Heart Transplant

swooshdave · Dec 16, 2018

Again thanks to @Mike T for lending me the trick tools!

Wooden support for holding crankshaft via the wrist pins (or what ever you can stick through and are long enough).

I got this far (well, I got the nuts off the chain tensioner) but realized I don't have a 1/2W socket. I have a wrench but no way I can use that. Need to borrow that from @Mike T and then I can keep going.

With the Commando you really don't need a bunch of Whitworth tools. Apparently I need to expand my tool library...

Fast Eddie · Dec 17, 2018

swooshdave said:
$1200 water pump job. Still think I'm being harsh?

Well yeah, if it was Italian the rest of it would’ve disintegrated way before that pump !!

XTINCT · Dec 17, 2018

swooshdave said:
Electric water pump. Buried somewhere under the engine.

My son's 2005 Buick Lacrosse, engine had to be removed from car to replace water pump. $$$$
To me that is a bad case of " head up the arse syndrome ".

74ok · Dec 17, 2018

XTINCT said:
My son's 2005 Buick Lacrosse, engine had to be removed from car to replace water pump. $$$$
To me that is a bad case of " head up the arse syndrome ".

which engine?

fiatfan · Dec 17, 2018

I don´t understand how you got it hooked up to the stand....? Doesn´t look right.

74ok · Dec 17, 2018

looks like 2 engine mounts bolted up at the front & 2 ziptied at the back

CanukNortonNut · Dec 17, 2018

Maybe a little use of a rat tail file to elongate the hole or round off the corners may get the holes to line up. Or drill the hole larger to pass the bolt or stud to pass through.
doesn't look like a big deal.
T

L.A.B. · Dec 17, 2018

fiatfan said:
I don´t understand how you got it hooked up to the stand....? Doesn´t look right.

Engine fitted to the stand facing in the wrong direction?

https://www.accessnorton.com/NortonCommando/efi-norton-walkaround.21999/page-2#post-328536

Hortons Norton · Dec 17, 2018

Or turn it around?

Hortons Norton · Dec 17, 2018

Beat me to it L.A.B.

swooshdave · Dec 17, 2018

The hell if you guys aren't useful every once in a while...

Not like I didn't post a picture on page 1 with the engine in the stand. Sheesh.

Hortons Norton · Dec 17, 2018

LOL can't see how bad it looks in that photo.

CanukNortonNut · Dec 17, 2018

LOL how bout that...Fixed!

swooshdave · Dec 17, 2018

CanukNortonNut said:
LOL how bout that...Fixed!

Now it is. Didn't get the socket today and too stormy out to go get it. It will need to wait.

I did remove all the remaining crankcase screws and bolts. They all came off easily. As soon as I get the timing gears and stuff off the crackcases should just fall apart, right? Or does this Combat-era non-Combat have a ball bearing on one side?

swooshdave · Dec 21, 2018

So this little bugger was on a little tight. Doesn't help that it was a cold in the garage.

Only managed to break TWO of @Mike T's tools...

This wrist pin holding board was the first to fail. It's just fiberboard so I'll make a new one out of stronger wood.

The second tool to fail was the pinion puller. Fortunately it still did the job with only two arms. Does anyone have a spare one laying around they want to sell?

The good news is that it should be ready to split, what else could possibly go wrong???

motorson · Dec 21, 2018

Here is how I keep the crank from turning. I also have the cut out timing cover to support the idler sprocket shaft while working on the cam nut.

swooshdave · Dec 21, 2018

Well, shoot. Now what do I do? The crank assembly feels perfect. I'll recheck but I don't think there is any play at all.

The thought was to just clean the cases and reassemble. They are obviously filthy.

I need to look closer but these may not be superblends, which on a non-Combat engine might be ok.

Clean, reassemble, then start sorting out what to do with the top end. The barrels are not great and the head is suspect (very). I don't know if the barrels on the Combat survived the flailing rods but the head should be ok. It might end up being a mishmash of parts.

swooshdave · Dec 21, 2018

motorson said:
View attachment 7725Here is how I keep the crank from turning. I also have the cut out timing cover to support the idler sprocket shaft while working on the cam nut.

Like most things there is a right tool for the job at the right time. The board to support the wrist pins works great when... the pistons are off. But in many other cases another method will need to be used to hold the crankshaft.

Fast Eddie · Dec 22, 2018

Swoosh, NEVER ask what could go wrong !!

You gotta split the crank mate. If the oil had that much crud in it then you must check and clean the inside of the crank.

Big end shells are dirt cheap, false economy not to give the journals a little polish with super fine emery and fit new shells as a matter of course IMHO.

I have re used main bearings on Triumphs before. But on a Commando, if they’re not superblends, I would definitely fit new superblends.

Having come this far, don’t cheap out, it would be a huge pain in the ass if you had to do it all again too soon. Do it right and it’ll probably outlast you.

swooshdave · Dec 22, 2018

The idea behinds the engine is to just get it running until I can rebuild the original engine. So as long as the parts are serviceable they will be reused.

Because I will need to do it all again soon.

Heart Transplant

swooshdave

Fast Eddie

XTINCT

74ok

fiatfan

74ok

CanukNortonNut

L.A.B.

Moderator

Hortons Norton

Hortons Norton

swooshdave

Hortons Norton

CanukNortonNut

swooshdave

swooshdave

motorson

swooshdave

swooshdave

Fast Eddie

swooshdave

Similar threads