The Subaru SVX World Network   SVX Network Forums
Live Chat!
SVX or Subaru Links
Old Lockers
Photo Post
How-To Documents
Message Archive
SVX Shop Search
IRC users:

Go Back   The Subaru SVX World Network > SVX Main Forums > Technical Q & A

Reply
 
Thread Tools Display Modes
  #1  
Old 03-13-2005, 10:18 AM
immortal_suby's Avatar
immortal_suby immortal_suby is offline
Thread Killah
Alcyone Gold Contributor
 
Join Date: Feb 2001
Location: Greenville, SC
Posts: 5,835
Registered SVX
Front main sprocket stuck

Arghh.

My replacement engine is giving me a pain in the arse.
Finally had nice weather today to drag it out and planned to replace the oil pump, water pump, timing belt, and cam seals.
Got as far as getting the timing belt off and I can't get the main sprocket to budge.
I guess there must be a special tool to remove it. It has just slid right off on the other svxii every time. I don't want to pry on it and damage the teeth for the crank position sensors.

Can't budge the cam sprocket bolts either. I guess I have to spend the money on the subaru tools.

Anybody got any redneck methods of removing it? Slide hammer?
__________________
Matt
Locker Link
2015 BRZ Limited 6MT
92 Ebony LS-L ECUtune Stage2av1, Z32 MAF, 370cc injectors, TomsSVX intake, BontragerWorks 22mm RSB #003, HID Hi and Lo beams, OT endlink and bushing mods, PWR Aluminum radiator, Harvey's QC shift kit, 2.5" flowmaster 80 exhaust, 17" Michelin Pilot Sport A/S, Poly sway bar bushings, Slotted Bradi rotors, AFBeefcake powdercoated calipers, 97 grill, and a huge set of air horns. 300,000 miles and counting
92 Ebony LS-L. ecutune stage1v4, motorsport 1pc pulley. Garage Queen - sold to Dad in upstate NY 155,000 miles
19 Subaru Ascent Premium - -Hers !.
89 DL 4x4 little red wagon - a.k.a. The immortal suby. 275k R.I.P.
Reply With Quote
  #2  
Old 03-13-2005, 10:26 AM
kuoh kuoh is offline
Registered User
 
Join Date: Mar 2002
Location: Kansas City, MO
Posts: 1,200
Send a message via AIM to kuoh
I take it that you have already removed the half moon key? As for the the cam sprokets, I used a strap wrench to hold it still while loosening the bolt.

KuoH
Reply With Quote
  #3  
Old 03-13-2005, 10:37 AM
immortal_suby's Avatar
immortal_suby immortal_suby is offline
Thread Killah
Alcyone Gold Contributor
 
Join Date: Feb 2001
Location: Greenville, SC
Posts: 5,835
Registered SVX
Have not removed the key. Never had to before but thanks, I'll try that next.

I was using a strap wrench on the cam sprockets but couldn't get it tight enough to hold them still.
__________________
Matt
Locker Link
2015 BRZ Limited 6MT
92 Ebony LS-L ECUtune Stage2av1, Z32 MAF, 370cc injectors, TomsSVX intake, BontragerWorks 22mm RSB #003, HID Hi and Lo beams, OT endlink and bushing mods, PWR Aluminum radiator, Harvey's QC shift kit, 2.5" flowmaster 80 exhaust, 17" Michelin Pilot Sport A/S, Poly sway bar bushings, Slotted Bradi rotors, AFBeefcake powdercoated calipers, 97 grill, and a huge set of air horns. 300,000 miles and counting
92 Ebony LS-L. ecutune stage1v4, motorsport 1pc pulley. Garage Queen - sold to Dad in upstate NY 155,000 miles
19 Subaru Ascent Premium - -Hers !.
89 DL 4x4 little red wagon - a.k.a. The immortal suby. 275k R.I.P.
Reply With Quote
  #4  
Old 03-13-2005, 11:26 AM
Beav's Avatar
Beav Beav is offline
Not as old as Randy
 
Join Date: Nov 2001
Location: Louisville, KY
Posts: 3,883
Significant Technical Input
A piece of steel with a couple strategically drilled bolt holes to accomodate bolts/nuts that will reach in between the sprocket spokes will work just dandy. Nothing you can't find at Home Depot.

The crank sprocket is probably just stuck on old, dry oil. Soak it a little and use a bar to walk it off. Or use a gear puller...
__________________
ASE Certified Master Automotive Technician w/L1.
ASE Certified Master Medium/Heavy Truck Technician.
Certified EVT (Emergency Vehicle Technician)
Reply With Quote
  #5  
Old 03-13-2005, 11:50 AM
immortal_suby's Avatar
immortal_suby immortal_suby is offline
Thread Killah
Alcyone Gold Contributor
 
Join Date: Feb 2001
Location: Greenville, SC
Posts: 5,835
Registered SVX
Just to clarify. I have the crank pulley off, it is the crank sprocket that is stuck.
I tried to remove the half moon key but couldn't get it out even with a vise grip on it. It moved a little but wouldnt come out.

