|
|
Joined: May 2001
Posts: 368
CEG\'er
|
OP
CEG\'er
Joined: May 2001
Posts: 368 |
Well after being away from the boards for nearly 6mos. I'm back, but not w/good news. Yup, My 3L is toast well somewhat. After doing a dry compression test all cylinders but #3 came back at 190, #3 100. After a wet compression test #3 cylinder jumped back up to about 170 which seems to the mechanic indicating a sealing issue with the rings. I've got a misfire/low compression/loud tacking sound coming from the #3. Strangely enough, the day this all happened I was toodling along to work just a couple miles down the road from my house, no problems or noises. I park the car go to grab something, come back out start the car and then all of a sudden there's a loud tacking sound accompanied by a rough idle. It's been down hill ever since, cars been sitting for the last 2mos. Seems my car has been doing more sitting than driving. With the money I've wasted on this car, I regret ever buying this car in the first place. The crazy part is, unlike the 2.5, this 3L has seen mostly the mild side of me. I just had the car towed to my friends today so I can work on it, when the motor comes out I'll let the board know what I find. Any Prognosis?? Thanks, Micah 
|
|
|
|
|
Joined: Jun 2000
Posts: 759
Veteran CEG\'er
|
|
Veteran CEG\'er
Joined: Jun 2000
Posts: 759 |
Any details on the build? Hybrid, straight 3.0? Engine year, rebuild prior to install?
|
|
|
|
|
Joined: Mar 2001
Posts: 1,860
Hard-core CEG\'er
|
|
Hard-core CEG\'er
Joined: Mar 2001
Posts: 1,860 |
2001 Lincoln LS8
1994 Lexus GS300
|
|
|
|
|
Joined: Jun 2000
Posts: 759
Veteran CEG\'er
|
|
Veteran CEG\'er
Joined: Jun 2000
Posts: 759 |
Originally posted by Keyser:
Dead lifter.
That wouldn't be so bad compared to something in the lower end...
|
|
|
|
|
Joined: Aug 2001
Posts: 976
Veteran CEG\'er
|
|
Veteran CEG\'er
Joined: Aug 2001
Posts: 976 |
Pull the valve covers and check your lifters like Keyser said, I bet one is not shot.
I offer PnP Heads for all durtec's details at PnPheads.com or jesse@pnpheads.com for details.
|
|
|
|
|
Joined: May 2001
Posts: 368
CEG\'er
|
|
OP
CEG\'er
Joined: May 2001
Posts: 368 |
I haven't personally inspected the lifters, but the mechanic did and he can't find anything wrong with the lifters at all. I haven't gotten a second analysis but I will when my friend takes a look at it, this coming week.
I feel inclined at this point to just count my losses like all my other project cars and just sell it as is before something else goes wrong!!
The PRICE you pay for modding
|
|
|
|
|
Joined: Aug 2001
Posts: 5,810
Hard-core CEG'er
|
|
Hard-core CEG'er
Joined: Aug 2001
Posts: 5,810 |
Originally posted by mamisano:
Originally posted by Keyser:
Dead lifter.
That wouldn't be so bad compared to something in the lower end...
If it was a dead lifter it would probably have to be a dead intake lifter, and only the primary intake valve inorder for it to not get any air into the cylinder. That could [censored] up the compression test. Does it do ok once the secondaries open? If so then maybe you are on to something. If not, then it is highly unlikely that there are two bad lifters side by side on the same cylinder.
A wet compression test indicates that the cylinder is pulling in some air though. He could have a screwed piston ring. A low-end knock or bad bearings won't cause bad compression like that.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
See My Mods
'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black
|
|
|
|
|
Joined: Nov 2004
Posts: 139
CEG\'er
|
|
CEG\'er
Joined: Nov 2004
Posts: 139 |
The price to pay for modding your car.. That makes me nervous being somebody just starting my 3L project. I will have to just try to make sure everything is done correctly and cross my fingers.
98.5 Black contour // A.K.A. Frankenstein
3L Oval port swap W P&P // SVT UIM, LIM, & Cams
Torsen LSD // Dual Friction // KKM // Poly Mounts // ?Mystery Mod? // Actually Running!
205 hp @ 6500RPM 180 tq @ 4250RPM
|
|
|
|
|
Joined: Nov 2000
Posts: 611
Veteran CEG\'er
|
|
Veteran CEG\'er
Joined: Nov 2000
Posts: 611 |
I'm betting you spun a bearing. I bought a cougar a while back that had a loud tapping noise and it turned out to be a spun bearing. The bearing went and the piston had enough slack to hit the head when it traveled up. Not a good thing.
1999 3.0L Cougar: 220fwhp and 200tq
2003 VW Passat W8 with 4 Motion AWD
http://www.cardomain.com/ride/300644
PM for intrest in 3L SVT Contours, 3L swaps into your current car, Prepped 3L engines, or anything 3L related.
|
|
|
|
|
Joined: Nov 2000
Posts: 2,454
Learned patience the hard way
|
|
Learned patience the hard way
Joined: Nov 2000
Posts: 2,454 |
I was talking to Micah as well and thought of a lifter as the first suspect culprit. The engine is a hybrid prepped by me as a long block and has around 6K on it now according to Micah. The conditions it started under didn't lead me to a spun bearing guess right off the bat, but it would be an easy check by dropping the pan versus pulling the heads.
Rick
Owner of 00 #1611 Silver (Totalled) 98.5 T-Red SVT #6180
Buckshot77@msn.com
Misc 3L parts for sale
|
|
|
|
|
