Rocketdave
.020 Over
Hi all - I've already read a lot of threads on here but mine is a little more specific and would like to get the benefit of the collective opinion.
I have a 2010 Rocket Tourer and it has had occasional issues with the cooling system i.e. the cap went and it had a stone hole in the RAD. It also had the front end rebuilt after some insurance work (why they had to touch any of that, god only knows, as the only damage was cosmetic when someone kindly knocked the bike over when it was on its side stand).
Anyway, that aside...
If I go on a ride and the weather is even vaguely warm, everything is normal when in use and everything does as it should.
However, when I stop occasionally the coolant from the header tank deposits itself under the bike.
I've changed the radiator cap (twice - current is a 1.4Bar versus the 1.2 genuine Cap (I did that when the vacuum/return valve started weeping out of the cap itself).
Rad was fully reconditioned (red herring maybe - the symptoms were there before and after this).
So I suspect the water in the heads is boiling when I stop the bike (often the fan is running at that point which goes off when I turn off the ignition) which creates excess pressure which blows out the water in the header.
I've just bought a flushing fluid and new antifreeze in case the repairer filled it with an antifreeze that reacted with the anti-freeze that was already in there and of course I've also bought more anti-freeze to fill it when flushed. Not done it yet, its en route from the supplier.
Given I think this is a boiling issue is there anything else I can do to reduce the risk of this as currently I carry fluid to top up the header but that by its very nature is going to impact the anti-freeze/water ratio and to be blunt I'd rather it didn't blow out in the first place. Change the RAD cap to a 1.8 or is that now in to risky territory with the hoses and Radiator pressures etc>
I have a 2010 Rocket Tourer and it has had occasional issues with the cooling system i.e. the cap went and it had a stone hole in the RAD. It also had the front end rebuilt after some insurance work (why they had to touch any of that, god only knows, as the only damage was cosmetic when someone kindly knocked the bike over when it was on its side stand).
Anyway, that aside...
If I go on a ride and the weather is even vaguely warm, everything is normal when in use and everything does as it should.
However, when I stop occasionally the coolant from the header tank deposits itself under the bike.
I've changed the radiator cap (twice - current is a 1.4Bar versus the 1.2 genuine Cap (I did that when the vacuum/return valve started weeping out of the cap itself).
Rad was fully reconditioned (red herring maybe - the symptoms were there before and after this).
So I suspect the water in the heads is boiling when I stop the bike (often the fan is running at that point which goes off when I turn off the ignition) which creates excess pressure which blows out the water in the header.
I've just bought a flushing fluid and new antifreeze in case the repairer filled it with an antifreeze that reacted with the anti-freeze that was already in there and of course I've also bought more anti-freeze to fill it when flushed. Not done it yet, its en route from the supplier.
Given I think this is a boiling issue is there anything else I can do to reduce the risk of this as currently I carry fluid to top up the header but that by its very nature is going to impact the anti-freeze/water ratio and to be blunt I'd rather it didn't blow out in the first place. Change the RAD cap to a 1.8 or is that now in to risky territory with the hoses and Radiator pressures etc>