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Post  rsv1cox Fri Jul 21, 2023 7:21 am

Wow, how did I miss this thread!

Went back and read every response from Andras's initial post forward.  Interesting evolution as great minds combined to identify and hopefully resolve the issue.  1200 grit and a smooth glass surface solves many problems.  Levents gap, Mauricio's Spanish, Math, Intrigue - reads like a Raymond Chandler novel.  Smile

Bernie + Matt ='s our gratitude. (My math)
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Post  Levent Suberk Fri Jul 21, 2023 8:37 am

Very Happy Small Cox Logo Babe Bee .049

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Post  gkamysz Fri Jul 21, 2023 10:15 am

MauricioB wrote:thanks Jacob, look, I have sometimes solved this problem by enriching the fuel with castor oil, ie running the engine with high castor oil for a while, as it works, in some cases it has been sealed with the oil itself.

This is interesting as I was reading some glow plug patents the other day and it stated this exactly. They were lubricating center electrode parts with castor prior to pressing with some hope this helps seal the joint.
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Post  rdw777 Fri Jul 21, 2023 3:14 pm

I’ve enjoyed this thread too…. It was good to learn that the wires for the coils are solid reactive metal instead of only plated…. I was always curious about that..Thanks for that bit of info …
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Post  GallopingGhostler Fri Jul 21, 2023 5:11 pm

rsv1cox wrote:Wow, how did I miss this thread! Went back and read every response from Andras's initial post forward.  Interesting evolution as great minds combined to identify and hopefully resolve the issue.  1200 grit and a smooth glass surface solves many problems.  Levents gap, Mauricio's Spanish, Math, Intrigue - reads like a Raymond Chandler novel.  Smile Bernie + Matt ='s our gratitude. (My math)

Niagra .... slowly I turned, step by step, inch by inch ....

video humor:

lol! This Site Rocks!
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Post  rsv1cox Fri Jul 21, 2023 6:07 pm

Abbott and Costello evolved into Martin and Lewis, laughed with them both. The propeller cap in the A&C video is well received here. Smile
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Post  GallopingGhostler Fri Jul 21, 2023 8:23 pm

rsv1cox wrote:Abbott and Costello evolved into Martin and Lewis, laughed with them both.  The propeller cap in the A&C video is well received here.  Smile
This one here involves aircraft factory work and engineers. I could see him testifying about these engine glow heads. Surprised

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Post  Basswood Fri Jul 21, 2023 10:18 pm


I’m not blaming Matt or Bernie. Here is another one, part fail. Lol It just goes to show that every once in awhile there is some miner issues wth manufacturing. Lol so I order some parts from Matt, almost a monthly thing for me. So I get this engine together and I look at it again and I realize something is wrong. So I take it back apart and I’m trying to figure out how did I screw this up? I kept turning the tank and its a no go. Lol Take a close look at the photo and see if you can spot the problem.
I got a hold of Matt and he replaced it right away.
Thanks Matt for your great service
Bob





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Post  MauricioB Fri Jul 21, 2023 10:29 pm

Basswood wrote:
I’m not blaming Matt or Bernie. Here is another one, part fail. Lol  It just goes to show that every once in awhile there is some miner issues wth manufacturing. Lol so I order some parts from Matt, almost a monthly thing for me. So I get this engine together and I look at it again and I realize something is wrong. So I take it back apart and I’m trying to figure out how did I screw this up? I kept turning the tank and its a no go. Lol Take a close look at the photo and see if you can spot the problem.
I got a hold of Matt and he replaced it right away.
Thanks Matt for your great service
Bob

Bingo!
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Post  Basswood Fri Jul 21, 2023 10:49 pm

You got it MauricioB. I emailed Matt and I asked is this a new limited capacity fuel tank. Laughing
Bob
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Post  rsv1cox Sat Jul 22, 2023 4:45 pm

MECOA makes their own glow heads but only in .049.  They admit that prices have "skyrocketed" due to the cost of the elements material.  I have bought many of them and have always been happy with their performance. I don't know if their machining could be modified to produce .010 and .020 heads but it would be nice if they would.  Probably not cost effective in those sizes.  On ebay MECOA's .049 heads go for $16.99 each, I remember when they cost half that amount.
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Post  Cox International Thu Jul 27, 2023 11:35 am

Mauricio,

Sorry for the belated reply but I just got back from camping.

Yes, that is Theresa's handwriting.

What you have experienced is a loss of compression via the "core seals", because the head was not properly pressed together. It is something that we have come across on occasion but unfortunately can't test this prior to shipping, as one basically has to test this on an engine.

In spite of the purchase being over four years ago, please remind us of this issue when you place your next order and we will send you a replacement glow head.




MauricioB wrote:
Cox International wrote:Not sure where those heads are from, as we don't package them that way (not is it our handwriting). We also would not write "gaskets" in Spanish.

Although we did have some leaky 049 heads some years ago (they were not properly pressed), we did not come across any 010 versions like this so far. Which doesn't mean that it can't happen. Again, we warrant what we sell.


MauricioB wrote:good. Here are the glow plugs I received. On the left is the one that loses compression through the (cathode or anode), it makes a micro bubble or balloon when it is in operation.
It doesn't hold the engine running at low rpm, probably due to pressure loss.
It is dated the day of the test in the plastic envelope: 08/04/2019, (April 4, 2019).
The other glow plug on the right came with this one, but I haven't used it yet, (I put a Cox Vintage glow plug on my engine).
I don't remember the exact supplier, but it is possible that they come from Mr. Bernie, since he buys some accessories through my importer, Mr. Ojeda.

Indicated with an oval and green arrow .010 that's original vendor handwriting, someone on the vendor's team might be able to recognize it.
010 head stops glowing - Page 3 20230718

Mr. Bernie only the letter marked in green is that of the supplier. everything else is my own handwriting, do you understand? In my comment I try to indicate that.
I can maybe trace the supplier, I have to contact the importer and see if he has the order, but I don't claim anything, I just share a personal experience.


Last edited by Cox International on Thu Jul 27, 2023 11:37 am; edited 1 time in total (Reason for editing : Typo)
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Post  MauricioB Thu Jul 27, 2023 10:34 pm

Hello Mr. Bernie!!...
I understand that some part can fail. I do not claim anything, I repeat, I only share this experience.
Exactly when I detected the problem, I discarded the glow plug and I didn't inform him of anything, it is that I keep in mind that this can happen, we are very far away (cost distance) and I let it go.
I appreciate your attention and your support, if at any time I make an order, I remind you.
A hug from Argentina, thank you.
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Post  MauricioB Thu Jul 27, 2023 10:36 pm

Basswood wrote:You got it MauricioB. I emailed Matt and I asked is this a new limited capacity fuel tank. Laughing
Bob
Very Happy Small Cox Logo Very Happy Small Cox Logo Very Happy
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Post  Cox International Fri Jul 28, 2023 1:35 pm

Thanks Mauricio and just remind us on your next order.





MauricioB wrote:Hello Mr. Bernie!!...
I understand that some part can fail. I do not claim anything, I repeat, I only share this experience.
Exactly when I detected the problem, I discarded the glow plug and I didn't inform him of anything, it is that I keep in mind that this can happen, we are very far away (cost distance) and I let it go.
I appreciate your attention and your support, if at any time I make an order, I remind you.
A hug from Argentina, thank you.
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