Engine out of a phase 1 classic WRX MY1993, square markings where the starter motor fits to the top left of the flywheel.



Also, I have a spare engine from a MY1994 Legacy GT could that engine be a closed deck block also? The engines not out the legacy so havent stripped it to look for markings etc.

Cheers for any info!

Gaz

 

Apparently that is the way to tell without taking it apart. There are referred to on here as cross hatchings.

 

Yeah I had read several times about the cross hatchings but was never sure exactly what I was looking for and where they would be found to confirm its a closed deck.

Hope the legacy engine is a closed deck block too but not sure if they were fitted to the legacys?

Cheers,

Gaz

 

Sorry but what is the difference between a closed and open deck block?

 

I'm sure they can be normally seen not to far from the engine type, the EJ20 part on the top of the block, in the middle. but think they are pretty much all over, so the one you have in the pic is a CDB.

More info here: need replacement shortblock, few questions - Subaru Impreza GC8 & RS Forum & Community: RS25.com

 

From memory, according to API Dave, THE ONLY way of determining a CDB (without looking inside it obviously), is the cross-hatchings around the oil filter housing. Some blocks have the x-hatching elsewhere too, but this appararently is NOT conclusive (only around the oil filter housing is).

 

fieldy, do a search re ODB and CDB... all will be revealed...

 

Ok will do thanks a lot!

 

Cool, yea I remember reading that before too, thinking about it.... but I dont think I checked around the oil filter housing But then again that is a method to tell without taking the engine out.... I read that around the starter motor (as in this pic) also means its a CDB but not many people have the engine out to check this location?

Hopefully Dave will be able to confirm or not if thats a sure way to tell... I would go look round the oil filter housing but the cars some 200miles away from me at the mo!

Cheers again,

Gaz

 

Bionic vision, perhaps?!

 

Absolutely correct. The oil filter housing is a definite time after time.

The other markings can/ might be an indicator, but the oil filter housing is the one to rely upon.

David

 

I'm glad I quoted you correctly, Dave. Phew.