Why is my Triumph getting so bloody hot?

[anonymous-user]

Yep, that's the plan.
Seems I'm in the realms of systematically replacing the whole cooling system now.

[Tango13]

How many miles has the bike done? Sounds like the radiator is fubar.

I had the rad on my 955 Daytona re-cored at 18k and the bike now runs much, much cooler.

[anonymous-user]

The bike's done a whopping.....wait for it.....105,000 miles.
I thought rad too, but I've just had it off the bike, flushed and pressure tested.
All good.
While it's drained I'm gonna whip the 'stat out and see what gives....

[CaptainSlow]

105,000 miles! Go on, treat yourself to a new bike, you only live once (can't take it with you etc etc).

[anonymous-user]

Well yeah, that's on the cards too.
Thing is, in all those miles all it's needed is a new clutch cable, a new generator stator and now, what ever's causing this overheating issue.
I kinda like my bike, and part of me feels obliged to hang on to it and keep it going, in return for so many faultless miles.

[anonymous-user]

So the new coolant certainly helped, as did a flush with some off-the-shelf snake oil.
Bike is still getting 'kin 'ot, not helped by the warm weather, but bizarrely the coolant is no longer boiling as much as it did even though the bike's temperature is still up.
Got some citric acid on order to give the rad a proper de-gunk.
I'm almost certain it's the coolant not being cooled enough itself that's causing the problem.

[Prof Prolapse]

You taking account of the ambient temperature drop?

Only this is exactly the sort of anecdotal evidence "snake oil" salesmen feed on...

[anonymous-user]

Yes, taken that in to account.

[Gunk]

Crossflow Kid said:

Well yeah, that's on the cards too.
Thing is, in all those miles all it's needed is a new clutch cable, a new generator stator and now, what ever's causing this overheating issue.
I kinda like my bike, and part of me feels obliged to hang on to it and keep it going, in return for so many faultless miles.

fk the sentimentality, scrap it and buy a new 'un

[Gunk]

Crossflow Kid said:

Got some citric acid on order to give the rad a proper de-gunk.

You called!

[bitwrx]

Water pump?

Would the impeller wear at what is a relatively high mileage for a bike?

[anonymous-user]

Water pump is next on the list although all my digging on t'internet has suggested they either work or they don't.
I've also found out tonight the "new" rad cap I put on it last week is relieving at 10psi....and it should be 15psi.

[CaptainSlow]

I suppose one positive is that by the end your replacement parts you'll have got yourself a new bike.

[pozi]

CaptainSlow said:

I suppose one positive is that by the end your replacement parts you'll have got yourself a new bike.

Trigger's broom

[anonymous-user]

Hardly.
This is the first major failure in a decade and 100k.

[anonymous-user]

So it appears a large Triumph dealer that may or may not be near Heathrow managed to sell me a faulty "new" rad cap.
Got another one from a different source today, and the temperature come right back down.

[998420]

CaptainSlow said:

Change the rad cap.

Credit where credit is due...

[Prof Prolapse]

Lol, first answer before the part throwing began as well!

I had no idea a faulty rad cap would cause those symptoms. Useful thread!

[CaptainSlow]

998420 said:

CaptainSlow said:

Change the rad cap.

Credit where credit is due...

[anonymous-user]

Not so fast...
Out on it again today and it's STILL doing it.
Ride out....temp gauge relatively normal, coolant level up/boiling.
Ride home...coolant level relatively normal, temperature gauge up.
I give up......
Just an aggressive clean of the rad interior to do and after that it's scrap.