keith-im sorry-help!!

batman · Scooby Slapper Joined: 06 Feb 2002 Karma :

my bike is overheating now very badly
i think i may have damaged the engine just goin down the road a few times
we took it apart again searchin for blockages etc, but the radiator, engine and coolant tank are all full of coolant and seem fine
any ideas why it is overheating so badly?
thanx

Kris · World Chat Champion Joined: 03 Feb 2002 Karma :

Hmmm
Dont think you should have messed with your Aprilia matey. Crying or Very sad

Why didn't you use a dealer?

Keen · World Chat Champion Joined: 03 Apr 2002 Karma :

Thats like a worst nightmare come true- mess about with your bike and fuck it up Sad

(I'm sure keith will post something more constructive soon)

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

My RS125 started overheating a while back when I had done the rings. Turned out I had used too strong a mix of antifreeze in it. Took some out and replaced it with water and the bike was fine. Antifreeze is very thick, and an impellor cannot pump it round that well.

After that, check for an air leek (use the bleed screw to get any air out of the system) and check the thermostat is OK (probably, as not heard of one going on an Aprilia 125)

All thebest

Keith

batman · Scooby Slapper Joined: 06 Feb 2002 Karma :

i put soem fuck off -36 degree shit in
its for cars
ill try that tomorrow-i already did the valve thingy
im just praying now that i didnt fuck it up driving it around when it was overheating so bad-i went out at night and it only rises when stopped, which i wasnt for about 10 mins, so when i did the thermo hit 90!
please dont be scorched cylinder/fucked rings :(
thanx anyway man

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

Think a car water pump is rather better at pumping round than the small impellor fitted to a bike. One thing to check is whether the radiator is hot when the engine is. When I had too strong an anti freeze mix in place the engine was hot, while the top of the radiator was slightly warm and the bottom cold. My bike got somewhat hotter than 90 degrees.

All the best

Keith

PS - you will need some antifreeze in place to stop the water corroding the alloy of the engine, but pure water is a very good coolant.

Ropehead · Could Be A Chat Bot Joined: 02 May 2002 Karma :

any ides about my bike its not getting up to temp?
it one point it was over heating and when i looked the impeler wheel had snapped of so i glues it back with some epoxey resin worked a treat, iv putt a new thermostat in 2 still not heating up fully only 1/4 ish..

if i have 2 much water E:g a weak coolent mix could that cause it 2 not get up to temp?

THanks Guys Laughing

TZR 125 bye the way

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

Not sure, but on any occasion where I have overfilled the colling system (on a car) the resulting excess preasure has resulted in the car overheating. My guess would be the thermostat you have put in is not correct. Other point to check is that the temp gauge is reading correctly (air air bubble round the sensor could cause odd readings), but to be honest it is about 12 years since I last rode a TZR125

All the best

Keith

batman · Scooby Slapper Joined: 06 Feb 2002 Karma :

hey keith i was just wonderin how long it takes before new rings are run in
i need to know when i can hit the powerband again!
i think however the engine might be arsed, find out for sure tomorrow whether the coolant fun has affected it

tanner18 · Traffic Copper Joined: 13 May 2002 Karma :

the temp gauge on my nsr 2000 only just comes out of the blue is this a good thing should it be in the middle or is mt temp gauge likely to be knackered please help
____________________
inline 4's rule

Ropehead · Could Be A Chat Bot Joined: 02 May 2002 Karma :

will running it at a lower temp do any damage?

batman · Scooby Slapper Joined: 06 Feb 2002 Karma :

my mates nsr temp guage never gets above half way ever
i think it may be an nsr thing

TiN · Pocket Tin Joined: 14 Feb 2002 Karma :

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

Except when the antifreeze mix was too strong the RS has never had an overheating problem. The older '87 model AF1 would, but only slightly (they also were meant to run at a lower temp).

The one that gets real hot very quickly is the Bimota. Instant boil in tthe bag if you are wearing waterproofs and get caught in traffic

All the best

Keith

batman · Scooby Slapper Joined: 06 Feb 2002 Karma :

its stopped now
everythin is workin, but the horrible sound persists!
the piston/rings/cylinder are all perfect, but still it sounds deep and heavy
i havent been able to trash it yet, only 60km done since rings put in, but i have a smelly feelin it wont pull as well as it did!
thanx keith for the help
and any other suggestions