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serpentine belt conversion.. 

 

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 Post subject: serpentine belt conversion..
Posted: Tue Dec 26, 2006 3:05 pm 
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hi guys
well i have got the au engine in my ea and at the moment im still using the ea belt set up..
this set up worked fine but now

now i know i have to use the el water pump , power steer pump,harmonic balancer and alternator.
has anyone tried to use the ea/eb aircon pump when doing the belt conversion???

and is there any differences in the alternator plug from ea to el??

Last edited by TROY. on Thu Oct 11, 2007 4:18 pm, edited 1 time in total.

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Posted: Tue Dec 26, 2006 8:30 pm 
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Hey,

First of all the knock sensor sits under the bbm on the back of the engine (i think your referring to the crank sensor which is on the front of the engine above the balancer.) I dont think you need to connect the crank sensor as its only there on the au motor coz there is no dizzy (coilpacks instead) and no cam angle sensor.

Most ford alternators from ea-ba use the same plug however the motocraft ones can be a bit different.

If I were you i would replace water pump, power steer, harmonic balancer, alternator and the aircon pump to an ef/el one.

If you dont use the serpentine belt on the aircon then there is really no benefit in doing the conversion.

Also you could change the pully on the front of the ea compressor however it needs to be done with a press and it needs to be regassed afterwards anyway. And it would cost more than buying a second hand ef/el compressor.

Hope this helps :)

P.S You'd need to get an EF/EL radiator too coz the lower radiator hose is smaller on the ef/el/au water pump

 

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Posted: Tue Dec 26, 2006 8:46 pm 
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hi


also i have the bosch alternator...

anyway i want to keep the ea aircon pump because its just been regased.
i know it uses the same type and width of belt as the serpintine one but the ea aircon pump sits lower than the el one..im just not sure if i can get a belt to fit....

really all i want to do is put the knock sensor on and conect it up..
if the knock sensor has nothing to do with the toothed ring on the balancer i dont realy need to do the belt conversion...

Last edited by TROY. on Thu Oct 11, 2007 4:29 pm, edited 1 time in total.

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Posted: Tue Dec 26, 2006 8:51 pm 
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Hey dude.

Sorry I dont have a pic. But its attached the top of the block on the inlet side at the back. Looks kinda like an oil pressure switch.

EFs have a cam angle sensor connected where the dizzy normally is and also the crank angle sensor on the front above the balancer. They are 2 different types of sensors.

The AU's only use the sensors above the balancer and dont even have a cam angle sensor where the dizzy normally is (there is still the hole for a dizzy tho :))


But yeh anyway you dont need to do a serpentine belt convo for the knock sensor. Just connect up the 2 wires that go from it to the ecu.

 

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Posted: Tue Dec 26, 2006 8:52 pm 
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oh yeh and the bosch alternator uses the ford plug so that will all be ok. But you dont need to do the serpentine conversion now anyyway.

 

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Posted: Tue Dec 26, 2006 9:02 pm 
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cool
thanks mate..

do you know how the knock sensor works ???
i thought it would have some kind of a input from the dizzy or crank sensor ...sorry if it sounds dumb!!

i think i have seen the sensor you are talking about its where the coil is bolted on ea/ed??
but on my engine there is a threaded stud in there and my coil is bolted there......
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Posted: Tue Dec 26, 2006 9:22 pm 
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the knock sensor is designed to independantly detect any knocks and so forth using some kind of vibration sensor. It then adjusts the timing etc based upon the info it detects. I'm not sure 100% how it works but i have read about them on google before.

Yeh the sensor sits a bit above where the coil is normally bolted. On the AU motors there isnt the same hole for the coil to bolt into (i had to mount my coil to an unused engine mount hole).

Hopefully the ppl who installed your engine didnt take out the knock sensor and use that area for the coil. Coz that would be a pain.

 

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Posted: Tue Dec 26, 2006 9:27 pm 
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umm
well i put the coil there because it seemed conveniant at the time and it had no sensor on the block when i got it...

so its going to be a pain in the a** to get to...

thanks for your help...
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Posted: Tue Dec 26, 2006 9:30 pm 
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if you run the car up on wheel stands or jack up the front - you can get to the sensor area pretty easily from under the car. You could just move the coil to attach it to one of the spare engine mount holes and get a knock sensor from a wrecker or buy a new one.

 

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Posted: Tue Dec 26, 2006 9:48 pm 
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ok thanks

then i have to work out how to connect it..?????
i know which pin one wire goes to on the ecu but im not sure where the other one goes???
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Posted: Wed Dec 27, 2006 9:39 am 
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Location: Bardon, Brisbane
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i dont have a copy of the ecu wiring diagram. but i used the pin out diagram which is in the tech documents section on this site. its a bit of a pain in the a** running new wires from ecu to the engine bay. You need a few meters of wire. I bought a big roll of 30m of figure8 cabling and its been soo useful with my engine conversion.

Good luck with it mate, Let us know how you go.

 

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Posted: Wed Dec 27, 2006 11:04 am 
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Ride: ford falcon au3 xr8

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hi

i just came back from the wreckers and the el has a sensor that screws into the block and the au has a stud that the knock sensor bolts onto..

i tried to put the el one on the au block but the au has a smaller hole
so hopefully the au one will work on the el ecu??..

now all i have to do is move my coil and run wires into the car grrr..
and the bit im not sure is what wire goes where???

because this thread has gone off topic i made another thread with my knock sensor question..

http://www.fordmods.com/forums/viewtopi ... 844#555844
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