ihpower

i have been thinking of advancing my timing. for a while now. i know a lot of people have done it, but i was jsut wondering what are the good and bad things about doing this. and how hard is it to do. thanks

Boatnik

I just did mine for the first time last week. It took two hours the first time and ten minutes the second time. If yours is the same as the 1992 with the VE pump, do yourself a big favor and buy a "S" wrench in 13mm to loosen and tighten the mounting bolts. There are quite a few threads on the subject in this forum.

wannadiesel

Since you have POD's, you really NEED to advance the timing to burn all the extra fuel.

You will get lower EGT and better mileage.

ihpower

i have done a search about advancing the timing and i found out stuff about it but never how do do it. can any one tell me how?

wannadiesel

Loosen the 3 nuts that hold the pump to the timing case. Loosen the bolt that holds the pump to the rear support bracket. Remove the banjo bolt from the AFC housing. Rotate the pump towards the cylinder head.

You will need the "s" wrench for the bottom nut. The nut closest to the engine can be gotten with a long 1/4" extension from in front of the fuel filter. 92DODGE found that a ratchet strap is helpful for moving and holding the pump. Like Boatnik said, the second time it will take 10 minutes.

'80Toad

Did I read somewhere that advancing 1/8" is a good place to start?
Don't forget to mark it before you move it if its not marked!!

Corey

wannadiesel

Yep. If you don't have the tools to measure plunger lift, 1/8" will get you close enough.

If it starts sounding like a GM 6.2 it's time to back off a touch.

frostie

I advanced my timing about 1/8 a year ago. I just put a new head gasket on the other day and advanced it another 1/8, it seems to come on stronger and I cant seem to get the EGTs as high. I also seem to be burning less fuel. I will have to check milage again soon. My low fuel light comes on around 290 to 300 miles but Im at 320 now and it still isnt on. My truck weighs 10,500 and I run wide open all the time, if I get over 14 that would be cool.
Another trick for advancing timing. when your bolts are loose. You can take a big pair of channellock pliers and put one jaw on the intake bolt and the other on the pump diaphram housing and that rotates the pump nicely.
Good luck

ihpower

thanks a lot i might go out and do it now thank you

ihpower

i have done it and i like it. NOw i cant get it above 1150* before i could get 1300*. but i did drop 6ish pounds of boost. but all in all its great

G1625S

Heat makes boost. By advancing the timing, you keep more of the heat in the cylinder doing work on the power stroke, rather than cooking your pyro probe on the exhaust stroke The timing bump is a great move for a daily driven truck. Just be careful when towing heavy---heavy loads+high cylinder pressure could=mad head gasket (yipe! yipe!)

g

ihpower

i pull loads just at slow speeds. so i will be alright.

Boatnik

Congradulations

Was it fun? About half way through the first time I had to ask, "Self, what have I gotten myself in to?" The end results do justify the means in this case. I haven,t had a chance to test mine under load yet, but I think I might drag the boat this weekend. It defifnitly makes daily driving more fun. Let me know when you are going to get a 3200 rpm spring. That change was a real hair puller (If I had hair).

ihpower

i want to get a 3200 spring but i am a scared to tear into the top of the pump and screw it up. I seem to be good at that.

mhuppertz

I'm gonna get smacked for this, but I advanced mine until it poped when cold, than backed it off a bit. My truck still misses when I rev it in neutral when it's cold, but zero poping. What I don't know is how my altitude plays into it...