Wtb vacuum advance

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Familyguy78
Advanced Member
Posts: 57
Joined: Sun Sep 16, 2018 5:24 pm
My tercel:: 1985 Toyota Tercel 4wd Sr5, Fed emission but no cat converter. Manual transmission, with air conditioning.
Location: Medford, Oregon

Wtb vacuum advance

Post by Familyguy78 »

Hey everyone, I'm back looking for another 3 port vacuum advance, it's for a 1985 tercel hatchback. This one holds vacuum in just one port, unfortunately. I made a post a few years back, where I wasn't getting vacuum to the advance, it turned out to be a bad gas port on the intake manifold.
Phatcat
Advanced Member
Posts: 75
Joined: Tue Apr 18, 2023 12:09 pm
My tercel:: 1984 Toyota Tercel 4WD
Location: Issaquah, WA

Re: Wtb vacuum advance

Post by Phatcat »

I was able to use a unit off Amazon or eBay for a 1983 Tercel. The vacuum ports are backward, but it functions perfectly on my 84 3-AC.
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dlb
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Posts: 7442
Joined: Mon Jul 06, 2009 9:03 pm
My tercel:: '87 sr5, '83 dlx parts car
Location: bc, canada

Re: Wtb vacuum advance

Post by dlb »

Same here re: Phatcat's response. I got one off of ebay. It was expensive but I'm glad to finally have a fully functioning one now.

It's important to note that if the distributor o-ring is leaking, it will cause the diaphragms in the vacuum advance unit to degrade over time. I think that's the main cause of them wearing out since the oil leaking from there runs down the dizzy and seeps into the advance unit.
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