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Something going wrong
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freddyhho Offline
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Post: #1
Something going wrong
Hi to all, after a week of work out of my home town, and when I arrive to my home, I take a big surprise, the 3/8 polycarbonate end plates from my dry cell was broken from where the gas is out of the dry cell (output hose hole) to all sides of the plate, the company who make the polycarbonate is Bayer and is medical grade rated for -30F to 130F, where I live is not to cold, besides I put my pickup in a garage ( I use it only when I'm not working), I'm already check all for possibles short cuts, and nothing is wrong, so if someone have an opinion of what could be happen, or something else, I been watching, thanks.

1995 Dodge Ram 2500
V8 5.9L 360
Tero Dry Cell 19 plates (3 cells 5 neutrals)
MAP and EFIE Enhancers
Water Vaporizer
Gasoline Vaporizer
02-09-2009 05:43 PM
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colchiro Offline
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Post: #2
RE: Something going wrong
I know acrylic end plates crack too. I'd like to see you use 1/2 inch end plates. Cheap Walmart cutting boards work good for that.

Rick

Links: Documents / Tuning for Mileage | Toyota Sensors | Autoshop Sensor Tutorials
02-09-2009 06:17 PM
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freddyhho Offline
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RE: Something going wrong
(02-09-2009 06:17 PM)colchiro Wrote:  I know acrylic end plates crack too. I'd like to see you use 1/2 inch end plates. Cheap Walmart cutting boards work good for that.

This cutting boards are transparent? I use acrylic polycarbonate plates because I like to see the coloration of the plates and if indeed is working.

1995 Dodge Ram 2500
V8 5.9L 360
Tero Dry Cell 19 plates (3 cells 5 neutrals)
MAP and EFIE Enhancers
Water Vaporizer
Gasoline Vaporizer
02-09-2009 07:08 PM
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colchiro Offline
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RE: Something going wrong
Sorry, these are probably white. So all the clear ones eventually crack?

Rick

Links: Documents / Tuning for Mileage | Toyota Sensors | Autoshop Sensor Tutorials
02-09-2009 07:34 PM
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thomasbala Offline
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Post: #5
RE: Something going wrong
(02-09-2009 07:08 PM)freddyhho Wrote:  [quote='colchiro' pid='27313' dateline='1234232268']
I know acrylic end plates crack too. I'd like to see you use 1/2 inch end plates. Cheap Walmart cutting boards work good for that.
Freddy:

Sorry to hear about the break. Rick is right; 3/8 is too thin. Plus, polycarbonate can be very brittle. Sounds like an expansion or contraction problem. What are you using to prevent freezing of your electrolyte? Did you tighten down the bolts properly; the same way you would tighten head bolts when you replace a head gasket? Did you tighten them too tight?
02-09-2009 07:42 PM
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colchiro Offline
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Post: #6
RE: Something going wrong
Anyone try doubling the thickness using 2-3/8" pieces (assuming you had extra material)?

I suspect that isn't much stronger, unless you glue it.

+1 on using the "star" pattern to gradually tighten it.

Rick

Links: Documents / Tuning for Mileage | Toyota Sensors | Autoshop Sensor Tutorials
02-09-2009 08:38 PM
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freddyhho Offline
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Post: #7
RE: Something going wrong
(02-09-2009 07:42 PM)thomasbala Wrote:  
(02-09-2009 07:08 PM)freddyhho Wrote:  [quote='colchiro' pid='27313' dateline='1234232268']
I know acrylic end plates crack too. I'd like to see you use 1/2 inch end plates. Cheap Walmart cutting boards work good for that.
Freddy:

Sorry to hear about the break. Rick is right; 3/8 is too thin. Plus, polycarbonate can be very brittle. Sounds like an expansion or contraction problem. What are you using to prevent freezing of your electrolyte? Did you tighten down the bolts properly; the same way you would tighten head bolts when you replace a head gasket? Did you tighten them too tight?

Hi thomasbala, I'm found a 1/2 inch nylamide material just about 20min. so, whit this end plates gonna end the problems (I guess), and for the frozen problem I don't think is a problem, just one day the temp. was below 0F and the pickup is inside of a garage always.
(02-09-2009 08:38 PM)colchiro Wrote:  Anyone try doubling the thickness using 2-3/8" pieces (assuming you had extra material)?

I suspect that isn't much stronger, unless you glue it.

+1 on using the "star" pattern to gradually tighten it.

I use an x pattern to tighten the bolts, and because the gaskets that I use, is not to much what I have to tight to seal all the dry cell properly.
(02-09-2009 07:34 PM)colchiro Wrote:  Sorry, these are probably white. So all the clear ones eventually crack?

For my experience, yes, eventually all the acrylic polycarbonate plates that I been use crack, even the 2 others ( one in the GMC of my mechanic friend and the other in the pickup of my dad) , so I'm gonna start to use nylamide plates and see what happens, this ones are expensive.

1995 Dodge Ram 2500
V8 5.9L 360
Tero Dry Cell 19 plates (3 cells 5 neutrals)
MAP and EFIE Enhancers
Water Vaporizer
Gasoline Vaporizer
(This post was last modified: 02-10-2009 02:05 PM by freddyhho.)
02-10-2009 01:50 PM
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freddyhho Offline
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Post: #8
RE: Something going wrong
Ok, I'm made all the recommendations suggested by colchiro and thomasbala, and going to take some precautions about the low temps.
Now, the Dry Cell take a little more space but working great, I'm add some pictures taken before and after assemble, please, watch them and tell me you're opinion.

BTW. The end plates are now 1/2 inch thick, the white one is nylamide(more stronger than polycarbonate), and the black one is pvc (I think), I found it for free this time (great don't you think?).


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1995 Dodge Ram 2500
V8 5.9L 360
Tero Dry Cell 19 plates (3 cells 5 neutrals)
MAP and EFIE Enhancers
Water Vaporizer
Gasoline Vaporizer
02-11-2009 11:28 AM
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colchiro Offline
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Post: #9
RE: Something going wrong
Freddy, I wonder if fender washers would distribute the load better for you?

Rick

Links: Documents / Tuning for Mileage | Toyota Sensors | Autoshop Sensor Tutorials
02-11-2009 03:00 PM
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freddyhho Offline
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Post: #10
RE: Something going wrong
(02-11-2009 03:00 PM)colchiro Wrote:  Freddy, I wonder if fender washers would distribute the load better for you?

I didn't find fender washers in my town, at lease not a big ones and SS material, I'm fabricating some washers whit a 1/8 acrylic plate I already have, and see if I can distribute the pressure.

1995 Dodge Ram 2500
V8 5.9L 360
Tero Dry Cell 19 plates (3 cells 5 neutrals)
MAP and EFIE Enhancers
Water Vaporizer
Gasoline Vaporizer
02-11-2009 04:05 PM
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