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Kirkham Motorsports

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  • 1 Post By patrickt

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Old 04-30-2022, 01:50 PM
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Default Horn Relay part number

Suspension and brakes passed my tech inspection
All fluids flushed except rear differential at this time
No drips or leaks
Brake light issue solved (funky LED's previously in all four corners, not enough draw to trigger the brake lights, back to HiPo 1157's for now)

Tightened all loose bolts (expect for those rattling around in my head), just down to the horn, where I believe the relay has gone bad. From what I can see, the car currently has a Bosch 0332209138 relay installed.

Is this the correct part number for the horn relay?

Is this also the same part number for the other relay on the firewall to the right of the main harness grommet?

Thanks in advance,


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Old 04-30-2022, 01:56 PM
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Never mind, found the updated schematics and part numbers


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Old 04-30-2022, 05:29 PM
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Default Two ERA Relay Trivia Points

1) The horn relay and the fan relay are both the same part. So, if you find you're out in the middle of nowhere and your fan relay burns out, you can still get home by just swapping in the horn relay.

2) When ERA mounts those relays to the firewall, they do it high up which makes it almost impossible to pull the relay straight up and out. So, in order to remove the relay you sometimes need to rotate both the relay and the relay base itself 90 degrees on the firewall and then pull the relay out sideways.

That's your ERA relay trivia for today.
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Old 05-02-2022, 06:09 AM
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That is definitely tight. Sorry. It will take a while for the change to take place, but I've modified my CAD drawing to move them down 1/4". That should help some. Eventually...
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Old 05-02-2022, 07:13 AM
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Quote:
Originally Posted by strictlypersonl View Post
That is definitely tight. Sorry. It will take a while for the change to take place, but I've modified my CAD drawing to move them down 1/4". That should help some. Eventually...
I have absolutely no issue with the relay mount on the FIA firewall. Can even get a phillips head screw driver straight in for mounting in the existing hole. Perhaps Patrick was talking about a 427 .


Now, about the missing screws (I have one on each side at the moment) on my convertible top "hook" on the side of the windscreen.


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Old 05-02-2022, 07:26 AM
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Originally Posted by mrmustang View Post
Now, about the missing screws (I have one on each side at the moment) on my convertible top "hook" on the side of the windscreen.
Those might be Whitworth threaded fasteners.
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Old 05-02-2022, 07:45 AM
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Originally Posted by patrickt View Post
Those might be Whitworth threaded fasteners.
I believe from past experience, they are. Now, where to find them in the right size and length is the question.

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Old 05-02-2022, 07:50 AM
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Originally Posted by mrmustang View Post
I believe from past experience, they are. Now, where to find them in the right size and length is the question.

Bill S.
Take out one that you still have and use one of those little Whitworth thread tools that you can buy off of Amazon to correctly identify what it is. Then you can order everything from Cheeseheads to Philisters here:
https://britishfasteners.com/screws.html
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Old 05-02-2022, 08:21 AM
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Originally Posted by patrickt View Post
Take out one that you still have and use one of those little Whitworth thread tools that you can buy off of Amazon to correctly identify what it is. Then you can order everything from Cheeseheads to Philisters here:
https://britishfasteners.com/screws.html
I reached out to Bob to see if he has any left in the box on his shelf

1 pair of them, and my new "proper Bosch" relays due in on Thursday and the FIA will be effectively have passed my rigorous "tech". Then I can work on the 289 roadsters center bracket, dash to windshield rattle, and be done with that car as well.


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