Ezibleed query

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Murrayminor
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Ezibleed query

Post by Murrayminor »

Hi
Has anyone used an Ezibleed on a minor 1000 master cylinder?
If so how do you overcome the master cylinder cap issue?
Proud owner of my first Morris Minor
philthehill
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Re: Ezibleed query

Post by philthehill »

Obtain a non vented cap from ESM.

http://www.morrisminorspares.com/brakes ... it-p829339

Drill a (8.75mm) hole and tap (1/8" x 28 BSP) the ESM cap to suit the Easy-Bleed cap union/adapter. Screw the adapter fitted with sealing washer into the ESM cap and the jobs done.

Murrayminor
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Re: Ezibleed query

Post by Murrayminor »

Thanks for the reply
Do you know if that cap is compatible with the Lockheed master cylinder?
The aftermarket MC fitted to my car has a smaller diameter cap thread than the Lockheed one.
Regards
Dermot.
Proud owner of my first Morris Minor
philthehill
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Re: Ezibleed query

Post by philthehill »

It should fit as the non vented cap is a direct replacement for the Lockheed vented cap when ESMs additional remote brake fluid reservoir which is mounted higher than the brake master cylinder is fitted. If the original vented cap is retained the vented cap would leak brake fluid.
Do you know what diameter and thread is fitted to your aftermarket master cylinder?
A link to the aftermarket master cylinder would be helpful.

Life always gets harder when straying away from original specification. :wink:

I will be able to tell you more when my non vented ESM master cylinder cap arrives and I have completed the mod as described above incorporating a genuine Gunson's Eezibleed kit (Pt No: 4062) mated with the non vented cap.

Phil

Murrayminor
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Re: Ezibleed query

Post by Murrayminor »

philthehill wrote: Tue Dec 11, 2018 5:44 pm It should fit as the non vented cap is a direct replacement for the Lockheed vented cap when ESMs additional remote brake fluid reservoir which is mounted higher than the brake master cylinder is fitted. If the original vented cap is retained the vented cap would leak brake fluid.
Do you know what diameter and thread is fitted to your aftermarket master cylinder?
A link to the aftermarket master cylinder would be helpful.

Life always gets harder when straying away from original specification. :wink:

I will be able to tell you more when my non vented ESM master cylinder cap arrives and I have completed the mod as described above incorporating a genuine Gunson's Eezibleed kit (Pt No: 4062) mated with the non vented cap.

Phil
Hi Phil
I have replaced the non standard MC for the Lockheed item.
The MC I removed has a much smaller screw than the Lockheed.
I will try find another lockheed unvented cap and measure that.
Cheers.
Dermot.
Proud owner of my first Morris Minor
philthehill
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Re: Ezibleed query

Post by philthehill »

All Lockheed master-cylinder caps are vented otherwise the brake fluid would not flow as it should.
Only special aftermarket master-cylinder caps as per ESM type are non vented.

Murrayminor
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Re: Ezibleed query

Post by Murrayminor »

Well that's me totally confused.
I have ordered the unvented cap from ESM and see if that will fit my lockheed MC.
If it does then I will drill and tap as per your guide.
Thanks for your input.
Regards
Dermot.
Proud owner of my first Morris Minor
philthehill
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Re: Ezibleed query

Post by philthehill »

The size of the Lockheed master cylinder cap is 1 1/8" x 20 TPI (Threads Per Inch) BSC (British Cycle Thread).
The ESM cap will fit otherwise I would not have ordered one and looked elsewhere for my requirements.
When the cap arrives I will be doing the modification described.

My first Minor is pictured below which I still have after near 50 years of ownership and I have known the car since new.

Phil

Murrayminor
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Re: Ezibleed query

Post by Murrayminor »

Phil
Thanks for your assistance.
I will drill and tap the cap which will hopefully sort out the air in my system.
Which hillclimb championship do you compete in?
I used to hillclimb a lifetime ago but work got in the way.
Regards
Dermot.
Proud owner of my first Morris Minor
philthehill
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Re: Ezibleed query

Post by philthehill »

I never competed in any championship just entered and competed for the joy of competing.
I am afraid retirement got in the way with me.

