Wayne's Triumph Trident 750 engine overhaul by GrandPaul

[grandpaul]

Cylinder starting out with the center piston at TDC-

Outer pistons slipped in with just a bit of fiddling-

Wayne forgot to send me the cylinder base nuts & washers; so after this shot, I scrounged a couple for temporary security-

Coming right along

 

[DaveM]

Paul this is really starting to look good you have done some fine work here

 

[CarlS]

Good progress. It won't belong until she is ready to fire up.

 

[grandpaul]

Top end coming up. Copper-coat on the head gasket...

Didn't get any pix in between, but the head is done-

Installing the rockerboxes was a royal pain! The little rocker tips have a flat side that rides on the valve tip; that little ball can get turned around and screw you totally up! I really like the pushrod windows so you don't scarf up the inside of the rockerbox and/or trash the pushrods; I with Bonnies had 'em!

Now THAT is a visible picture of cam overlap!

Dinged intake on #3-

Fixed...

 

[grandpaul]

Alternator done-

I think this engine was rolled around the shop floor to get it crated; here's the tach drive -

Fixed with a thread file-

 

[grandpaul]

Crank aligned for ignition installation and timing. This is the "B" set of markings (later serial number)-

Yep, the alignment dowel hole in the crank is lined up just right (I don't have the dowel tool)

Installed the Tri-Spark rotor and set the trigger edge in position according to the instructions @ 10mm from the casting

 

[grandpaul]

Installed the ignition stator loosely-

Verified final alignment with trigger edge half way across the timing window-

Nipped everything up and scribed a reference mark next to the scale on the stator-

Note how tiny the 1 degree increments are; not much thicker than the reference scribe done with a razor knife!

I'll leave it to Wayne to strobe the timing and make one final heavy reference mark on the case with a sharpie or whatever...

 

[grandpaul]

Adjusted the valves...

Nipped up the rockerboxes-

Installed the locktab washer & tightened up the sprocket nut-

Bent over the locktab washer-

 

[grandpaul]

Clutch pack inner cover had a dinged breather tube-

Fixed-

Clutch pack opened up, very sooty in there; clutch disc is in good shape, I'm going to save it for a spare "just in case"-

Clutch pack after cleaning; new AP clutch disc-

At first, I though this was a mighty heavy lump of clutch, but it's actually not much heavier than a standard twin clutch, and it's supposed to be quite a bit stronger...

 

[grandpaul]

Scotched the clutch drive hub with a bolt against the case and torqued that sucker down to 60 ft/lbs-

Looking more and more like a Trident engine!

Clutch pack in place with a new heavy duty actuator rod-

Quite a few busted up cush rubbers; no worries, we have a new set-

 

[Sea Dog]

Paul,

Thank you for the fantastic progress report, photos and tips. Where can I lay my hands on the rocker adjusting screw tool you were using. Certainly better than a screw driver !

Cheers

SD

 

[grandpaul]

Forgot to mention, this is the stuff for the clutch friction surfaces. Note "600F" rating!

All new cush rubbers in place-

Nipped up and locktabbed-

 

[grandpaul]

Inner cover in place, oil pump & drive gear done-

Primary drive done-

Now just waiting on the outer cover needle roller to finish the job and crate it up!

 

[CarlS]

Great documentation and a beautiful job.

 

[grandpaul]

Oil pressure relief valve, sending unit, drain plug, sump plate and check valve installed-

Thrust bearing and primary chain oiler in place-

Needle roller in outer case, case installed, clutch actuator adjusted and nipped up-

...

 

[grandpaul]

Primary side complete-

Rear view-

Timing side -

Front view -

That's it for the engine, still have the carbs to do.

 

[DaveM]

That motor looks stunning

 

[CarlS]

Beautiful, Paul. Outstanding work. I am sure it will run every bit as good as it looks.

 

[grandpaul]

We stopped short of cad-plating all the nuts & bolts, it would have made that much more difference.

 

[CarlS]

That is the difference between a rider and strictly a show bike.