pginter96 Posted December 1, 2015 Share Posted December 1, 2015 Hi all, I've been working on an engine for my car recently, decided to go for a simple 2.5 swap, same motor, instead of the EJ22 swap this time. my car is a 98 Legacy Outback wagon 5 speed. 240K on original engine. I lost compression on cyl. 2 and get a miss on idle, 25% leakage through the crank case. I bought a running and driving 99 Legacy Outback auto out of someones front yard for $300, and have put over $800 in head gaskets, engine seals, timing belt component kit, clutch, the usual before an engine swap. a thought just occurred to me though... Is there a difference with the end of the crank for an engine from an automatic that would make it incompatible with the manual? I have zero experience with manual transmissions other than removing one or two and daily driving one. I cant tell on the engine stand with the flexplate on how a pilot bearing would sit in, but the crank appears to have a provision for an input shaft. my teacher works at a subaru dealer and likes to sound like he knows more than he does, and he says the new FB motors are transmission specific. He has no experience with the beloved EJ25D. It would be a real bummer after putting so much money into it... Quote Link to comment Share on other sites More sharing options...
desertsubaru Posted December 2, 2015 Share Posted December 2, 2015 No difference in the crank between those two. Remove flex plate and bolt flywheel in its place. Don't forget to put a pilot bearing in the crank though. Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted December 2, 2015 Share Posted December 2, 2015 Unbolt the flexplate, bolt the flywheel on. Torque the bolts to 65 ft lbs. Make sure to pay attention to the length of the bolts that hold the flywheel on. Often the bolts used on a flexplate are shorter, but still long enough to just thread in with a flywheel, but they only grab a few threads. Have to use the longer bolts with a flywheel. That's 23lbs of steel and the bellhousing ain't gonna hold it back if it decides to come loose. Pilot bearing goes in the center of the flywheel. I usualy put a couple drops of blue thread lock on the outside of the bearing and it should tap into place with a large socket and a hammer. Have had a few that I was a bit concerned how easily they tapped in, which is why I started using the threadlock. Quote Link to comment Share on other sites More sharing options...
pginter96 Posted December 2, 2015 Author Share Posted December 2, 2015 Awesome, thank you! Quote Link to comment Share on other sites More sharing options...
matt167 Posted December 2, 2015 Share Posted December 2, 2015 yep. The only engines in those years that were any different between auto and manual were ej22s and autos have egr, manual does not Quote Link to comment Share on other sites More sharing options...
ccrinc Posted December 2, 2015 Share Posted December 2, 2015 There is a difference you should be aware of: the engine from an automatic does not have the bracket on the oil pump which keeps the timing belt from jumping if the car rolls back a bit like one out of a manual does. You know how a manual car does: it rolls back slightly when you stop if you don't have the E-brake set. Plus the EGR setup Matt noted. Also, '98 is the year that Subaru went from a center thrust to rear thrust crank and 4 bolt to 8 bolt bell housing. 6/98 to be precise. That said, the rear of the crank bolting to your transmission is identical on both. Emily 2 Quote Link to comment Share on other sites More sharing options...
pginter96 Posted December 8, 2015 Author Share Posted December 8, 2015 There is a difference you should be aware of: the engine from an automatic does not have the bracket on the oil pump which keeps the timing belt from jumping if the car rolls back a bit like one out of a manual does. You know how a manual car does: it rolls back slightly when you stop if you don't have the E-brake set. Plus the EGR setup Matt noted. Also, '98 is the year that Subaru went from a center thrust to rear thrust crank and 4 bolt to 8 bolt bell housing. 6/98 to be precise. That said, the rear of the crank bolting to your transmission is identical on both. Emily But my 99 Legacy parts car was a 4 bolt bell housing... It did not have the original engine though Quote Link to comment Share on other sites More sharing options...
ccrinc Posted December 9, 2015 Share Posted December 9, 2015 But my 99 Legacy parts car was a 4 bolt bell housing... It did not have the original engine though Um, yeah. I misquoted myself: it's the other way around. They went from an 8 bolt to a 4 bolt. Otherwise, my post was correct. Emily Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted December 9, 2015 Share Posted December 9, 2015 (edited) 89-98 all EJ motors are 4 bolt bellhousing. 99-up EJ motors are 8 bolt bellhousing. Engine swaps are common in the 96-99 Outbacks. No surprise to find a 4 bolt motor paired to an 8 bolt transmission. Edited December 10, 2015 by Fairtax4me Quote Link to comment Share on other sites More sharing options...
ccrinc Posted December 9, 2015 Share Posted December 9, 2015 89-98 all EJ motors are 4 bolt bellhousing. 99-up EJ motors are 8 bolt bellhousing. Engine swaps are common in the 96-99 Outbacks. No surprise to find a 4 bolt motor paired to an 8 bolt transmissions So, I mis-misquoted myself? Dang. Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted December 10, 2015 Share Posted December 10, 2015 You were right the first time! 1 Quote Link to comment Share on other sites More sharing options...
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