Declan_Burns
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Re: Ezibleed query

Post by Declan_Burns »

Phil,
It's not 1 1/8" x 20 TPI (Threads Per Inch) BSC (British Cycle Thread) as we thought. I had posted this in the "Thread sizes" thread at the top of the mechanical section quite a while ago. I ordered a 1 1/8" x 20 TPI (Threads Per Inch) BSC (British Cycle Thread) dye from Tracy tools about three weeks ago and was surprised that it did not fit. It was of course my own fault and I sent it back together with an original cap to check and they could not figure out what thread is. They say it is 19tpi and I must say Tracy tools are great to deal with. I bought a better thread gauge in the meantime and also measured 19tpi. I also found that a metric 1.25mm pitch fits best so we are back to square one and we don't really know what the thread is. I will add this info to the "Thread sizes" thread at the top of the mechanical section.
Maybe you can get to the bottom of it.

Regards
Declan


Regards
Declan
philthehill
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Re: Ezibleed query

Post by philthehill »

Declan
Many thanks for the update re the threads of the master cylinder filler cap.
I just took the size as listed at the top of the mechanical section as read.
I will look into it and report back.
Phil

Declan_Burns
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Re: Ezibleed query

Post by Declan_Burns »

Phil,
I stumbled across that by chance in that I use those ESM master filler caps on my new top entry remote reservoir kits for the MG TD. I tap them in the lathe to take the banjo bolt. As they are fairly soft aluminium and not great quality as regards the finish, I wanted to clean up the threads after the lathe work so I thought I would order a die. That's how I found out that they are not 1 1/8" x 20 TPI (Threads Per Inch) BSC (British Cycle Thread) as we thought.
The top entry kit works great on the MG as there is enough clearance for the stainless steel braided Teflon hose under the floorboards. It is a pity that this method would not be quite so easy on the Minor as the cap is almost level with the floor.

Regards
Declan
Attachments
Tapped_non_vented_filler_cap.jpg
Tapped_non_vented_filler_cap.jpg (83.21 KiB) Viewed 1952 times
Top_entry_reservoir_kit_4.JPG
Top_entry_reservoir_kit_4.JPG (117.08 KiB) Viewed 1952 times


Regards
Declan
philthehill
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Re: Ezibleed query

Post by philthehill »

Declan
The ESM master cylinder non vented cap arrived this morning and I have just put various thread gauges to the cap threads.
The best fitment is ISO metric 1.25 pitch at 28.4mm O.D.
The next best fit is 20 TPI Whitworth profile.
Phil

Declan_Burns
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Re: Ezibleed query

Post by Declan_Burns »

Phil,
I can ask John Edwards at Tracy Tools to try the 1 1/8" x 20 tpi Whitworth die if he still has the cap that I sent him.
Regards
Declan


Regards
Declan
philthehill
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Re: Ezibleed query

Post by philthehill »

Declan
According to my Zeus Precision Chart...………….1 1/8" Whitworth Threads (55 degree) have 7 TPI.
1/4" Whitworth has 20 TPI. The larger the diameter the number of TPI reduces.

https://www.tracytools.com/taps-and-die ... ct_id=1494

Phil

Declan_Burns
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Re: Ezibleed query

Post by Declan_Burns »

Phil,
Tracy do offer a 1 1/8" x 20 tpi Whitworth form die. I have sent John Edwards an email asking him to test fit it.
https://www.tracytools.com/taps-and-die ... ct_id=1164

Regards
Declan


Regards
Declan
philthehill
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Re: Ezibleed query

Post by philthehill »

Declan
Thank you for the link.
Having measured the TPI and thread angle with a BSW thread gauge I have to admit that it never occurred to me to look in the Whitform section of Tracy Tools web site.
For cleaning up the threads especially male aluminium threads the Carbon Die should be more than adequate.
Phil

Declan_Burns
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Re: Ezibleed query

Post by Declan_Burns »

Phil,
He has binned the filler cap so he can't check it.
Regards
Declan


Regards
Declan
Declan_Burns
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Re: Ezibleed query

Post by Declan_Burns »

While we are at it, can anybody tell me what is the distance from the top of the filler cap to the floor on the Minor as I would love to be able to do a top entry reservoir kit for the Minor considering the access problems to fit the kit which connects to the rear blanking plug. A photo might also help. My car is not accessible at the moment as it is in underground parking and I got a letter yesterday telling me the roller shutter door is out of operation :cry: .
Regards
Declan


Regards
Declan
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