North American Turbocoupe Organization



knocking in the engine
88TCRider Offline
Member
#1
Had a really bad day yesterday and did a really dumb move, I changed the oil in the car and the seal from the old oil filter stayed attached to the block after filter removal. On the way into town the car seemed to dog down a little, so I stepped in the clutch, engine died. Then I thought I would do a rolling start, and she pulled really hard, then something seemed to "pop" and since then it made a clunking sound. I figured out what happen and got more oil in, but after driving it, it doesn’t have all the power it use to, but idles fine. Still there was always a knock now. Though maybe a piston disconnected, but took all the spark plugs out and it seems that the pistons all still go up and down with the turning of the crank. Is it possible that this is a pushrod making that noise? Other ideas? I am hoping to drive this car again, but the wife is wanting to turn it into parts…
88 TC 241K:
T3, bored .030 over block and bowl blended, harden seat added, un-cracked head from an 84 TC. Ranger Roller cam, upgraded valve springs, CP forged pistons, self-polished upper and lower intake, mild ported un-cracked E6, cold air intake, bypass valve, looking for 3" exhaust.
Reply

Pete D Offline
Administrator
#2
No pushrods in this engine - overhead camshaft. Is the clunking sound related to engine speed? Does it get more frequent or louder with an increase in rpms? Is the noise coming from the top of the engine?
Pete Dunham


Reply

88TCRider Offline
Member
#3
It is related to engine speed. it is hardly noticeable at idle, but terrible at high rpms. It is really hard to say where the noise is coming from, but would have to say it is mid to upper part of the engine.
88 TC 241K:
T3, bored .030 over block and bowl blended, harden seat added, un-cracked head from an 84 TC. Ranger Roller cam, upgraded valve springs, CP forged pistons, self-polished upper and lower intake, mild ported un-cracked E6, cold air intake, bypass valve, looking for 3" exhaust.
Reply

powerhouse Offline
Junior Member
#4
rod bearing
88 t/c
85 mustang gt 351w
81 capri 306
Powerhouse Performance Machine - race/performance engines
508-328-9884
Reply

RDOG Offline
Posting Freak
#5
Hate to say it, but it sounds like a rod bearing. When a bearing goes many times it sounds like its coming from the top of engine but its not the case. Usually a bad rod bearing.
1986 Turbo Coupe. Boport StageIII head, Boport 2.1, Performance Techniques 50 trim hybird, StageII.63, stinger 3" exhaust, Phenolic spacer, Boglog header,NPR FMIC intercooler setup, kirban fpr, bigrmotorsports fuel rail, diablo water meth kit, CAI, remote mount TFI, CHE rear adj control arms, MAC girdle, 8.8 rear disc, aluminum drive shaft, H&R lowerings springs Tbird Turbo Specific, y MAS!!
Reply

TurboE Offline
Posting Freak
#6
Rod bearing was my first thought
-88 TC Black
5spd, Precision SC50 T3/T4, QH/SD Tune, Gillis, AFPR, 255FP, WB O2, K&N, Ported E6, 3" DP, ATR 2.5" Duals, 3:73 Rear, Konis, Eibachs, 18" Voxx Wheels, X Drilled Rotors.
-06 G35 Coupe Diamond Graphite
-97 Pathfinder
Reply

88TCRider Offline
Member
#7
So the motor needs to come out and put in new rod bearings. I don't suppose there is any way to get that oil pan off without taking the motor all the way out?
88 TC 241K:
T3, bored .030 over block and bowl blended, harden seat added, un-cracked head from an 84 TC. Ranger Roller cam, upgraded valve springs, CP forged pistons, self-polished upper and lower intake, mild ported un-cracked E6, cold air intake, bypass valve, looking for 3" exhaust.
Reply

Pete D Offline
Administrator
#8
You can get the pan out without yanking the engine. You do have to loosen the motor mounts and jack up the engine. There are some past posts about it
Pete Dunham


Reply

jangus Offline
Senior Member
#9
If you lost oil pressure long enough to take out a rod bearing, you may as well replace ALL the rod AND main bearings.
88TC 5speed, 160,000+, ranger roller, Evergreen T3, cone filter, manual boost controller.
One parts car still waiting to be taken apart.
Waiting in the garage: SC throttle body, SC intercooler, graphic equalizer, among other things.
Reply

russ c Offline
Senior Member
#10
Quote:Originally posted by jangus:
If you lost oil pressure long enough to take out a rod bearing, you may as well replace ALL the rod AND main bearings.
+1
86TC Saved from certain death
88TC Gave its life so other TCs could live.
88TC DD.
Reply





Users browsing this thread:
1 Guest(s)



Theme © iAndrew 2018 - Software MyBB