I have PB blaster on it now.

It doesnt look like any of the holes in the sprocket are threaded where I could get nuts into it to drive it off or grab hold of it. Probably going to need a gear puller.
__________________
Matt
Locker Link
2015 BRZ Limited 6MT
92 Ebony LS-L ECUtune Stage2av1, Z32 MAF, 370cc injectors, TomsSVX intake, BontragerWorks 22mm RSB #003, HID Hi and Lo beams, OT endlink and bushing mods, PWR Aluminum radiator, Harvey's QC shift kit, 2.5" flowmaster 80 exhaust, 17" Michelin Pilot Sport A/S, Poly sway bar bushings, Slotted Bradi rotors, AFBeefcake powdercoated calipers, 97 grill, and a huge set of air horns. 300,000 miles and counting
92 Ebony LS-L. ecutune stage1v4, motorsport 1pc pulley. Garage Queen - sold to Dad in upstate NY 155,000 miles
19 Subaru Ascent Premium - -Hers !.
89 DL 4x4 little red wagon - a.k.a. The immortal suby. 275k R.I.P.
Reply With Quote
  #6  
Old 03-13-2005, 12:43 PM
SVX-FF's Avatar
SVX-FF SVX-FF is offline
Live it, Love it, Breathe it
 
Join Date: Dec 2003
Location: Manchester Township, PA
Posts: 1,207
Send a message via Yahoo to SVX-FF
I know from past experience that the cam sprockets are very hard to get off the first time. The subie dealer tool is nothing more that a wrench the graps the sprockets teeth. The bolts are about 90ft lbs tight.
Somthing like this might work Wrench

If that does not work and you are going to replace the valve cover seals, use a flat screwdriver on the inner cam gear teeth. It worked for me when I need to snap the cam sprocket bolt off.

Steve
__________________
92 SVX AWD 130,000 w/ rebuilt SVX 4.11
97 Audi A4 1.8T (Daily Driver)
03 Ford Expedition(hers)

SVXepidia SVX information warehouse
Are you in?

My Old Locker

A 4.11 Founding Father
"Tranny #6" I really need a manual

Reading IX

[SIGPIC][/SIGPIC]

Ya I was there
Reply With Quote
  #7  
Old 03-13-2005, 02:16 PM
Beav's Avatar
Beav Beav is offline
Not as old as Randy
 
Join Date: Nov 2001
Location: Louisville, KY
Posts: 3,883
Significant Technical Input
Imagine a bar with two bolts through it forming the letter 'F'. Put the two bolts into the center of the cam sprocket and hang onto the long end of the bar while breaking the bolt loose. TIP: make the inner bolt a slot and it will be adjustable for other cars... Any metal to metal contact with the belt teeth can twist the sprocket or damage the teeth, causing sharp edges that aren't exactly good for the belt.

The crank sprocket many times will be stuck by oil grunge. Usually some PB and a little judicious prying with a heavy screwdriver or a small lady foot bar (available at most any place that sells tools - also known as a rolling foot bar.)
__________________
ASE Certified Master Automotive Technician w/L1.
ASE Certified Master Medium/Heavy Truck Technician.
Certified EVT (Emergency Vehicle Technician)
Reply With Quote
  #8  
Old 03-13-2005, 06:35 PM
SubaSteevo's Avatar
SubaSteevo SubaSteevo is offline
No longer blue member
 
Join Date: Jul 2002
Location: Clinton, NJ
Posts: 3,341
Send a message via AIM to SubaSteevo
I know the feeling Matt, when I did my T-belt I got as far as you did and then gave up on the sprockets. I changed the waterpump without removing the rear dust shield, not fun.
__________________
-Steve

Member #895(the member formerly known as BurgundyBeast)
01' MSM Lexus IS300
Reply With Quote
  #9  
Old 03-14-2005, 01:24 AM
kuoh kuoh is offline
Registered User
 
Join Date: Mar 2002
Location: Kansas City, MO
Posts: 1,200
Send a message via AIM to kuoh
If the key is stuck, there is the possibility that it might somehow be wedged between the shaft and sprocket. This happend to a friend's SVX when the bolt holding the crank pulley came loose and sheared the key. We could never get the other half of the key that was stuck under the sprocket out nor could we get the sprocket off using a puller.

On the strap wrench, you will need to have help. It isn't possible for you to hold the wrench tight and use the breaker bar at the same time. Make sure you both wear thick gloves, as one slip could easily mean mashed fingers.

