ST1100 oil cooler

Bikeric

Bikeric

Joined
Sep 5, 2018
Messages
1,710
Age
71
Location
Newlyn, Penzance, Cornwall, UK
Bike
2000 ST1100Y
Hi there all, I have a chance to buy an ST1100 oil cooler - is there any point in putting this on my 2000 Pan which did not come with one? Any advice you can give will be welcome.
Regards
Eric
 
dwalby said:
no.

its not broken, don't fix it.
Click to expand...

Agreed, no need for one. I've never heard of anyone putting one on. Normal maintenance and it will last longer than you.
 
I remember when Lockhart make some oil coolers I couldn't wait to put one on my 7.5 K4. I found some aluminum finned lines to help cool the to and from. I was state of the art. LOL

But I really had no idea how much it helped if at all. Depending on who you talk to (and when) Honda can do no right or do no wrong. When did they start with oil coolers on the ST?

'If it ain't broke' is one way to go. It may not need one and/or it may not make a difference over the time you have the bike. I'd want to know- if Honda added one why did they bother? I'd be to lazy to 'update' with a cooler but I'd want to! :D
 
ST Gui said:
But I really had no idea how much it helped if at all. Depending on who you talk to (and when) Honda can do no right or do no wrong. When did they start with oil coolers on the ST?
Click to expand...

1990-1995 models had them for the oil cooled alternator.
 
Thanks for the feedback guys. Doesn't seem worth it as not overheating since chopping leaky pipe to overflow back by an inch at the radiator end. Bike was going into severe overheat mode prior to this! Also losing coolant especially at traffic lights or in heavy traffic (stop/start)
Regards
Eric
 
Bikeric said:
not overheating since chopping leaky pipe to overflow back by an inch at the radiator end.
Click to expand...

Yep, that's a very common thing on ST11s. Good catch.
 
But I don't think cutting the overflow hose can cure an overheating condition all by itself. It will only cure a coolant loss condition since the crack in the hose allows coolant to flow out when it shouldn't, and also prevents the coolant from being drawn back into the radiator from the overflow tank once the bike cools down.

OP should check the fan operation to make sure its actually coming on when it should, that is the normal mechanism for preventing overheating while stopped. So question to the OP: Was your temp gauge going beyond about 3/4, or were you just losing coolant, but the temp gauge wasn't going too high?? Or, did your leaky hose cause so much coolant to leak out that your engine would eventually overheat due to low coolant level??
 
To install the oil cooler you’d have to replace some parts, not least of which would be a 92-95 water pump ($$$), assuming you could even find one. Fagettaboudit...! :rolleyes:

John
 
Hi folks, have now ditched the idea of fitting oil cooler as too much hassle and bike running fine and temp needle doesn't go over half way even in heavy traffic. The fan cut in at around 98% when overheating but is fine now. The problem was that the small split in the overflow pipe was losing coolant from the system which caused the trouble.
Since cutting off the split end and cleaning up the spigot on the radiator, reconnecting the pipe and refilling with coolant has sorted it. I understand from various websites that this is a pretty common problem on the Pan.
Regards
Eric
 
The hose split is fairly common. Keep your eye on the gauge. If it starts showing high temps again, replace it. Don't know about the Standard ST but the ABS will need about 6' plus (2 meters may cover it) of hose.
 
Thanks for all that replied guys. I will get a spare hose and keep it stashed on the bike just in case. It is 18 years old now, but I should have at least another 5 years left before I hang up my helmet and get a camper van......
Regards
Eric
 
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