by "boredalways" (boredalway666)
Published 04/20/2017 at 15:00
by "boredalways" (boredalway666)
Published 04/20/2017 at 15:00
Tags: IMS bearings
STARS: 1
https://www.carfax.com/vehicle/WP0CA29815U710801
This isn’t normal, right?
"Bob Loblaw Made Me Make a Phoney Phone Call to Edward Rooney" (braddelaparker)
04/20/2017 at 15:07, STARS: 4
That’s pretty much the poster child for IMS failures. If it fails it’s going to be at relatively low mileage on a car that doesn’t get driven often.
"PartyPooper2012" (PartyPooper2012)
04/20/2017 at 15:09, STARS: 0
educate me... what happens to engine? is it dead dead or can David Tracy use rope seal to fix this?
"jimz" (jimz)
04/20/2017 at 15:12, STARS: 2
“Great Value” quoth CarFax.
This isn’t normal, right?
it’s “normal” for the ~10-15% of those engines where the bearing fails. Some have been cooked by even 18,000 miles. They were dumb and used a single-row ball bearing (weak, especially since the ball bearing has to handle all of the thrust loading) and furthermore, they used a greased and sealed bearing instead of letting engine oil lubricate and cool it. Once the grease dries/cooks off, the bearing is shot.
"jimz" (jimz)
04/20/2017 at 15:16, STARS: 0
some years of certain engines had a non-serviceable bearing. but even if it’s serviceable, when it fails it can let the balls and retainer go flying through the engine, and possibly let valves and pistons collide if cam timing gets too far out of whack.
"R Saldana [|Oo|======|oO|] - BTC/ETH/LTC Prophet" (r-saldana)
04/20/2017 at 15:19, STARS: 1
On an 05? I thought that the IMS bearing issue was on the old over easy egg headlights. Learned something new.
"My X-type is too a real Jaguar" (TomSlick)
04/20/2017 at 15:23, STARS: 1
Hmmm, there’s a company in Michigan that makes an electic conversion kit for these.
"CobraJoe" (cobrajoe)
04/20/2017 at 15:24, STARS: 1
Can I get it cheap? I have an engine I’d stick in it.
Granted, it’s just a B1.8B1 Honda, but still...
"SidewaysOnDirt still misses Bowie" (sidewaysondirt)
04/20/2017 at 15:27, STARS: 4
Cut the price in half, score a WRX motor, make fast.
"SidewaysOnDirt still misses Bowie" (sidewaysondirt)
04/20/2017 at 15:28, STARS: 0
That sounds like either the least or most German design ever. Least for stupidity, most for needlessly complicating something tried and trued.
"Boxer_4" (Boxer_4)
04/20/2017 at 15:30, STARS: 1
Hmm...
People have put EJ255s in 986 Boxsters... I wonder if an EZ30D or EZ36D would fit in a 987...
"Sweet Trav" (thespunbearing)
04/20/2017 at 15:33, STARS: 1
My old company made the IMS bearings that failed.
"Sweet Trav" (thespunbearing)
04/20/2017 at 15:33, STARS: 0
LS SWAP!
"jimz" (jimz)
04/20/2017 at 15:35, STARS: 1
from what I read the reason is that in order to get by with a single cylinder head design (same part for left and right banks) they had to have the IMS drive the camshaft via chains on both ends of the IMS (Ford Cologne did the same thing on the 4.0 SOHC, so it must be a German thing.) the “front” (accessory) end of the IMS is supported via an oil-fed plain bearing since it’s right in there with the oil pump. But they didn’t design any oil passages into the block to feed the “rear” (flywheel side) bearing, so they used a grease-packed sealed ball bearing. since the front plain bearing can’t support thrust loading, the ball bearing had to handle that. but they cheaped out and used a single-row bearing until 2006. That is the failure-prone one. High thrust loads being handled by a single row of balls meant it would wear rapidly and come apart.
Porsche M96:
Ford 4.0 SOHC:
"Arrivederci" (arrividerci)
04/20/2017 at 15:35, STARS: 1
For $5k that might be a fun project, don’t think I’d sink $10k in it. A running base Boxster of that vintage is maybe a $15k car. Wonder if you could shoehorn a 3.8 in it out of a Carrera S :).
"jimz" (jimz)
04/20/2017 at 15:38, STARS: 1
AIUI it wasn’t a flaw in the bearing itself, it was just being used in a way it wasn’t really designed to handle.
"Sweet Trav" (thespunbearing)
04/20/2017 at 15:42, STARS: 1
Even a DRBB isn’t meant to handle high thrust loads. they should have used a set of 15 degree angular ball bearing opposing each other.
"SidewaysOnDirt still misses Bowie" (sidewaysondirt)
04/20/2017 at 15:42, STARS: 0
Huh. Seems like an awful lot of work to not have to mirror the head.
"boredalways" (boredalway666)
04/20/2017 at 15:48, STARS: 1
That seems...not right.
Yet...ok.
"PartyPooper2012" (PartyPooper2012)
04/20/2017 at 15:49, STARS: 0
so then that engine can’t and shouldn’t be saved. LS swap that porsche?
"RallyWrench" (rndlitebmw)
04/20/2017 at 15:52, STARS: 0
NSK?
"Sweet Trav" (thespunbearing)
04/20/2017 at 15:57, STARS: 0
Yep, used to work for them.
"jimz" (jimz)
04/20/2017 at 16:14, STARS: 0
yep, I once had a shop put in DRBB wheel bearings in my SRT-4. Lasted all of 20,000 miles. replaced them with Timken tapered roller bearings, lasted for years until I sold the car.
"Sweet Trav" (thespunbearing)
04/20/2017 at 16:27, STARS: 0
Angular contact ball bearings can last a long time, but they have their problems too. TRB’s are the best and it is a shame they are not used more often.
"DrScientist" (DrScientist)
04/20/2017 at 17:23, STARS: 0
bearing failure. shrapnel through block.
"DrScientist" (DrScientist)
04/20/2017 at 17:25, STARS: 0
the engine carried over to the 997.1's and 987.1's. i thought they updated the bearing by then, but i may be mistaken.
"PartyPooper2012" (PartyPooper2012)
04/21/2017 at 07:04, STARS: 0
well, sometimes that may be ok. Failure. immediate engine stop. Eventually get all the crap out. re-assemble and should be back to ok... but I dont know.