thought as much. thanks
| UK Buell Enthusiasts Group https://www.ukbeg.com/forum/ |
|
| brake fluid https://www.ukbeg.com/forum/viewtopic.php?f=8&t=982 |
Page 1 of 2 |
| Author: | a10ken [ 11 Jun 2009 09:05 ] |
| Post subject: | brake fluid |
i am going to replace the fluids on my m2 and xl1200s, both specify DOT 5. can i use DOT 5.1 or am i right to be a bit suspitious?? |
|
| Author: | Maz [ 11 Jun 2009 10:17 ] |
| Post subject: | Re: brake fluid |
NO, dot 5 and 5.1 are incompatable. |
|
| Author: | a10ken [ 11 Jun 2009 10:27 ] |
| Post subject: | Re: brake fluid |
thought as much. thanks
|
|
| Author: | Norm [ 11 Jun 2009 10:29 ] |
| Post subject: | Re: brake fluid |
DOT5.1 is a glycol-based (mineral) brake fluid and, confusingly, is an update for the DOT4 fluids. DOT5 is a silicone-based fluid and the two are completely (as in throw-away and replace if you used the wrong one) incompatible. DOT5 is (arguably) the better fluid anyway, because the silicone-based stuff doesn't absorb water so it's properties remain more stable over time. Glycol-based fluids should be replaced every few years. Either way, the standards require the fluid to maintain a very low level of compressibility over the life of the product. 
|
|
| Author: | Maz [ 11 Jun 2009 10:35 ] |
| Post subject: | Re: brake fluid |
|
|
| Author: | pontiusxbazooka [ 11 Jun 2009 12:38 ] |
| Post subject: | Re: brake fluid |
i hear you shouldn't mix the two fluids, but can you replace one with the other if you bleed the system out? |
|
| Author: | Norm [ 11 Jun 2009 13:35 ] |
| Post subject: | Re: brake fluid |
Norm wrote: DOT5 is a silicone-based fluid and the two are completely (as in throw-away and replace if you used the wrong one) incompatible. The two are completely different and components are designed for one or the other. If you want to change, as a minimum, you'll need to change out all the hoses, seals, cylinders and possibly even the calipers. Why would you take even the slightest risk in pissing around with your brakes. |
|
| Author: | a10ken [ 11 Jun 2009 13:56 ] |
| Post subject: | Re: brake fluid |
Norm wrote: Norm wrote: DOT5 is a silicone-based fluid and the two are completely (as in throw-away and replace if you used the wrong one) incompatible. The two are completely different and components are designed for one or the other. If you want to change, as a minimum, you'll need to change out all the hoses, seals, cylinders and possibly even the calipers. Why would you take even the slightest risk in pissing around with your brakes. I wouldnt. thats why i asked first! |
|
| Author: | mojomick [ 11 Jun 2009 20:24 ] |
| Post subject: | Re: brake fluid |
Maz wrote: :sad1:  ...........One lousy sheep, eh Maz?
|
|
| Author: | pontiusxbazooka [ 11 Jun 2009 20:42 ] |
| Post subject: | Re: brake fluid |
a10ken wrote: Norm wrote: Norm wrote: DOT5 is a silicone-based fluid and the two are completely (as in throw-away and replace if you used the wrong one) incompatible. The two are completely different and components are designed for one or the other. If you want to change, as a minimum, you'll need to change out all the hoses, seals, cylinders and possibly even the calipers. Why would you take even the slightest risk in pissing around with your brakes. I wouldnt. thats why i asked first! yeah, what he said!... 
|
|
| Author: | Norm [ 11 Jun 2009 20:49 ] |
| Post subject: | Re: brake fluid |
Ah ha, I see we have another ungrateful wretch. pontiusxbazooka wrote: yeah, what he said!... But, unlike the other gentleman, you asked after I'd already said that you would need to replace everything. |
|
| Author: | pontiusxbazooka [ 11 Jun 2009 22:00 ] |
| Post subject: | Re: brake fluid |
you didn't say what to throw away or replace, i was just trying to clarify!..  
|
|
| Author: | Norm [ 11 Jun 2009 22:37 ] |
| Post subject: | Re: brake fluid |
The whole lot, chuck the bike in the skip (but send me your postcode first...  )In my head, throw away and replace meant everything that might come in contact with the fluid.  I can see that not everyone gets some of the stuff in my head, though. The bloody telepathy thing stopped working after I got that visit from the... hold on... tech forum... 
|
|
| Author: | pontiusxbazooka [ 11 Jun 2009 22:46 ] |
| Post subject: | Re: brake fluid |
hmmm, so really everytime you buy a secondhand buell that has use DOT 5 on the reservoir cap you should repace all the seals and rubber hoses, just to be on the safe side if you get my drift, you never know what fluid past owners have topped up with. calling a totally incompatible fluid 5.1 seems utter stupidity!....
|
|
| Author: | Norm [ 11 Jun 2009 23:12 ] |
| Post subject: | Re: brake fluid |
pontiusxbazooka wrote: calling a totally incompatible fluid 5.1 seems utter stupidity!.... Bet you can't guess which country's Department Of Transportation came up with that one then. Gowan, have a guess, gowan gowan gowan  Oh, and brake fluid should never need to be topped up. If it does need topping, you may have a more serious issue which I'd recommend sorting PDQ. Alternatively, you may be just wearing the pads down, in which case, don't top up or it'll FUBAR your paintwork as soon as you change the pads. |
|
| Page 1 of 2 | All times are UTC+01:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|