Date: Mon, 22 May 2023 11:14:42 -0400
Reply-To: Eric Caron <ericcaron96@COMCAST.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Eric Caron <ericcaron96@COMCAST.NET>
Subject: Re: Spring gremlin no 1: master cylinder?
In-Reply-To: <B6723D17-4BC4-45A4-8774-8646E9791BEE@icloud.com>
Content-Type: text/plain; charset=utf-8
Replying to be sure all see your post.
Keep us informed on your findings.
eRic
> On May 22, 2023, at 12:27 AM, Jeff Palmer <w.jeff.palmer@ICLOUD.COM> wrote:
>
> Thanks Dennis. I’ve had the van since 1993 and it’s up to 375k km. Most parts on the van replaced at least once including brake parts except for the master cylinder and brake lines. Will also look at the proportioning valve too. Thanks!
> Jeff
>
> Sent from my iPhone
>
>> On May 21, 2023, at 7:03 PM, Dennis Haynes <d23haynes57@hotmail.com> wrote:
>>
>> When it comes to brake pats if you can’t recall when it was last inspected, tested, or serviced, it is time. While the master cylinder in the Vanagon tends to last a long time due to its location, it should not be considered a lifetime part.
>>
>> That said, the cylinder is basic is design but there are some check valves needed for it to actually pump fluid. They can corrode, stick whatever rendering at least on the brake circuits inoperable. Corrosion can also ruin the cylinder bore adding to failure of the piston seals. This is a reason brake fluid should be periodically changed. Small leaks can also cause the system to become air bound. These cylinders are available, relatively inexpensive for what they do so if any doubt, replace it. At this point the rear brake proportioning valve should also be tested. For neglected systems the front calipers can bind and freeze and the rear cylinders can be frequent leakers. For vans that sit a lot an annual inspection of the brakes is a good idea.
>>
>> Dennis
>>
>>
>>
>> -----Original Message-----
>> From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of Jeff Palmer
>> Sent: Sunday, May 21, 2023 5:42 PM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: Spring gremlin no 1: master cylinder?
>>
>> Hi everyone. Got the 85 out for Season 30 (with me). When I parked it last fall everything was fine. This spring I couldn’t get any pressure with the brakes. Pumping brought a bit but it disappeared fast. Topped up slightly low brake fluid but no change. No sign of leaks. Have never replaced the master cylinder. Is it time??
>>
>> Thanks
>> Jeff
>>
>> Sent from my iPhone
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