Triumphrat

tri650 · 08-20-2007, 11:49 PM

OK, I am following the Hughie DVD as I tear down my 70 TR6 650. I am to the point where I am splitting the cases. In the video he gets out the soft hammer and whacks on the crank from the drive side until it moves toward the other side - then the case splits on the drive side. He then whacks on the other side to get the crank separated from the case.

I have been whacking on the drive side and the crank is not moving. I am afraid to hit it too hard - am I missing something here? I know they show a special tool for removing the crank in the manual, but Hughie hits it with the hammer.

I will try and get a screen shot from the DVD of what I am talking about and post it in the morning.

GrandPaulZ · 08-21-2007, 11:09 AM

I sure hope you removed ALL of the case bolts, AND the two screws inside the cylinder mouth, one fore and one aft of the opening.

tri650 · 08-21-2007, 12:03 PM

Yes - I checked this over very carefully. All bolts are out.

GrandPaulZ · 08-21-2007, 01:42 PM

GET A BIGGER HAMMER!

Once you get the cases to budge, they should pop apart easily.

Squirt a lot of WD40 in the drive side main bearing, it should "walk" out of it's race. Try to have someone smack on the crank while you spin it carefully (protect the rods).

tri650 · 08-21-2007, 03:12 PM

Thanks. I was just a little unsure of myself - whacking on one of the more important parts of the motor. I will give it a liberal spray of wd-40. Is there anything else I can do to help this move?

quagmire · 08-21-2007, 03:26 PM

make sure the hammer is made of a softer material than the object you are hitting. Don't use a standard hammer, it's not good. Don't ask how I know. It was during my naive time of my restoration. Get a nice rawhide hammer.

tri650 · 08-22-2007, 11:04 AM

***??? I bought two soft head mallets and beat the living crap out of this thing and still not budging. I even moved the crankshaft as I was beating on it. I think I ruined one of the hammers. I re-checked to make sure that no bolts were still in place. This thing is not moving at all. What the hell am I doing wrong?

quagmire · 08-22-2007, 09:45 PM

You got me???? Not that it makes you feel better but mine split without any effort, but everything about my engine came apart easily. There has to be a screw somewhere, sis you walk thru the video again?

tri650 · 08-23-2007, 02:16 AM

Success!! I beat the hammer around the cases and that seemed to get them going. I split the drive side but am still beating on the crank to dislodge it from the tranny side. I thought one success was enough for tonight, since I did not get started until late. I should take a picture of the plastic hammer I bought - it is mangled. Not sure why this was so tough, but I bet I hit that crank about 200 times.

Now for the stupid side. I did hit the crank on the drive side with a metal hammer. Not sure if this did any damage or not - I know this was stupid but I was so frustrated that it was not moving. I think I may have put a little edge on the crankshaft where I hit it. Is this a big deal? I will take a pic to show what happened and post it to the site tomorrow.

GrandPaulZ · 08-23-2007, 11:55 AM

The drive (clutch) side of the crank is not as sensitive as the timing side, becasue that endof the crank needs to be good and true to properly seal with the timing cover oil seal. That is CRITICAL to proper engine oiling and long life.

Just dress the crank end with a file, take your time.

Meanwhile, you should be spraying liberal doses of WD40 at the crank/bearing joining area every few hours and TAPPING it with a small hammer to help the WD work into the joint.

After a day of this, a good couple of whacks with a new rawhide, wood or rubber hammer ought to free it off.