KuoH

Quote:
Originally Posted by immortal_suby
Have not removed the key. Never had to before but thanks, I'll try that next. I was using a strap wrench on the cam sprockets but couldn't get it tight enough to hold them still.

Last edited by kuoh; 03-14-2005 at 01:27 AM.
Reply With Quote
  #10  
Old 03-14-2005, 05:30 PM
svx_commuter's Avatar
svx_commuter svx_commuter is offline
Making tires round, Six now :)
 
Join Date: Feb 2001
Location: North Jersey
Posts: 3,433
I had to tap the holes in the crank sprocket the first time I took one off. Then I was able to use a puller. You may have to push the sprocket back on all the way to get the half key out.
__________________
May your transmission live forever.
SuperbVehicleXtraordinary
Proud sponsor of a 1992 SVX.
Reply With Quote
  #11  
Old 03-15-2005, 04:45 PM
immortal_suby's Avatar
immortal_suby immortal_suby is offline
Thread Killah
Alcyone Gold Contributor
 
Join Date: Feb 2001
Location: Greenville, SC
Posts: 5,835
Registered SVX
Good ideas! Thanks guys, I'll have another go at it this weekend. I've been spraying it with PB blaster every morning before heading to work.
__________________
Matt
Locker Link
2015 BRZ Limited 6MT
92 Ebony LS-L ECUtune Stage2av1, Z32 MAF, 370cc injectors, TomsSVX intake, BontragerWorks 22mm RSB #003, HID Hi and Lo beams, OT endlink and bushing mods, PWR Aluminum radiator, Harvey's QC shift kit, 2.5" flowmaster 80 exhaust, 17" Michelin Pilot Sport A/S, Poly sway bar bushings, Slotted Bradi rotors, AFBeefcake powdercoated calipers, 97 grill, and a huge set of air horns. 300,000 miles and counting
92 Ebony LS-L. ecutune stage1v4, motorsport 1pc pulley. Garage Queen - sold to Dad in upstate NY 155,000 miles
19 Subaru Ascent Premium - -Hers !.
89 DL 4x4 little red wagon - a.k.a. The immortal suby. 275k R.I.P.
Reply With Quote
  #12  
Old 03-18-2005, 04:10 PM
wawazat??'s Avatar
wawazat?? wawazat?? is offline
Yeah, I'm still around
 
Join Date: Aug 2001
Location: Beverly Hills, MI
Posts: 3,770
Quote:
Originally Posted by immortal_suby
Good ideas! Thanks guys, I'll have another go at it this weekend. I've been spraying it with PB blaster every morning before heading to work.
Good luck Matt.

Todd
__________________
Down to none
Reply With Quote
  #13  
Old 03-19-2005, 02:42 PM
immortal_suby's Avatar
immortal_suby immortal_suby is offline
Thread Killah
Alcyone Gold Contributor
 
Join Date: Feb 2001
Location: Greenville, SC
Posts: 5,835
Registered SVX
Finally got it off today. I was able to get the key out with much struggling and a vise grip. Even with the key out the sprocket wouldn't budge though.

Had to buy a gear puller to get it off. I had to use the gear puller all the way until it was off completely- it never loosened up. Ended up breaking a bunch of teeth off of the back of the sprocket from where the 3 gear puller tongs grab it- the ones that go for the crank angle/position sensors - so it looks like I have to get a new sprocket now or use the one off my svx. There was alot of rust on the shaft. Took some 400 grit to it and buffed it out.

Also changed out the oil pump, water pump, and cam seals. No drama on any of those other than the old water pump was rusty inside.

Used Beav's idea and made up a tool to hold the cam sprockets in place to break the bolts free.

Next up - valve cover gaskets, rear main seal, timing belt, and swap my intake over to this engine. Then it's time to put the engine in and get back on the street! Just waiting for my parts order to come in. If all goes well I might be back on the street next weekend!
__________________
Matt
Locker Link
2015 BRZ Limited 6MT
92 Ebony LS-L ECUtune Stage2av1, Z32 MAF, 370cc injectors, TomsSVX intake, BontragerWorks 22mm RSB #003, HID Hi and Lo beams, OT endlink and bushing mods, PWR Aluminum radiator, Harvey's QC shift kit, 2.5" flowmaster 80 exhaust, 17" Michelin Pilot Sport A/S, Poly sway bar bushings, Slotted Bradi rotors, AFBeefcake powdercoated calipers, 97 grill, and a huge set of air horns. 300,000 miles and counting
92 Ebony LS-L. ecutune stage1v4, motorsport 1pc pulley. Garage Queen - sold to Dad in upstate NY 155,000 miles
19 Subaru Ascent Premium - -Hers !.
89 DL 4x4 little red wagon - a.k.a. The immortal suby. 275k R.I.P.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 12:50 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
© 2001-2015 SVX World Network
(208)-906-1122