Go Back  Offshoreonly.com > Technical > General Q & A
Cannot get blown 454 to start. >

Cannot get blown 454 to start.

Notices

Cannot get blown 454 to start.

Thread Tools
 
Old 11-06-2022 | 01:56 PM
  #1  
TomZ's Avatar
Thread Starter
Platinum Member
25 Year Member
Platinum Member
 
Joined: Feb 2001
Posts: 4,295
Likes: 1,457
From: Virginia Beach
Default Cannot get blown 454 to start.

Guys,

Working on the Cigarette today and cannot get the port engine to start. A month ago or so we found the TB IV distributor sensor was bad and I replaced it with a spare. Today while trying, we noticed the batteries weren’t really holding a charge so we replaced. Now the engine spins over nice and fast.

Giving it two to three strong pumps and letting it sit for about 10 seconds we try to fire. A couple of times it has spit through the carbs. It ran once and then spit again. A couple more times it did the same spitting and now will do nothing. I did notice the coil was whining for a few seconds after trying.

Removing the coil wire will give one big spark out of the tower but nothing else.

This is a TB-IV with V6 module and old MSD 6M (before they were junk). Might try swapping the MSD boxes.

Out of ideas. I want him to replace the whole thing with Delco but his wife will kill him.

Thoughts?
TomZ is offline  
Reply
Old 11-06-2022 | 02:54 PM
  #2  
GPM
Registered
20 Year Member
 
Joined: Mar 2004
Posts: 2,696
Likes: 93
From: Pa
Default

Will it run without the MSD
GPM is offline  
Reply
Old 11-06-2022 | 03:06 PM
  #3  
TomZ's Avatar
Thread Starter
Platinum Member
25 Year Member
Platinum Member
 
Joined: Feb 2001
Posts: 4,295
Likes: 1,457
From: Virginia Beach
Default

Haven’t tested that yet. The harness isn’t wired to run it without.

Might have been really retarded… checking that now.
TomZ is offline  
Reply
Old 11-06-2022 | 04:31 PM
  #4  
Registered
5 Year Member
 
Joined: Sep 2018
Posts: 383
Likes: 78
From: Upstate NY
Default

I had a similar issue and it was timing for me… I hooked up a timing light and checked cranking timing just with the starter turning the engine over. While my set up was EFI doing this helped me narrow down the issue and get it fired.
Big_Baller is offline  
Reply
Old 11-06-2022 | 04:42 PM
  #5  
TomZ's Avatar
Thread Starter
Platinum Member
25 Year Member
Platinum Member
 
Joined: Feb 2001
Posts: 4,295
Likes: 1,457
From: Virginia Beach
Default

Very retarded.

We made some assumptions on the port engine since it had come off the dunk and went right into the boat. It was probably stripped down to make it easier and the distributor was just stabbed back in it. Eyeballed timing mark at 16 degrees base and lined up the cap. Boom.

Sorry for the false alarm. Was a long day.
TomZ is offline  
Reply
Old 11-06-2022 | 05:03 PM
  #6  
SB
Registered
20 Year Member
 
Joined: Nov 2004
Posts: 14,100
Likes: 3,687
From: On A Dirt Floor
Default

The ol’
ASS
U
ME
strikes again.
SB is offline  
Reply
Old 11-06-2022 | 05:13 PM
  #7  
TomZ's Avatar
Thread Starter
Platinum Member
25 Year Member
Platinum Member
 
Joined: Feb 2001
Posts: 4,295
Likes: 1,457
From: Virginia Beach
Default

Originally Posted by SB;[url=tel:4850745
4850745[/url]]The ol’
ASS
U
ME
strikes again.
Yep!!
TomZ is offline  
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.