Smoking at part thorttle

[Soot Sandwich]

Okay, more driving, car feels great, decent get-up and zero smoke even at max throttle.  I have noticed that my tach does not jump around if i approach 3k slowly and smoothly.  Also, under 3/4 throttle the car gets up to 3k nicely but then hits a brick wall almost. Like it runs out fuel or something.  Should I adjust the pump screw for max throttle?

[vanbcguy]

The "Brick Wall" is the governor... There's a load of postings on here about the "governor mod" or "gov mod", they'll explain the deal.  There's a spring in your pump who's job it is to start cutting fueling around 3K and then pretty much totally shut it off by 4400 RPM or so.  It's definitely an "advanced" thing to try, with lots of potential for problems!

[Rabbit on Roids]

pfft, its not a hard project at all. last gov mod took me less than a half hour..

[jseeley]

if Giles already rebuilt the pump shouldn't that mod already be done?   

[Rabbit on Roids]

might be done already, but if he is hitting a wall, i would bet it still has its governor intact and not shimmed.

[Soot Sandwich]

Well, Giles did give me a performance rebuild.  Paid a great deal for it so I would hope that's been taken care of.  I am going to do more "testing" to see whats what.  I want to be sure it is not pilot error before I go back to him.

[Soot Sandwich]

Okay, so, a couple things I have noticed. The car revs fine fast 3k.  I just get an alarming amount of vibration through the pedal at 3k.  Could it be my throttle is hitting the floor too soon and I'm not getting the full potential from the pump?

I have noticed that my temp gauge goes up well past middle just below the 2nd to last small dot then the rad fan kicks on and then the temp goes back down to middle.  Is there something wrong?  Is my water pump going?  Shouldn't my fan be kicking on earlier?

Also, at idle, my cars vbelts seem to not be spinning true...could I have bent some when i removed them while doing my timing belt?  Where is the best place to get replacements?

Thanks,

Steve

[vanbcguy]

Jezebel vibrates like mad past 3K... After I shimmed my gov spring and did the first few higher RPM pulls it scared the crap out of me.  Now that I've been running like that for a few months I'm pretty much used to it - seems a 1.6L IDI shakes like hell once it spins up to those speeds.

Temp gauge behavior sounds normal from what I've heard.  The fan doesn't kick in until the engine is fairly warm.  Nothing wrong with that - these engines like heat!

V-belts... bent pullies definitely do bad things.  I made a mistake putting the outer WP pulley on mine (I thought the spacer was supposed to go on the outside) and ended up warping it pretty good.  Threw a belt on a highway trip after that.  So yeah, they're not hard to warp, and messed up pullies will do bad things!

[burn_your_money]

Okay, so, a couple things I have noticed. The car revs fine fast 3k.  I just get an alarming amount of vibration through the pedal at 3k.  Could it be my throttle is hitting the floor too soon and I'm not getting the full potential from the pump?

Yes it's possible. You need to make sure that you are getting full throttle movement on the pump, it's very important.

If you paid for a performance pump you have a modified governor.

[Soot Sandwich]

How do I make sure I am getting full throttle?  When I put the pedal down, the throttle goes to the end of its travel (the threaded rod).

[burn_your_money]

Then you are getting full travel. If the throttle lever on the pump hit's it's stop then all is good.

[Soot Sandwich]

Hmm, okay. Good info on here.  I will double check my throttle to make sure it goes full travel.

Anyone know where I can get new pullies?  Can I use gasser pullies?

[Rabbit on Roids]

you gotta use diesel pullies, otherwise none of them will line up right. gasser pullies are made to work with the narrower crank sprocket.

[burn_your_money]

The brickwall could be a fuel restriction. I would try and hook a vacuum gauge up to the feed and see what it says at 3k with your foot to the floor.

[Soot Sandwich]

Hook a vacuum gauge up to the fuel feed? Would I tee the line? Hmm... What kind of draw should I be seeing at 3k?  Or am I just looking for a dip at 3k?

Sometimes I think maybe I'm just not sure what's normal as I am not familiar with the diesels.  After getting some feedback on the forums I feel pretty good about the car.  Lack of power aside (it really could use 150hp) although I still have fun with it.