Mack 2 valve tip turbine

[Joeyk3d]

Sandy Colabella told me he went to Emerson paving wen English closed up. I gotta call him saw him last year.

[Joeyk3d]

Omg!!

[Joeyk3d]

Gerbal jammer!!??!! I can't stop laughing

[Superdog]

  On 9/8/2013 at 8:33 PM, Green Dash said:

What's the difference between an ENDTB675 and an ETZB675?

I can decipher the old number (EN=engine, D=diesel, T=turbocharger, B=engine brake) but why the change?

I don't know what the Z is all about.

[Superdog]

  On 9/8/2013 at 8:50 PM, hossein said:

Hi

Is ETZB675 a 315hp?

ETAZ673A was the 315 hp engine,known as 300+. The B in any of them just meant it was Dynatard equipped.

[Superdog]

  On 9/8/2013 at 9:15 PM, Joeyk3d said:

John Mauro was down my garage he say the 5 indicates maxi... The 676 was a " shift Motor" as he called it.. Meaning it had a Trans w gears behind it????? I'm so confused!!!

675 and 676 were both Maxidynes,built to be used with 5 or 6 speeds.

[Superdog]

  On 9/8/2013 at 11:19 PM, Joeyk3d said:

wen we got truck it had no Trans haha. We put a six speed mud stick in there. Was there 2 types of side mount air charge coolers??

yes,the later ones were water cooled.

[Joeyk3d]

  On 9/8/2013 at 11:33 PM, Superdog said:

ETAZ673A was the 315 hp engine,known as 300+. The B in any of them just meant it was Dynatard equipped.

a was after cooled ?? Now that had a front mounted charge cooler??i actually have jake not dynatard.still means same thing ???

[Joeyk3d]

  On 9/8/2013 at 11:36 PM, Superdog said:

yes,the later ones were water cooled.

im so lost?? Did that make any hp difference??

[RFCDrum]

  On 9/8/2013 at 11:25 PM, Joeyk3d said:

Sandy Colabella told me he went to Emerson paving wen English closed up. I gotta call him saw him last year.

Well Joey Gulino was Emerson Paving. Joey's dad works for him no and the three brothers sold a portion of the business to Mike Joey's cousins. Now I could tell you some stories also! LOL. Bobby was with DVS for a long time too. I didn't know he was with English. If he was with Mike it was just to fill in I assure you. I have a Jake on my 676 also. Truck is in the weeds needs a cam.

[Joeyk3d]

  On 9/8/2013 at 11:35 PM, Superdog said:

675 and 676 were both Maxidynes,built to be used with 5 or 6 speeds.

which motors you would put gears behind??haha I'm so mixed up

[Joeyk3d]

  On 9/8/2013 at 11:47 PM, RFCDrum said:

Well Joey Gulino was Emerson Paving. Joey's dad works for him no and the three brothers sold a portion of the business to Mike Joey's cousins. Now I could tell you some stories also! LOL. Bobby was with DVS for a long time too. I didn't know he was with English. If he was with Mike it was just to fill in I assure you. I have a Jake on my 676 also. Truck is in the weeds needs a cam.

i know dean and remember wen he worked there I couldn't wat went on there.. Wat were the signs of bad cam??

[Superdog]

  On 9/8/2013 at 11:47 PM, Joeyk3d said:

which motors you would put gears behind??haha I'm so mixed up

the 300+ was made for use with a 10 speed,and with the operating range,would not work well at all with a 5 or 6 speed.,but you could put any trans. you wanted behind a 675 or 676,I've seen 10 and 13 speed fullers,10 and 12 speed Macks,, them.about anything you can imagine behind .

[Joeyk3d]

  On 9/8/2013 at 11:57 PM, Superdog said:

the 300+ was made for use with a 10 speed,and with the operating range,would not work well at all with a 5 or 6 speed.,but you could put any trans. you wanted behind a 675 or 676,I've seen 10 and 13 speed fullers,10 and 12 speed Macks,, them.about anything you can imagine behind .

now somebody told me if I put a13 in there it would fall right on its face?? Watever that means.. Let me humbly say I'm outa my league when it comes to matching things up..!! I still want to put a different Trans xcept all these different model #s my head starts spinning ?

