Flames and back fire 4.9
Just did an engine swap and put it all back together. But it runs rough and the exhaust gets super hot and turns cherry red and flames come out the egr port in between the cats and has no power.
The engine was just rebuild with a bigger cam and punched 30 over. The cam is a comp cam with 260/260 and a .447/.447
I took the distributor out twice put it on TDC and stabbed it I called my buddy and he said I may have put it in 180 out. Is there a way to make sure it's not a 180 out? Any help would be helpful
The engine was just rebuild with a bigger cam and punched 30 over. The cam is a comp cam with 260/260 and a .447/.447
I took the distributor out twice put it on TDC and stabbed it I called my buddy and he said I may have put it in 180 out. Is there a way to make sure it's not a 180 out? Any help would be helpful
It's a Canadian thing eh!
Joined: Nov 2010
Posts: 6,539
Likes: 196
From: Ontario, living across a hay field
The exhaust valves are still open when its firing. Be sure you are on the compression stroke and not the exhaust stroke on #1. The cam probably may have too much lift and duration for the stock timing so it would need to be pushed back, but in an electronic controlled engine it may not work.
Last edited by sylver91; Nov 11, 2013 at 11:55 PM.





