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Author Topic: No vac dizzy  (Read 2313 times)

Offline Chevygold

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Re: No vac dizzy
« Reply #30 on: April 22, 2024, 05:18:32 AM »
Fired up the truck on the old home made Chinese plug leads and all was good so then I decided I'd fit the Accel leads that came with the MSD and now my tacho is dancing all over where with the old leads it was steady, seems to steady up once the revs get up a bit but at idle it's crazy!

Graham
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Offline Mike81K10

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Re: No vac dizzy
« Reply #31 on: April 22, 2024, 02:28:51 PM »
Replace the old leads one at a time with the Accel leads. When it starts acting up - you will know which is bad. Could just be a bad crimp!
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"Tell me and I forget. Teach me and I remember. Involve me and I learn." -Benjamin Franklin

Offline JohnnyPopper

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Re: No vac dizzy
« Reply #32 on: April 22, 2024, 06:57:09 PM »
Sounds like your tacho is dizzy  8)
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1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline bd

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Re: No vac dizzy
« Reply #33 on: April 22, 2024, 07:23:01 PM »
Dem little green leaves in dem dizzy tachos aint cilantro, my friend!!   WooHoo!!!    ;D
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Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline Chevygold

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Re: No vac dizzy
« Reply #34 on: April 25, 2024, 03:50:48 PM »
It's got me that dizzy I've gone back to getting the interior back together, could do with some of that herbal mixture to cure my headache!
Graham
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Offline Chevygold

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Re: No vac dizzy
« Reply #35 on: April 25, 2024, 04:01:47 PM »
Think I'll put my diagnostic rig on and see what the traces look like on the screen for each cylinder.
Graham
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Online VileZambonie

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Re: No vac dizzy
« Reply #36 on: Today at 05:59:04 AM »
Double check the firing order. Make sure you didn't cross 5&7
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