuck in the half way postion by say, capping off the oil flow to the valve???
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The If its an AMBAC pump you can remove just the governer to have the repairs done! If its a robby bosch the pump has to come off!its been awhile since we had any pump work done but some where in the 1000 buck range sounds correct! take your pump No#s in and Get a quote!
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The If its an AMBAC pump you can remove just the governer to have the repairs done! If its a robby bosch the pump has to come off!its been awhile since we had any pump work done but some where in the 1000 buck range sounds correct!Get a quote!
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I hate changing parts but it come to a point when ya got too!Heres another one to change there is a ground falt breaker on older units its the small rectangle thing up by the starter relay on the fire wall black wires go to it ,try jumping that out and see if your problem changes!If it does replace it!
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Yup like Trent has said check the the throtle lever internal spring if there is any movment between the spring ends this will cause the engine to surge!If its not loose then the govener is at falt!
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Its a wet sleave engine, you need to pull the pan down a look to see where the coolant is coming in! It is likly liner orings But oil coolers have been known to fail as well!Parts a quite pricey so think VERY heavy on looking for a diffrent truck!
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Giant 2 the engine he has has roller lifters!His failure is as 68 discribed ,Nature of the beast! The cam failures are pretty much few and far between now once, the newer ceramic lifter is installed!(For the most part) The flat tappet lifter of the pre ETeck engine was improoved just before the ETeck engine came along!Since that time I have never seen that improoved lifter fail.It is used in all the earlier engines including the E6 And V8.
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A poor spraying injector will also cause problems like this!
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It is simply the main fuel pump plug !When you have this apart look at it head on and see if there are any signs of heat, brown looking areas on any of the plastic pin bosses If you find any that look discolored I would go to the dealer and have it repined!
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Take this plug apart as directed above and put it together and take it apart 6 or 7 times blow it out and try it this may help.If not take it to a dealer and have them re pin the plug.
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I beleive there are three ,If you take it off at the 4 bolts it will hang up on the hub inside!There is one real long one on the bottom 6 - 8 inches and two shorter ones 3-4 inch on the top 13 or 15 mil heads can't remember sizes.The timing advance stays on the engine.the first little section stays with the pump.There is a loose or floating coupling inside.
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