DBGraves

Need a full set of E7 427 Etech injectors. Core or used. 

I’m in Virginia 

Ok. I didn’t know if it had it or not. I was just trying to help him out. Thanks for your time and the information fjh  

Is there anything he can do to keep his manifold from cracking again. He watches the pyro constantly. 

I’ve heard of changing one side of the turbo to make it spool faster. 

Posting for a friend of mine 

He has a Etech 400 with stage 2 injectors and the S475 turbo. Thing is A beast. It gets a little hot on long pulls. So now his exhaust manifold has cracked. I’ve seen on here somewhere where a guy put a older style E7 manifold on because the ports where bigger. 

Can anyone help and point me in the direction of that post. 

Can we see some pictures I’m looking for the same.  a solid project truck

Thanks 

I haul Gravel, Dirt mostly sometimes asphalt 

Update on the truck. 

I took it to my Mack shop it turned out to be the guy that rebuilt the motor put a junkyard jakebrake housing on the high side. So it had not had the update spring kit installed. So the high side was hung open slightly and that’s why the motor was doing what is was doing. Now it’s all fixed it runs like a top and pull’s like no other. 

Just wanted to update everyone for the knowledge 

also thanks for you guys and your advice and knowledge it’s what makes this place so helpful. 

Wow blackdog2 that’s a payload. I Va we have the bridge law. So my tri grosses at 59325=17.25+. The quint grosses at 72450=22.70+ -

so so update got a banjo. I’ll let everyone know how it turns out in a couple days. 

Thanks for the info Vladislav. 

Vladislav,

thanks for the info. If I’m getting it right. I can just buy a 44k housing or (banjo) it will work. 

My housing had been fixed before and it was a hack job and the axle doc doesn’t want to try it due to safety reasons. 

Are they made out of different steel? Black dog2

its a quint axle dumptruck it hauls 23 tons so I’m putting 44k suspension to the limit as is.  I was just wondering if they where the same housing so I could get it back on the road ASAP. 

Are they made out of different steel? Black dog2

its a quint axle dumptruck it hauls 23 tons so I’m putting 44k suspension to the limit as is.  I was just wondering if they where the same housing so I could get it back on the road ASAP. 

Hello everyone,

i have a question my 99 rd688s has walking beam suspension with Mack rears. My rear rear driver side spendle snapped off Friday. It’s been fixed before so the axle doc says I need a new housing. My question is it the same 44 k housing that the camel back uses or different. Both looks the same where the suspension bolts to the housing. 

Thanks in advance 

Thank you sir couldn’t have done it with out you. 

Where is this fitting located?

Put the resistor in seems to help still has a rough idle but no white smoke no stumble I think it worked. The real test will be tomorrow when I’m loaded. 

Thanks for you guys help. Really thanks!

Lol 

Yeah shipping might be expensive. Thanks for your time 

That would be cool and easy. I put the new sensor in. No changes problem still there resistor should have came in today so I’ll put one in this evening 

I live in Virginia and haul local. Are you in Canada?

I got one on the way. Should be here in the morning. I really hope it does the trick. 

Nope shows no codes at all. When the motor was rebuilt it showed 1 code for timing sensor so I replaced both of them. Since then no codes. Or light rather. 

Thanks for yalls help

If installing the resistor is a little drastic I can order the sensor first they aren’t that expensive. 

The problem was instant. The motor wasn’t rebuilt at Mack. And it took forever to get it back. It was rebuilt by the guy I bought the truck from his mechanic BIG mistake on my part. But mechanically the motor is fine. My Mack place says everything looks good. They seem to think it was a short causing the problem. Everything has been checked over and looks good. So leaves it to the CPU. I want to try everything I can at the house before I take it to Mack.

But in the bulletin it states not to have the resistor in the wire if they put the program in the CPU

ill see if I can find it again and post it on here. 

Thanks for yalls help. 

I’m not sure fjh I had the motor rebuilt recently and in the bulletin that Mack put out that some one had posted on here awhile back. It talked about if major components was changed that it might do this. The problem only arrived after the motor was rebuilt. 

I can make it do it all day from 800 to 1100 rpms but long as i stay above that range it runs like a top. Every stop sign and stop light does it  and being it’s a quint axle dump truck with 23 tons it kills it  

the resistors should be in tomorrow . Witch wire do I put it in or does it matter?

thanks for you Guys help  

10 4 sir I will give it a try and see what happens it might take a day or so to get one. 

Again thanks for your help. 

Pulled valve covers everything looks like it should. Back jakebrake housing was replaced when the engine was rebuilt. All the push rods seem to be straight. What little bit I know and i mean little. I’m leaning towards a ECU problem. Reason I say this is it did not have this problem until after the engine was built. Any other thoughts you guys?

Looking for one for my RD688s. Would you be able to ship it? What’s the price?