'81 rev counter question
Thread Starter
Safety Car
Joined: May 2001
Posts: 3,758
Likes: 3
From: Surrey
'81 rev counter question
Hi,
Another UK L81 owner has disconnected his ECU & wants to know how to get his rev counter to work again! I know a lot of you '81 owners have junked the computer, so how did you do it?
Thanks
Paul
Another UK L81 owner has disconnected his ECU & wants to know how to get his rev counter to work again! I know a lot of you '81 owners have junked the computer, so how did you do it?
Thanks
Paul
Burning Brakes
Joined: Jan 2001
Posts: 1,208
Likes: 438
From: Loir Valley Sarthe, France
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2024 C3 of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
Re: '81 rev counter question (UKPaul)
Hi Paul.
Been talking to Wolf? I gather he has no rev counter since he abandoned the computer. He says the car runs great though!
Regards
Been talking to Wolf? I gather he has no rev counter since he abandoned the computer. He says the car runs great though!
Regards
Thread Starter
Safety Car
Joined: May 2001
Posts: 3,758
Likes: 3
From: Surrey
Re: '81 rev counter question (Stephen Irons)
Hi Stephen,
Yup, it's Wolf! He said it was running well, but it's doing about 12mpg!!! Ouch. Do you see him fairly often? If he's interested in selling his old Q-jet I'd be interested in "taking it off his hands" :)
:cheers:
Yup, it's Wolf! He said it was running well, but it's doing about 12mpg!!! Ouch. Do you see him fairly often? If he's interested in selling his old Q-jet I'd be interested in "taking it off his hands" :)
:cheers:
Burning Brakes
Joined: Jan 2001
Posts: 1,208
Likes: 438
From: Loir Valley Sarthe, France
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2024 C3 of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
Re: '81 rev counter question (UKPaul)
Paul
As per my email, I'm hoping to see him to get a radio. I'll ask him about the carb, if you haven't?
Regards
As per my email, I'm hoping to see him to get a radio. I'll ask him about the carb, if you haven't?
Regards
Safety Car
Joined: Mar 2000
Posts: 4,077
Likes: 27
From: Northeast South Dakota
Re: '81 rev counter question (UKPaul)
Hey Paul, you couldn't turn him around before dumping the E4ME huh? I do hope you can get his old carb from him. I'll have you know that i did get together with my buddy who had the carb. We went out to his junk yard where he says he put it and couldn't find it anywhere. We looked for a good portion of the afternoon. :mad He seemed to think that it was on a car still, but I told him it probably wasn't because I had it in my hand just a year or more ago. I am going to go to another local shop here and see if the owner has any of these laying around.
BTW, I don't know anything about the tach. Mine quit working last summer, so I imagine before spring I'll at least know how to put a new board in it, or is it the filter that I need?????? I don't know for sure.
-Justin
BTW, I don't know anything about the tach. Mine quit working last summer, so I imagine before spring I'll at least know how to put a new board in it, or is it the filter that I need?????? I don't know for sure.
-Justin
Thread Starter
Safety Car
Joined: May 2001
Posts: 3,758
Likes: 3
From: Surrey
Re: '81 rev counter question (Dalannex)
Hi Justin,
If there's any chance of grabbing his carb I will do (I'll let you know if I do), but thanks for spending an afternoon looking through a mates junk! If I can get another carb it will mean I won't have to change that solenoid needle, fix the large thread on the fuel inlet & fit bushes on the primary throttle shaft. Bolting another carb on seems a lot easier!
I've never had to look at how the tach works but I've got a circuit diagram for the tach filter & its test specs if it's any good to you? I can email it if you need it.
Stephen: If you're reading this, what he needs to do is have a look at the connectors to the ECU. One has the terminals numbered & the other is lettered. Join a wire to the terminal marked "P" (the TCC I/P to the ECU) & run it to a good earth (the battery post?) via a switch. Go for a test drive, get up to about 60mph in 3rd & hit the switch. This should get current flowing through the TCC relay (via the TCC brake switch) which should then throw & allow current to pass through the TCC solenoid, giving lockup. If it all works OK & he's happy, ask what he wants for his old, worthless, junk carb :lol: It may be prudent to fit a line fuse in the wire, just in case.
:cheers:
If there's any chance of grabbing his carb I will do (I'll let you know if I do), but thanks for spending an afternoon looking through a mates junk! If I can get another carb it will mean I won't have to change that solenoid needle, fix the large thread on the fuel inlet & fit bushes on the primary throttle shaft. Bolting another carb on seems a lot easier!
I've never had to look at how the tach works but I've got a circuit diagram for the tach filter & its test specs if it's any good to you? I can email it if you need it.
Stephen: If you're reading this, what he needs to do is have a look at the connectors to the ECU. One has the terminals numbered & the other is lettered. Join a wire to the terminal marked "P" (the TCC I/P to the ECU) & run it to a good earth (the battery post?) via a switch. Go for a test drive, get up to about 60mph in 3rd & hit the switch. This should get current flowing through the TCC relay (via the TCC brake switch) which should then throw & allow current to pass through the TCC solenoid, giving lockup. If it all works OK & he's happy, ask what he wants for his old, worthless, junk carb :lol: It may be prudent to fit a line fuse in the wire, just in case.
:cheers:
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