1987 300D with the 3.0 liter turbodiesel engine

my idle fluctuates. i know i must need engine mounts, because it shakes like a mo-fo.. i'll try to explain it exactly.

when the car is cold, it will idle at like 300 rpm... and shake the entire car so bad you can see it from 10 yards away. it's very loud in the cabin and very obnoxious. even sometimes at temperature, the idle will drop until i rev it up and it "catches" and idles back at normal rpm.

-note: it isn't missing. it's just idling like it's a bored out 454 with a hot cam and stuff. but not as nice sounding

anyway, the car runs just fine, doesn't smoke much at all. accelerates great, vacuum works. 198,xxx miles on the engine, could anyone provide insight as to what this could be?



another issue that could be directly or indirectly linked to this- i have an extra little "clack" in my diesel idle. it isn't a miss, it doesn't shake the car. it speeds up with the rpm and it's pretty loud. you hear it as the engine makes one revolution. it's kind of hard to explain. any ideas? i've heard valve tick and it isn't that i don't think, it sounds like someone's chucking a bolt at the engine block or something...

__________________
.:1982 300D "The Ambassador"- R.I.P:.
.:1987 300D 3.0 "Häns"- Current Whip:.
.:1967 F85 Oldsmobile "Grandpa"- Show And Go:.
.:1991 WS6 Firebird Trans-Am "Blackbird"- FOR SALE:.

It sounds like you might need to adjust/upgrade your rack damper bolt.

Check out this link.
http://schumanautomotive.com/forums/showthread.php?t=4876

__________________
Chad
2013 Jeep Unlimited Rubicon
OBK#44
"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)

SOLD
1985 300TD - Red Dragon
1986 300SDL - Coda
1991 - 300TE
1995 - E320
1985 300CD - Gladys
2006 Nissan Pathfinder LE
1998 Acura 3.0 CL

i had a feeling it could be that, except it's sporadic. it isn't like this all the time, just when it feels like it. and it happens to be more prevalent on a cold-start. on a hot start, it isn't there 90% of the time. it's mind boggling..literally.

__________________
.:1982 300D "The Ambassador"- R.I.P:.
.:1987 300D 3.0 "Häns"- Current Whip:.
.:1967 F85 Oldsmobile "Grandpa"- Show And Go:.
.:1991 WS6 Firebird Trans-Am "Blackbird"- FOR SALE:.

If its metalic clatter/rattle then rubber air filter housing mounts could be suspect. BTW, you can retorque engine mounts - probly oughta be done every couple yrs anyhow. Definitely replace em, figure vibes transmitted direct to flex disc. And caint be healthy for any engine components including IP, belt driven PS pump etc. Hell, yer oil cooler and tranny lines could be shakin against something too, soon to wear holes in em.

You're in luck. There is nothing more relaxing than driving a tractor.....

__________________
Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John