F.S. 74 Ford firetruck REDUCED

From : rick beverly buck

Q: low on r134 low pressure switch shutting it off. compressor can pull a vaccum on the low side. low pressure switch is in part to help prevent more serious damage if there is no refrigerant. where did the r134 go it can escape out the compressor shaft seal orings and hoses. the hose and seals have to be of improved quality over the freon hoses. all refrigerants can be hazardous freezing what they get in contact with like eyes causing blindness or fingers causing frostbite .

Replies:

From : lorne guess noguess net

on sat 18 dec 2004 081747 -0500 roy roy@home.net wrote on fri 17 dec 2004 195407 gmt budd cochran mr-d150@citlinkspam.net wrote he is spouting considerable erroneous information based on his claimed electrical engineering degree and supposed experience. im just trying to educate him. budd you know better than that.. how can you explain or teach anything and expect it to be listened too when youre in someones face challenging them just chill budd.. youre a better person then that.. bro.. i dont get it. all people have to do is ignore t bone. most all are in agreement that he is a asshole so why deal with it admittedly he can piss ya off ive been a second away from engaging him in a number of threads lately but thats his game. why play it ya know who i actually feel bad for his family especially his kids. it has gotta suck listening to that crap 24/7. roy aka p w dunno what t has to do with it bro.. it says just chill budd.. put your reading glasses on ya ol fart.. *eg* force of habit i guess. .

From : mac davis

is the injector in the cylender some of it its actually no different in position than a spark plug... and on the 12v engines removes in the same manner. you just have to disconnect the fuel line that runs to it first. on the 24v engines the injector is in the middle of the combustion chamber like the spark plug on a hemi and you have to remove the valve cover and rocker arms to access them no tube through the valve cover like on a hemi. on the 03 and up engines you also have an electrical connector to deal with. i thought that was a new thing i dont follow... .

From : budd cochran

thanks for the ideas. i gotta ask though how do you do a compression or leakdown test on a diesel without spark plug holes i didnt think of that til after i mentioned it in the original post. - magnusfarce let me start by saying i probably wont think/mention everything here since im hum an and will miss some of the details so read all posts in the thread to get the most from your questions. there are a bunch of knowledgable guys in here. 1 how do these diesel engines wear and what tests can be done to evaluate the engines condition are things like compression tests or leakdown tests meaningful in this case they wear just like any other engine although the cummins b series is particularl known for longevity. you could see million miles on it or it could fail in the next 100k. compression tests and leak down tests are a valuable tool in determining the health of the specimen you have. 2 without knowing anything about the engine aside from its mileage what servicing should i plan to have done since you have a 12 valve engine i would have the valves adjusted since the last adjustment is unknown. unless the engine is exhibiting idle or load oddities such as lope a miss chugging etc your injectors are probably ok. however if you feel its needed and you have the $$ swapping a set of new/rebuilt/performance injectors in will not hurt at all. also itll give you a maintenance baseline. as to the transmission the only issue with the 5spd was the fifth gear nut backing off. ideally youll not need to deal with this but should it happen the fix is a shaft with more thread on it. read that as expensive so you may want to hold off until the problem exhibits itself as it may be fine for the duration of your use. its primarily a result of resonation from the diesel while in fifth gear. thus you will have an idea when conditions can lead to the problem. 3 aside from the engine what else on the truck should i be focusing on everything! seriously check on brakes. be sure the rear drums have operating adjusters and that the front discs have plenty of meat on them. check axle bearings for proper adjustment as well as the front spindles for bearing grease and proper adjustment. check exhaust for soft spots rusted hangers and damage. check driveline for bad carrier bearing grease the universals check for slop/slack/play between componants. check frame for any visible damage or rust. fix any loose mountings or out of place wiring tubing and hoses. check for leaks where ever they may occur. clean the engine and observe periodically for leaks. clean engines can also run cooler and collect less dirt over time. check batteries for date of purchase and replace if they are within a year of life expectancy. check radiator and auxilury coolers for clean and straight fins. check body panels for function doors tailgate hood and grease as needed. not everything in a maintenance log and enjoy the vehicle. max life liberty and the pursuit of any jackass that threatens it. embellished usnavy slogan .