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06-25-2016, 09:48 PM | #1 |
Scooby Newbie
Member#: 417993
Join Date: Apr 2015
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Cannot remove cam sprocket bolts on EJ255
I tried removing the cam sprocket bolts on my EJ255 with a compressed air impact wrench. They didn't budge. I then bought a 150 psi air compressor that runs at 4.0 CFM at 90 psi and an Ingersoll Rand impact wrench (model eb2125x) that boasts 690 ft-lb reverse torque with an average air consumption of 5 CFM. The bolts are still not coming out. I am using a 10mm allen key socket with a 3/8 to 1/2 inch adapter for the impact wrench. Are these bolts reverse threaded or did someone way over tighten them? Is my air compressor or impact wrench not strong enough?
Also I noticed that the mark on the upper passenger side cam sprocket is not lined up with the mark on the timing belt cover. I'm not sure if it has been like this or the cam sprocket jumped teeth on the belt while I was trying to loosen the bolts. The green mark I put on the cam sprocket is still aligned with the green mark I put on the timing belt so it seems like it might have been like this already. Are my valves ****ed? Can I just loosen a tensioner and move the cam sprocket back to the correct index?
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06-25-2016, 10:05 PM | #2 |
Scooby Newbie
Member#: 417993
Join Date: Apr 2015
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Finding some good info here:
https://www.reddit.com/r/Justrolledi...t_on_a/cvhod42 and here: http://forums.nasioc.com/forums/show....php?t=2362176 |
06-25-2016, 10:10 PM | #3 |
Scooby Specialist
Member#: 141952
Join Date: Feb 2007
Chapter/Region:
MWSOC
Location: milwaukee'ish
Vehicle:2023 M340i |
drill the heads off. its the safest method by far.
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06-25-2016, 10:11 PM | #4 |
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06-25-2016, 10:30 PM | #5 | |
Scooby Newbie
Member#: 417993
Join Date: Apr 2015
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Quote:
I guess I'll be doing this, after the method suggested in the reddit thread, holding the cam sprocket with a large pipe wrench and breaker bar, and an allen key with breaker bar. |
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06-25-2016, 10:36 PM | #6 |
Scooby Newbie
Member#: 417993
Join Date: Apr 2015
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Can anyone tell me if my one cam sprocket being out of index with the other sprockets means my valves are damaged?
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06-25-2016, 10:38 PM | #7 | |
Scooby Specialist
Member#: 141952
Join Date: Feb 2007
Chapter/Region:
MWSOC
Location: milwaukee'ish
Vehicle:2023 M340i |
Quote:
drill slow and spray lube on the tip of the bit and it will take 5 min tops per bolt. too fast of drill speed or too much heat from no lube and you work harden the surface and make more work for yourself. |
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06-25-2016, 10:43 PM | #8 |
Scooby Specialist
Member#: 141952
Join Date: Feb 2007
Chapter/Region:
MWSOC
Location: milwaukee'ish
Vehicle:2023 M340i |
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06-25-2016, 10:46 PM | #9 |
Scooby Newbie
Member#: 417993
Join Date: Apr 2015
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06-25-2016, 11:12 PM | #10 |
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Join Date: Feb 2005
Location: Dillon, CO
Vehicle:'98 RS-T Blue |
If all the other marks line up, you could be hosed! Those double marks are suppose to be pointing down.
The pic looks like it is the sprocket on the intake of the passenger side. If it is, you might of lucked out. The pistons will be half way down and no exhaust valves are open on the passenger side when lining up timing marks. |
06-25-2016, 11:58 PM | #11 |
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Try using a chain wrench and your old timing belt. cut your old timing belt and wrap it around the gear, cut the excess belt. then wrap the chain around and try to break the bolt with 10 mm allen and breaker bar. it works for me . its a crank pulley holder but it works on cams . https://www.amazon.com/OTC-24-Ratche.../dp/B000I1R27K
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06-27-2016, 12:11 AM | #12 |
Scooby Newbie
Member#: 417993
Join Date: Apr 2015
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Got the bolts out this morning with PB Blaster and a breaker bar. Had someone hold a socket wrench on the harmonic balancer bolt, they also had to hold the engine down because I was lifting the engine and engine stand off the ground. The 1/2 to 3/8 socket adapter snapped on the 3rd one, so we got the last two out with a regular allen key and breaker bar. I was so surprised the bolts didn't round out on any of them.
Thanks for the help guys! |
03-23-2018, 05:43 PM | #13 |
Scooby Newbie
Member#: 482365
Join Date: Feb 2018
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Subaru Cam bolt removal trick!
Check this video out. It solves all your cam bolt removal issues as long as you haven't stripped the allen head. I hope it helps!
~shaun |
04-01-2018, 12:35 PM | #14 |
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04-02-2018, 05:33 PM | #15 |
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Vehicle:2012 WRX silver |
Man my bolts were in there right as hell. We used 3/4 drive and got em out. Rediculous
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04-15-2018, 08:59 AM | #16 |
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Cannot remove cam sprocket bolts on EJ255
I really don’t understand why people try to use an impact that has a lot of torque. These bolts are soft AF. Use the right tools:
Company 23 cam sprocket tool and a breaker bar. Maybe grab a buddy to help out. And when you strip it out, which happens grab an axle nut and weld the center point slowly to allow the heat to dissipate and back it out with a socket. |
04-16-2018, 11:58 AM | #17 |
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Member#: 477289
Join Date: Nov 2017
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Cam Sprocket Tool
Buy the Cam Sprocket tool for $100 and use a breaker bar. When you hold the cams with the tools from Company 23, and use a proper breaker bar it's easy to remove these bolts. Then buy the hex head bolts from IAG to build your new motor.
http://www.company23.com/products/subarutools |
04-16-2018, 02:47 PM | #18 | |
Former Vendor
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04-18-2018, 01:44 AM | #19 | |
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04-18-2018, 10:11 AM | #20 | |
Former Vendor
Member#: 93646
Join Date: Aug 2005
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Vehicle:Many Track Records Let us help you go fast! |
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04-18-2018, 12:22 PM | #21 | |
Scooby Specialist
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Quote:
Thanks for the link! |
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