1996 Triumph Trophy 900cc Coolant Change Query

Hi all,

Disclaimer: I'm not familiar with Triumphs - I inherited the bike but am looking to sell so I wanted to give it the once over before I do.

Drained, flushed & changed the coolant yesterday but she only took 2.2ltrs not the specified 2.8ltrs. I followed the Haynes manual almost to a tee. Why wasn't there the room for the last 0.6ltrs?

Here's what I did:

- Drilled the rivets & removed the expansion tank to clean the sludge with a handful of nuts then refitted it
- Whilst on the centre stand I removed rad cap & then the water pump bolt to drain the coolant
- Then removed the engine jacket bolt to drain more coolant
- Put the bike on side stand & removed a small rubber hose from the bottom big rad pipe (looked like the lowest point)
- Stuck a hose in the top of the rad & flushed it out till it all ran clear from the three outlets
- Put the bike back on its centre stand & refitted both bolts along with rubber hose
- Slowly poured in the coolant being careful of air pockets till it brimmed the top of the rad & refitted the cap
- Filled the expansion tank to the max level
- Fired up the bike & idled for 5-10 mins with the occasional blip of the throttle
- Let it cool down & released pressure from the rad cap then topped that back up along with the expansion tank to the max level

I've still got 0.6ltrs of coolant left? Why?

Cheers!