650 seca engine removal

Hey guys! I need a small bit of advice for removing the engine from a 1982 650 Seca.

Everything is disconnected, including all engine mounting bolts. It's super heavy and I'm planning on laying it on it's side as many of you have suggested and lifting the frame off to get it out. I noticed the oil filter housing is in the way so I took that off. The only issue I'm having now is how you're supposed to manoeuvre the engine out of the frame with the oil cooler pipes in the way. Is it just common practice to take them off? It seems as though the pipes that come out of where the cooler and oil filter housing meet are very much in the way of the frame. I did try to take the cooler off, but then I noticed it's rather difficult to get the the top bolt on the right hand side as the engine mounting is in the way.

Just wondered if anyone had an easy trick for this?

 

Assuming this is the stock, factory cooler:

Not sure what "top right side bolt" you are trying to remove............the radiator is held to the frame cross bar via 2 bolts located UNDER the radiator. The hoses are held in place with a clamp bracket which is secured by a single bolt. The hoses (at the engine) are held to the adapter plate via 2 bolts (on each hole).

I would remove the 2 bolts that hold each hose to the engine plate, remove the bolt the clamps the hoses to the bracket, and remove the 2 bolts that hold the cooler to the frame, and then lift the radiator WITH HOSES STILL ATTACHED off the frame. Note that the radiator is fitted into a rubber bushing at the very top/center of the radiator, and goes into a "loop" bracket welded to the frame, so once all the bolts are removed, you actually have to "LOWER" the radiator to get the peg out of that loop bracket.

 

I've removed the clamp bracket and bolts that mount the the radiator to the frame (the bolts/brackets circled in blue). It's the actual pipe unions from the cooler to the engine block I'm concerned about (the ones I've circled in red). Does the whole oil cooler unit have to be removed to take the engine out?

 

Not sure, as I've never tried the engine removal procedure that you're attempting on a bike with an oil cooler.

If the bolt on the oil cooler line (to the adapter plate) cannot be removed, you can leave the hoses connected to the round adpater plate, and just remove the entire adapter plate (the adapter plate is what the finned oil filter cover sat on top of). The adapter plate is held to the engine case with a large (32mm) bolt....remove that bolt and the adapter place is now free (still attached to the hoses) and now the entire assembly (adapter plate, hoses, radiator) can be removed.

You can see this bolt at the bottom of page 5 at: https://www.xj4ever.com/spinon kit v2.1.pdf

 

I thought I'd take some photos to try to illustrate my point a bit clearer, mainly for future reference and others who may find this problem. Hopefully you can see in the phots that that oil cooler pipes protrude from the oil filter housing and up, very much in the way of the frame crossbar. And you can hopefully also that the engine mounting is in the way of that one 5mm hex bolt. Realistically I could just angle grind part of my 5mm allen key off and use that to get it out, or get a smaller tool. Would most likely require new o-rings on the pipe connecters too.

 

As posted above and per the Haynes manual, remove the oil cooler distributor block by unscrewing the large bolt.

The o-ring is the same as that required for the oil filter housing.

It works, I've had the engine out of my UK bike which is the same as a Seca. From what I recall, if the swinging arm is removed, there is more wiggle room around the gearbox output shaft flange to shaft UJ.

 

Apologies the delay, I got the old engine out and the replacement in. You guys were right, removing the 32mm nut on the adapter plate means you can take the whole oil cooler unit out as one. After that the engine came out easy. Initially I removed the oil cooler hoses separately, but the adapter plate still attached it's almost impossible to remove the engine unit as it gets stuck on the mounting brackets. Just thought I'd confirm for anyone else that gets stuck. Thanks all, your help is, as always, greatly appreciated.