Engine Backfire Diagnosis Led to Wiped cam Lobes

[Skweegle89]

85swb "Fancy"

Dizzy is stabbed. You mentioned needing to limit the vac advance. How do I go about doing that?


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[Skweegle89]

85swb "Fancy"

I'm baffled. I have power to the distributor, but none to the plug wires. Brand new dizzy.


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[350runner]

12v?

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[350runner]

Connected to the batt terminal not tach? Double check

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[Skweegle89]

85swb "Fancy"

I figured that Bart out. Best case scenario, the timing chain has jumped.


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[DoubleDingo]

Also make sure the contact on the rotor is making contact to the center stub on the coil. I have had those lose contact before and leave me with no spark. And leave the vacuum advance unhooked and plugged on the carb side until you get it timed.

 

[Skweegle89]

85swb "Fancy"

Had to clean the plugs again to get it to start. Runs like complete crap. Backfires every 3rd or 4th revolution. Only hitting on a few cylinders. Off to buy yet another set of spark plugs so we can run a compression test.


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[350runner]

Pull the valve covers and see if the rockers are all moving the same or are loose.

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[Skweegle89]

85swb "Fancy"

I will have to wait until I can get get some more valve cover gaskets. These are already leaking and I don't think they will make the trip.


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[350runner]

Good deal

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[Skweegle89]

85swb "Fancy"

I'm running out of possible scenarios.


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[350runner]

Bud I really think it's like I told you I'm that pm. A complain test will tell you as well as the rocker movement.

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[Skweegle89]

85swb "Fancy"

I will check that and a couple more things this week. I did acquire a 454 out of one of our old city fire trucks. It's an 86 the city bought brand new back in 86. 50k miles and I got it for the low low price of free. It's got a knock though, so it will need rebuilt.


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[350runner]

See I knew you had a 454 LOL! ;-)

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[Skweegle89]

85swb "Fancy"

Lol as long as it's not a conflict of interest with the city, being as how on on city council were good to go. I would rather get the 350 running so I have time to build the 454 like I want it. Idk, I'm just getting really fed up.


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