[RFCDrum]

  On 9/8/2013 at 11:52 PM, Joeyk3d said:

i know dean and remember wen he worked there I couldn't wat went on there.. Wat were the signs of bad cam??

Well it started popping through the air cleaner and then my mechanic adjusted the valves and did one more time and said that was it as we were at our limit. It's ticking away too. He didn't want to tighten them anymore. He's a good guy and very sharp so. I had a spare motor but when we went over it it was pretty beat. I think I'd rather work with what I have. Some decisions to make in the future and maybe some help from the BMT gurus.

[RFCDrum]

  On 9/9/2013 at 12:22 AM, Joeyk3d said:

now somebody told me if I put a13 in there it would fall right on its face?? Watever that means.. Let me humbly say I'm outa my league when it comes to matching things up..!! I still want to put a different Trans xcept all these different model #s my head starts spinning ?

If you are going to change the trans put a 12 speed in her. Robinson from Paterson had a later DM with a 12 speed in her. That would be cool.

[Joeyk3d]

  On 9/9/2013 at 12:27 AM, RFCDrum said:

Well it started popping through the air cleaner and then my mechanic adjusted the valves and did one more time and said that was it as we were at our limit. It's ticking away too. He didn't want to tighten them anymore. He's a good guy and very sharp so. I had a spare motor but when we went over it it was pretty beat. I think I'd rather work with what I have. Some decisions to make in the future and maybe some help from the BMT gurus.

wow scary!! Sometimes I think hear mine do that on the decel.

[RFCDrum]

Well he would adjust it and it would be good for a little while and then start to do it again and he would yell at me don't use the Jake! I had no work for the truck with the economy the past couple of years so it sits in my yard in the weeds. I have to get it running and blow the mice out of her.

[Joeyk3d]

  On 9/9/2013 at 12:29 AM, RFCDrum said:

If you are going to change the trans put a 12 speed in her. Robinson from Paterson had a later DM with a 12 speed in her. That would be cool.

i was thinkn 12.. Wish I did it first time!! There are different model #s which am I lookin 4??ill search around 4 one..

[Maddog13407]

have seen many 237 and and 250's with worn valves bad from overexcessive jake brake use actually. I dunno what the different numbers meant in later years. have seen Mack drop the N and just put ET675 also. im with Mike, someone put a side mounted cooler off a 285 or 300+ on a 237 block.

[b61mack]

  On 9/9/2013 at 12:32 AM, Joeyk3d said:

wow scary!! Sometimes I think hear mine do that on the decel.

Sounds like you might have a loose valve seat.

[Maddog13407]

have also taken a 237 apart and seen all the valves worn in the guides and really sloopy from usin the Jake. engine also had a scorched liner and piston and was still runnin strong but when you let off on it it sounded like it was skipping and the Jake was stuck on

[RFCDrum]

I know when I open up my motor it is going to be a Chinese menu of things to be done. That's probably and money of course from holding me back right now.

[RFCDrum]

  On 9/9/2013 at 1:00 AM, Maddog13407 said:

have also taken a 237 apart and seen all the valves worn in the guides and really sloopy from usin the Jake. engine also had a scorched liner and piston and was still runnin strong but when you let off on it it sounded like it was skipping and the Jake was stuck on

I'm sure I have other issues too Maddog. As far as excessive Jake use I don't know what the mason supply did when they had it. I don't think I was too bad with it but I did use it.

[Joeyk3d]

  On 9/9/2013 at 12:58 AM, b61mack said:

Sounds like you might have a loose valve seat.

it comes and goes once in a while I hear it out the exhaust you probably right cause my #1 cyl. Exhaust manifold sometimes looks wet w oil. Wat ya think??