|
|
|
#1
|
|||
|
|||
Question for today.
1980 300SD Turbo.
Symptoms: Tapping sound started about 150 miles ago. Quietly at first, but then got louder--like a loose valve sound. It sounds similar to a Cummings V-8 diesel--loud.... Idles a little rougher than it used to, starts with no problem though. Slight increase in black smoke under acceleration but disappears quickly. Took valve cover off, adjusted valves--no difference--sound still there. Replace injectors--no difference. What next? Any ideas? I'm going to check valves again this morning, but I'm pretty sure they are correct. As an aside and unless I made a mistake--and this may have nothing to do with anything--my mileage went from 26 mpg to 31 mpg.
__________________
Rev. Dr. G. Church of the SubGenius It doesn't take a genius |
#2
|
||||
|
||||
mileage could be just due to the #2 fuel being available again.
noise could be tons of things, try to isolate it with a broomstick against your ear, or a short length of garden hose, to use as a stethoscope. when you had the injectors out, did you look at the prechambers? are all the atomization globes still in place? hopefully, it's not a rod bearing or something. has your oil pressure ever dropped below 1 Bar, or 15psi? have you ever run it out of oil? is there oil in the sump? where is it on the dipstick? bottom mark? top mark? above the top mark? John
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#3
|
|||
|
|||
Oil use
1980 300SD
It uses very little if any oil--and what it does lose is through the oil cooler having a slight leak. I might put a half a quart in it (if that) between 5000 mile oil changes. I didn't look inside the injectors, but I'm going to bite the bullet and go out and pull the valve cover in a minute and re-check the clearance. I appreciate any ideas.
__________________
Rev. Dr. G. Church of the SubGenius It doesn't take a genius |
#4
|
|||
|
|||
a few more items
Quote:
__________________
Rev. Dr. G. Church of the SubGenius It doesn't take a genius |
Bookmarks |
|
|