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Old 06-23-2010, 05:05 PM   #1
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Checking/flushing brake fluid on Adventurer

I recently bought a 2000 Adventurer 35B on a Ford F53 chassis with 39,000 miles. I do not know the maintenance history of the MH so I am undertaking changing all fluids.

I am in the process of flushing/refilling the brake fluid and am in a quandary as the master cylinder has two fill caps and unfortunately I do not have a chassis manual. Should I flush as two separate systems and if so, how are they divided(front/rear - or left/right)? When I finish and "check" the brake fluid level, should I check the level under each of the two caps? (I cannot "look" into either of the caps as they are very high up under the hood.)

These questions sound simple, but I am at a loss. Any guidance would be greatly appreciated.
2000 Winnebago 35 Ft Adventurer
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Old 06-23-2010, 05:09 PM   #2
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They are front/back. Yes, they are independent (so if one line ruptures, you still have front or back brakes). Yes, each reservoir should be filled to the proper level. Best of luck.

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Old 06-24-2010, 01:33 PM   #3
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Hi bubbaricky,

You don't say if your chassis has a "tag" axle but if so there is likely a master cylinder for the tag axle brakes too. On my 1995 F53 chassis it is located under the coach between the main rear axle and the tag axle.
1995 Coachmen Santara 360MB 36' w/slide.
Ford F53/460 chassis, 1997 Jeep Grand Cherokee "toad"
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Old 06-24-2010, 09:13 PM   #4
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Hi Ho: You really can see the level if you use a little mirror. Otherwise you will probably spill brake fluid all over the place.

Just open the valve at each wheel as somebody presses the brake pedal and drain fluid until it is clear.

Good luck, Dirk
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Old 06-24-2010, 09:23 PM   #5
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You should suck as much old fluid out of both master cylinder reservoirs as possible, will save time.
2003 Winnebago Adventurer 38G F53/ V10 605 watts of Solar
1999 Winnebago Brave 35C Handicap Equipped
1999 Jeep Cherokee & 1991 Jeep Wrangler Renegade
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Old 06-24-2010, 09:43 PM   #6
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I just did my fluid and on my Adventurer I have the same set up. They are seperate but will fill from one cap if you fill until the wall between them is over come. I used a Motive power bleeder which came with ine fill cap and one rubber gasketed cap to prevent air from escaping out of the other cap. It is truly a one man job with the Motive bleeder. It took me about 45 minutes to an hour to do all four wheels. The advice above is correct that you should suck out as much as you can from each side of the res. I used an old turkey baster. Take an old towel, a piece of plastic to put on the ground, a bleeder clear hose that fits tightly on the bleed valve, a clear bottle and a box end wrench to fit the valve. Some of the bleeders will be easy to get to and some not so much but the hose must stay clamped on the valve to keep the fluid from getting on everything. If you have saftey glasses wear 'em 'cause this crap really burns if it gets into your peepers.
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Old 06-25-2010, 06:50 PM   #7
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I ordered and received a Motive bleeder as Inspectorudy mentioned. I thought I was smart ordering the Ford three tab lid version as my lids have three tabs (It was Motive's #0107). Well it came but it wasn't close to my size lids. Perhaps Inspectorudy would be kind enough to tell me the size/model I should have ordered. The idea sounded good and it had gotten good reviews on the forums.

By the way - the mirror is a good idea to check the fluid level in the master cylinder. I did not use one and really had a mess with overfilling the unit :-(

I thank everybody for all the helpful input! It is very much appreciated.
2000 Winnebago 35 Ft Adventurer
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Old 06-25-2010, 09:36 PM   #8
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I did the same thing you did and ordered the wrong cap. They sent the new one to me in two days for free. They have a site on their web page that shows each cap with a micrometer that fits the outer diameter of each cap so you can tell what size you need. I just kept the other cap for someone else to use. I am sorry for your troubles but you will not be disappointed with the bleeder.
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