Author Topic: Chevy 454 Distributor Remove/Replace  (Read 8089 times)

Offline DaveVA78Chieftain

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Chevy 454 Distributor Remove/Replace
« on: May 24, 2014, 09:42 PM »

Offline ClydesdaleKevin

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Re: Chevy 454 Distributor Remove/Replace
« Reply #1 on: May 24, 2014, 10:05 PM »
Great and clear instructions, Dave!  Thanks!

Kev
Kev and Patti, the furry kids, our 98 Cherokee lifted beastie tow vehicle, and our 1995 Itasca Suncruiser Diesel Pusher.

Offline DaveVA78Chieftain

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Re: Chevy 454 Distributor Remove/Replace
« Reply #2 on: May 24, 2014, 10:22 PM »
Copy paste from the Service manual.

Offline BrandonMc

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Re: Chevy 454 Distributor Remove/Replace
« Reply #3 on: June 05, 2018, 01:27 PM »
This may be obvious but I still need to ask,


To install a distributor do you use the TDC of #5 cylinder using the bottom timing mark on the harmonic balancer rather than using #1 for TDC plug per the instructions?

The instructions say to use the alternate position #5 when timing the engine. But for simply installing the distributor I am not clear if you would still need to use #1 to find TDC? because simply, I am not able to see the upper side mark, and I'm also assuming the bottom mark isn't going to be good to line up 0 for the #1 cylinder.

Likewise, if my assumption is correct to use TDC at #5, the rotor would then need to be placed between the number 5 and 7 position when installed.

Offline tmsnyder

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Re: Chevy 454 Distributor Remove/Replace
« Reply #4 on: June 05, 2018, 02:00 PM »
If you use the #5 pointer, that means #5 is going to be at TDC.   The distributor rotor will be pointing at the #5 spark plug wire on the cap.  So it's the same instructions as if you were using #1, just use #5 instead.


That assumes you are on the compression stroke and not 180 degrees off under the distributor cap.  I use a long regular screwdriver to turn the oil pump a little so as the distributor rotates as it drops down in, it engages the oil pump and turns it that last little bit.   Otherwise you end up with the distributor not seating down in fully into the block, it sits on top of the oil pump.  Just don't drop the screwdriver down into the block LOL  Use a bit enough one that it won't fit down in there!



Offline BrandonMc

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Re: Chevy 454 Distributor Remove/Replace
« Reply #5 on: June 08, 2018, 09:02 PM »
Thanks for the replies! I thought Dave had replied earlier too.


Well, I had to ask because I was troubleshooting a brand new distributor, and turns out - out of the box brand new DST1845 wasn't sending the spark at the posts. Ended up ordering another distributor, and sent the old one back. This new one worked like a charm.


Also, I found this video helpful for a diagnosis after testing the coil among other things per the flowcharrt in the service manual: https://www.youtube.com/watch?v=763z6IGyExI

Offline TerryH

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Re: Chevy 454 Distributor Remove/Replace
« Reply #6 on: June 08, 2018, 10:52 PM »
Are you quite sure that the video you linked to is the one you wished to post?

https://www.youtube.com/watch?v=763z6IGyExI
If you danced with the devil for a very good reason, have you not still danced with the devil?
Tom Clancy  1947 - 2013

Offline Rickf1985

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Re: Chevy 454 Distributor Remove/Replace
« Reply #7 on: June 09, 2018, 08:03 AM »
Running a distributor with no loads on the terminal is NOT a good idea!

 

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