Harlowmavericks motor

[nemofish2000]

yes know about the box switch, but that only applies to Autos, and no not thinking of blanking the EGR but it may be stuck open which will cause problems, and just found out there is a throttle body vac operated, need to check that out, Rick

Well mines a manual!!

 

[Madmark]

Ah yeah that's why they say fit manual boost controller and guage to stop boost spikes

 

[Madmark]

Well mines a manual!!

Where is this switch?

 

[solarman216]

from what I have read on the subject, it can be done but other mods need doing as well to avoid over temperature on 4 and 5 pistons, a system I do not understand to lower the boost pressure and a Dawes valve???? etc, not having hands on on these motors till now I am on a steep learning curve, Rick

 

[solarman216]

Well mines a manual!!

very interesting, I knew about the loss of power in 4th and 5th on the auto but fine on other gears, but yours is manual so loss of power on all gears? Rick

 

[Madmark]

Dawes valve is just a bleed valve you put on actuator and set the boost manually taking control away from ecu as with egr delete can give it a big boost spike. Another mod that's a mist on 3 litre is catch can as inlets get oily and sooty and can block easily melting piston 4. Catch can stops this good right up on patrol forums

 

[solarman216]

Where is this switch?

as said where is this switch, Rick

 

[Barrbeast]

You can adjust the stop for the turbo actuator to stop the overboost, that's what I did, saves fitting dawes and needle valve BUT does change the engine characteristics slightly (I prefer it to be honest)

 

[Madmark]

http://www.chaz.yellowfoot.org/zd30_engine_problems.htm

Good read and near bottom how to help prevent

 

[nemofish2000]

very interesting, I knew about the loss of power in 4th and 5th on the auto but fine on other gears, but yours is manual so loss of power on all gears? Rick

No 1st and 2nd were fine but as soon as it went into 3rd would not rev above 2-2500 rpm. when it was live scanned it showed the n pos switch to be flickering. The switch had a very slight flat edge, hardly noticeable, its located on the top offside of the box more accessible from the inside centre consul.

 

[Madmark]

No 1st and 2nd were fine but as soon as it went into 3rd would not rev above 2-2500 rpm. when it was live scanned it showed the n pos switch to be flickering. The switch had a very slight flat edge, hardly noticeable, its located on the top offside of the box more accessible from the inside centre consul.

So just replacing with new is all that's needed

 

[nemofish2000]

Yeah, pulls like a train now, just wish i had got to that first instead of the long way round i took:doh:doh

 

[solarman216]

Mmmmmmmmmmmmm do not think this is Phils problem as it does it when in neutral stationary, Rick

 

[solarman216]

But just maybe, will look into it, Rick

 

[nemofish2000]

Best of luck rick.... Bloody frustrating when you cant quite put your finger on something, but im sure you will get there:thumb2

 

[Madmark]

Yeah, pulls like a train now, just wish i had got to that first instead of the long way round i took:doh:doh

Where did you get it from and how much as will look into this I think mine just feels that it should have a bit more I've got remap next month so wanna make sure its at full speed when it gets done

 

[Mav96]

Could it be the old Cps, just my 10p worth as mine ran terrible near the end when I did the mod :nenau

 

[nemofish2000]

Where did you get it from and how much as will look into this I think mine just feels that it should have a bit more I've got remap next month so wanna make sure its at full speed when it gets done

Mine was ordered through a local diesel specialist, switch was about £50, dont know if thats cheapor not as never had to buy/fit one before.

 

[AlexD333]

Are you doing welding work to the motor then rick? Looks involved! In good hands though :bow

 

[solarman216]

Are you doing welding work to the motor then rick? Looks involved! In good hands though :bow

yes front member that supports the rad is stuffed but got another in very good order from a scrapper, easy fit pics on Saturday , torching a 45 sq mtr flat roof at the mo finish off tomorrow then lead man to run 30 lin mtrs lead flashing, Rick