Breaching the firewall, clean and safe solutions??, Mounting ECU inside cabin.... |
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Breaching the firewall, clean and safe solutions??, Mounting ECU inside cabin.... |
Mueller |
May 30 2005, 01:29 PM
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#1
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
I'd like to avoid using bulkhead connectors, for good quality parts they can get expenisive and it also throws more components into the equation of troubleshooting or possible failure.
The diameter of the wiring bundle is ~14mm, one gromment I found that would work would be dust and waterproof which is fine, but I'm a little worried about the 29mm hole I must punch thru the firewall. |
Dr Evil |
May 30 2005, 01:34 PM
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#2
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Send me your transmission! Group: Members Posts: 22,995 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
I wanted to use a Cannon plug for the whole wiring harness. You could disconnect all of the wires at one plug. They are not cheap though, but water, dust, oil proof. How many wires are we talking about?
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machina |
May 30 2005, 01:36 PM
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#3
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Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848 |
I just found a rubber grommet at the FLAPS but it is not fire or dust proof.
I started looking on mcmaster carr and found a couple but have since settled with what I got. Attached image(s) |
lapuwali |
May 30 2005, 01:57 PM
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#4
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
The best solution is to not mount it in the cabin at all. Do what Mark Henry did with his SDS install: mount it inside a gutted stock ECU box in the stock location. The SDS isn't rated for heat or waterproofness, either, and it seems to work for him. Plan B would be to mount it where the relay board went (since you dumped yours) but mount it inside another waterproof box. Ruggized plastic camera cases, for example, would work well. I'm also wondering about how well it would work where the 914/6 oil tank goes. Lots of space there, out of the heat, but you'd need to worry about muck and water.
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Aaron Cox |
May 30 2005, 02:05 PM
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#5
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
mil-spec connector.
like the 29 pin one..... waterproof. fireproof. DONE |
Dr Evil |
May 30 2005, 04:48 PM
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#6
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Send me your transmission! Group: Members Posts: 22,995 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
Thats what I am talking about, Aaron. But, Mike is right, $$$$.
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TimT |
May 30 2005, 04:52 PM
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#7
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
22 pin weatherpac connector=$60
thats what Im using |
Mueller |
May 30 2005, 11:27 PM
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#8
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
I kinda like the /6 tank location, I'm betting heat wise it does not get too much hotter than the inside cabin could obtain due to the greenhouse effect of the windows and an all black interior during the summer. I have a week or so to figure out the location, I'm sending the unit it back along with my Mallory CDI box for them to troubleshoot...they support MSD CDI boxes and have never done a Mallory CDI before, the Mallory "should" be a 100% replacment, but something it not right with the signals. One thing I have found that I don't like about the Link is that I cannot figure out how configure the base tables based on motor size, injector flow and motor VE, I think I screwed up and erased the base tables they setup on the ECU and I replaced them with the "sample" setup which makes no sense at all. It appears you give them the main info, they program the unit and it's up to me to fine tune it, i don't like that at all.......I'll know more in the morning when I call. There is a support forum, but so far this weekend I get the "read the manual" BS....trust me, I have, "something" is missing from it and I'm not a happy camper....many of the values can be from 0-255 (common ADC values), but there has to be a formula to get to the numbers needed |
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crash914 |
May 31 2005, 05:30 AM
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#9
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its a mystery to me Group: Members Posts: 1,826 Joined: 17-March 03 From: Marriottsville, MD Member No.: 434 Region Association: MidAtlantic Region |
Hey Mike...I just drilled holes in mine for the MS....I brought all wires through for the relay box and CPU inside some plastic wire wrap...used a 3/4 inch grommet to protect the metal. works ok.....that said, you can allways go for the rear trunk....
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crash914 |
May 31 2005, 05:31 AM
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#10
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its a mystery to me Group: Members Posts: 1,826 Joined: 17-March 03 From: Marriottsville, MD Member No.: 434 Region Association: MidAtlantic Region |
woo hoo.....just made 500th post....!!
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lapuwali |
May 31 2005, 08:30 AM
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#11
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
Rear trunk runs even hotter than the engine bay (exhaust heat). The front of the engine bay runs cool enough for an ECU, as long as you waterproof it. |
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Joe Bob |
May 31 2005, 08:51 AM
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#12
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Retired admin, banned a few times Group: Members Posts: 17,427 Joined: 24-December 02 From: Boulder CO Member No.: 5 Region Association: None |
I used a hole saw, split a piece of fuel line, lined the edges of the hole with the line and mounted the box in the rear trunk...prolly the "Duke boys" way...but it werks gud. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)
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jonwatts |
May 31 2005, 08:55 AM
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#13
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no rules, just wrong Group: Benefactors Posts: 2,321 Joined: 13-January 03 From: San Jose, CA Member No.: 141 |
I don't think we can regard any part of a 914 as "water-proof"
I was going to mount my ECU behind the passenger seat but I wasn't considering rear window leaks. |
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