Is my engine blown?
Thread Starter
Safety Car
Joined: Jul 2008
Posts: 3,966
Likes: 4
From: Made In America
St. Jude Donor '10-'11
Is my engine blown?
I just cranked it up in the driveway and this terrible grinding sound is coming from the middle. Oil changed every 3000 miles no matter what. Top quality synthetic and mobil1 filters. Past 7 years...
What could it be?
What could it be?
Melting Slicks
Joined: Feb 2011
Posts: 2,322
Likes: 6
From: Los Altos CA
Not enough info to say...any codes, smoke, etc.?
Worst comes to worst, this one needs a new home and ran great 'til pulled:
http://forums.corvetteforum.com/c4-p...nsmission.html
Worst comes to worst, this one needs a new home and ran great 'til pulled:
http://forums.corvetteforum.com/c4-p...nsmission.html
Race Director
Joined: Apr 2003
Posts: 17,699
Likes: 1,667
From: moraga ca
If the noise happends during cranking, it could be your flywheel/flexplate ring gear not meshing correctly with your starter gear. Loose starter or eaten gears. By the way, changing synthetic oil every 3000 miles is a waste of dinosaurs.
Drifting
Joined: Sep 2002
Posts: 1,642
Likes: 0
From: Suwanee,Ga
Not to hijack.. but lets say it's the starter..
Has ANYBODY actually checked the flywheel to starter pinion clearance on an install??
The FSM shows a .5 MM dia. wire tool but I can't see for the life of me how to get that thing between the ring gear and pinion gear???
Look like freaking magic to me?
TJM
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Also, if manual, push in/let out clutch.
Melting Slicks
Joined: Nov 2005
Posts: 2,736
Likes: 0
From: WAY UPSTATE NY
Not to hijack.. but lets say it's the starter..
Has ANYBODY actually checked the flywheel to starter pinion clearance on an install??
The FSM shows a .5 MM dia. wire tool but I can't see for the life of me how to get that thing between the ring gear and pinion gear???
Look like freaking magic to me?
TJM
Has ANYBODY actually checked the flywheel to starter pinion clearance on an install??
The FSM shows a .5 MM dia. wire tool but I can't see for the life of me how to get that thing between the ring gear and pinion gear???
Look like freaking magic to me?
TJM
Drifting
Joined: Sep 2002
Posts: 1,642
Likes: 0
From: Suwanee,Ga
The hijack continues. OP will need to know anyway... Bonus!!
The bell housing encapsulates flywheel 360 degrees, as opposed to the old style.
You have to get the "tool" [ a 0.5 mm wire gage between the actuated solenoid [ which is another story altogether] and the flywheel teeth.
I laid on my back for two hours last week with about 12 bent up welding wires Failed to get the thing in there, at least with any confidence.
[ incompetence possible , here].
Finally was satisfied with the "Put chalk one the teeth " method....
Helper R&R'd three times before we got a good fit?
So??? technique?????
TJM
Instructor
Joined: Apr 2011
Posts: 218
Likes: 16
From: Littleton CO
Very first step would be to pull the accessory belt and press the clutch in if it is a manual, thereby isolating the things turning to just the engine and starter. If it stops after the car starts - provided it will start 
- then it is the starter to flywheel engagement. If not, it is something internal.
- then it is the starter to flywheel engagement. If not, it is something internal.
Pro
Joined: Dec 2010
Posts: 704
Likes: 1
From: Shillington PA