Kirby Rowbotham oil filter conversion availability

B+Bogus said:
Yes the flywheel is a straight swap - I happen to know a guy who has a spare ;)
Standard inlet cam, exhaust cam with inlet profile, ISTR them being either Spitfire or Thruxton profile? Memory isn't what it was when I built it.
Head ported & flowed to take 32mm carbs.
It's still remarkably tractable at low revs, and ticks over like a standard T140.

I did get hold of a Tracey Hurricane style tank/seat a few years back which would have suited it well, but I'm getting a bit old for that kind of bling.
Click to expand...
That sounds like a nice set up, and not dissimilar to what I’m aiming for.

It’s Spitfire profile cams BTW. I’m using them too. Mine is based around a ‘long rod’ 650 motor, I’ve got JS lightweight Carrillo rods and MAP 750 billet pistons that’ll be running in Morgo barrels.

Haven’t quite decided about head and carb specs yet.

I won’t be racing it, but I will be revving the tits off it !

I’ll have yer flywheel, I’ll message you.

A T140 is a beautiful thing in its own right mate… don’t need no stinkin’ faux Hurricane bling !
 
I have an oil filter on the pressure side of my Rickman Triumph, same basic principle as the Kirby Rowbotham modification. This was done but my pal, the PO, due to concerns about potential corrosion inside the Rickman frame. The engine is next on the list so when I get in to it I’ll post some pics.

Dave
 
Fast Eddie said:
I pretty much agree.

The ‘but’ is that even with a return filter (ie on a Commando) you’ll still see sludge build up in the oil tank over time. So there is still ‘stuff’ in the oil.

Filtering between the pump and crank guarantees the crank getting the cleanest oil possible, especially if it’s as well as a return filter.

Of course, Triumph addressed this with the really quite effective sludge trap. Even with a filter in the system, a Triumph sludge trap still collect sludge.

So… now to the crux of my matter… I’m toying with the idea of modifying a Triumph crank and possibly removing the sludge trap altogether. Hence my thinking about the pre crank filtration.
Click to expand...
I’m wondering this same thing- once all the parts come back from machine shop jail I was considering not putting the trap back in at all since there’ll be a filter kit installed…
 

Similar threads

pouchy750
  • Locked
oil filter conversion part number
Replies
14
Views
2,521
kommando
kommando
Chris T
  • Locked
My 1970 Roadster Rebuild
2 3 4
Replies
63
Views
10,227
DogT
DogT
Back
Top