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Old 10-18-2010, 08:26 AM   #1
mateospeed
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Default Remove/ Replace heads with engine in car?

Hey y'all, I'm doing a timing belt on a Marine wife's car (2001 Outback, 2.5L SOHC) while her husband is deployed. I've been a Scooby guy for a long time, and just sold my Bugeye. Unfortunately, I'm pretty sure I managed to bend a few valves while getting the crank pulley off. I tried to loosen the crank bolt while holding the D/S cam bolt, which just jumped the belt on the crank pulley. Then I tried the "bump the starter" trick, but forgot that the timing was off. Long story short, I probably bent some valves spinning the motor with the starter, and the engine seems to have NO compression now with the new belt (spins really fast when trying to crank, and won't start). Yes, I'm pissed at myself for making a dumb mistake.

My question is: Is it possible/ efficient to pull the heads off with the engine in the car? Or should I be looking at removing the engine?

Also, does anyone have a service manual for this engine that they'd be willing to share? It appears I'll be needing torque specs and so forth in the very near future.

Thanks!!

-Mateospeed
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Old 10-18-2010, 11:08 AM   #2
Patrick Olsen
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It's possible, not sure how efficient it is, though. It seems the general consensus of the guys who do lots of engine work is to just pull the engine.
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Old 10-18-2010, 11:10 AM   #3
lavid2002
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Not worth it, all you have to do is unbolt the trans and lift it out if you already have acess to pull the heads off.

It will make your life 300% easier when cleaning off old gasket material, putting the heads on, etc...
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Old 10-18-2010, 11:46 AM   #4
grafton
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+1 engine out is better just for the easier access to everything
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Old 10-18-2010, 11:49 AM   #5
Matt Monson
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Pull it.
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Old 10-18-2010, 11:50 AM   #6
wobbletop
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Double check the timing belt before pulling the heads.

If you have the hoist/stand available, and have experience pulling the engine, then it is possibly easier. It is possible to remove the heads while the engine is in the car and that's the way I changed the heads on my 02 WRX. I've removed/replaced the engine before, and did not want to have to redo it and also acquire and store the hoist/stand.
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Old 10-18-2010, 12:58 PM   #7
Storm
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Just pull it....you will thank us later!


Jay
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Old 10-18-2010, 11:39 PM   #8
williaty
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Pull it.

I made the mistake of working with cams in the engine bay once. Never again. Just pull the bitch.


Not to mention that for the fact you're going to have to remove the heads, clean up the heads and block, and install new headgaskets, I don't feel you can properly clean things with the engine in the car. In all seriousness, you need to get the mating surface clean enough you'd be comfortable with your wife licking them before you put the headgaskets back in.
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Old 10-19-2010, 09:08 AM   #9
mateospeed
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Quote:
Originally Posted by williaty View Post
In all seriousness, you need to get the mating surface clean enough you'd be comfortable with your wife licking them before you put the headgaskets back in.
That's one the best ways I've ever heard to put gasket surface cleanliness. I'm impressed!

I think you are all correct- the motor needs to come out. After pulling a few more things off last night, it's very clear that (A) it's going to be very easy to do so, and (B) it would be a BITCH to get the heads off and back on in the car.

I'll pull it tomorrow night, probably. Many thanks for all of your speedy and helpful input!!

-Matt
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Old 10-19-2010, 09:20 AM   #10
Subikid90
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Can you do it, yes. I have done both in a 97/98 LGT and pulling was much easier. It take about the same time to remove everything around the motor, as just pulling the motor.
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Old 10-25-2010, 08:19 AM   #11
mateospeed
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Engine is out! It would have been very easy, had the block and tranny not been COMPLETELY corroded together. It appears that this is for sure the easy way to go about this.

-Matt
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Old 10-25-2010, 09:44 AM   #12
Storm
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most definately. Good luck on the rest of the repair!

Jay
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Old 10-27-2010, 01:21 PM   #13
mrcrawford84
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Pardon my noob response. But, these are indeed interference engines?
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Old 10-27-2010, 01:22 PM   #14
williaty
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Depends on the year and model, but yes, the ones we're talking about are.
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