ej22 shudder on startup and shutdown

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Dupree
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ej22 shudder on startup and shutdown

Post by Dupree »

I have a new to me 1990 ej22 legacy 5 speed, when i start it it will shudder slightly, just for that split second then it idles fine and smooth. When I shut it of same thing as the engine winds down it shudders at the last second. I assumed a loose motor mount transmission mount or strut rod, however I checked it out tonight and they all look solid and tight, so I am at a loss as to what she is doing, is this a more common thing with the manuals or what do I look at otherwise. sorry just new to the manual subies this is my first one didn't know if it was temperamental that way or something
1990 Legacy L ej22 5 manual 140k
1994 Legacy Alpine ej22 4eat 250k
2001 Outback ll bean ez30d 4eat 161k
2013 Tribeca Limited 3.6r 5eat 35k
Subaru ea81 powered sand rail
Legacy777
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Re: ej22 shudder on startup and shutdown

Post by Legacy777 »

Any chance you could take a video of it occurring? Have you had someone else start and stop the engine so you can look at the motor and see if it's moving more than normal?

The mounts may "look" ok but be bad. The engine mounts are liquid filled and if they're torn they usually have some "goo" leaking out of them.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
Dupree
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Posts: 8
Joined: Thu Feb 02, 2012 5:07 am
Location: Utah

Re: ej22 shudder on startup and shutdown

Post by Dupree »

I lifted the motor and transmission, and could not see any of the mounts showing as loose, I also checked the pitch stop seems tight.

However the engine noticeably shakes when I start it more so when it shuts down, and when revved up, so I do have a loose mount just not finding it from the drivers seat looking at the engine it is rotating counter clockwise for its major movement
1990 Legacy L ej22 5 manual 140k
1994 Legacy Alpine ej22 4eat 250k
2001 Outback ll bean ez30d 4eat 161k
2013 Tribeca Limited 3.6r 5eat 35k
Subaru ea81 powered sand rail
Legacy777
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Site Admin
Posts: 27884
Joined: Tue Oct 15, 2002 11:37 am
Location: Houston, Tx
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Re: ej22 shudder on startup and shutdown

Post by Legacy777 »

Can you elaborate on what you did when you said you lifted the motor and transmission?

Did you loosen the bolts holding on the mounts to the subframe and try to lift the motor & trans with an engine hoist?
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
Dupree
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Posts: 8
Joined: Thu Feb 02, 2012 5:07 am
Location: Utah

Re: ej22 shudder on startup and shutdown

Post by Dupree »

i pulled it up on ramps then put my floor jack under with a block of wood and took the weight off the motor at the oil pan. I watched closely as i lifted and them tried to move the motor around and tried to shift it. I seen no movement nor could I get any movement wiggling the engine, it simply lifted the car when It lifted the motor. Then I lifted the transmission with a block likewise just putting enough pressure to slightly lift the transmission no sign of separation on the mount and very little lateral movement. she seems tight. However once i start it proves other wise and shakes and shudders as it starts and shuts down. I am going to have to put it on the car lift and try a little more moving effort I am all but sure its a loose mount
1990 Legacy L ej22 5 manual 140k
1994 Legacy Alpine ej22 4eat 250k
2001 Outback ll bean ez30d 4eat 161k
2013 Tribeca Limited 3.6r 5eat 35k
Subaru ea81 powered sand rail
Dupree
In Neutral
Posts: 8
Joined: Thu Feb 02, 2012 5:07 am
Location: Utah

Re: ej22 shudder on startup and shutdown

Post by Dupree »

if you don't mind me asking on a manual 1st gen preface-lift what mount is the one usually replaced the most frequent, whats the weak link
1990 Legacy L ej22 5 manual 140k
1994 Legacy Alpine ej22 4eat 250k
2001 Outback ll bean ez30d 4eat 161k
2013 Tribeca Limited 3.6r 5eat 35k
Subaru ea81 powered sand rail
Legacy777
Site Admin
Site Admin
Posts: 27884
Joined: Tue Oct 15, 2002 11:37 am
Location: Houston, Tx
Contact:

Re: ej22 shudder on startup and shutdown

Post by Legacy777 »

I don't know if there is a mount that is "most frequently" replaced due to failure. I know most of us install the hardened rubber mounts because they are more performance oriented. So I'm not sure if we have a large enough data set to say which mounts fail most. I've seen probably more motor mounts replaced due to failure, but like I mentioned it's typically because of a tear and you can see liquid coming out of the mount.

Any chance you can get a video of the start up and shutdown, and pictures of the mounts?
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
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