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Coughing engine , ef - FIXED INTAKE MANIFOLD LEAK 

 

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 Post subject: Coughing engine , ef - FIXED INTAKE MANIFOLD LEAK
Posted: Wed Mar 02, 2011 5:26 pm 
Getting Side Ways
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Age: 27

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Joined: 18th Feb 2010

Ride: Ford EF - Garret TO4Z

Location: Hobart
TAS, Australia

!!!( FIXED Was a intake manifold gasket leak, Runs perfect now Thanks guys)!!!!

hi well most of you know i have been rebuilding an ef engine since last december, its in the car and i have driven it,

im having a few coughing and spluttering problems for instance when i go to give it a rev it coughs for a second before reving up,,also for example i was crusing along at 80 and i would let the gas off to let it plain back down when its around 1200 it coughs when i go to go it back up into the revs , few people say it could be the timeing but the ef has a synconiser?????

any ideas would be great

fuel???? maby???

 

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Crank Assembly balanced, HV oil pump, ACL Trimetal bearings, "1 extra oil clearance taking to around 0.0650-0.0700 on mains and big ends, Moly rings,, Xr6 Cam, POD ( Possibly oversize injectors), Block, Head, Timing cover, belt idler, Alternator,painted in ford light blue

Last edited by Shifteh on Tue Mar 29, 2011 1:49 pm, edited 1 time in total.

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 Post subject: Re: Coughing engine , ef
Posted: Wed Mar 02, 2011 9:24 pm 
Oompa Loompa
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Joined: 2nd Mar 2011

Ride: 1997 Ford Fairmont EL

Location: Melbourne
VIC, Australia

Shifteh wrote:
hi well most of you know i have been rebuilding an ef engine since last december, its in the car and i have driven it,

im having a few coughing and spluttering problems for instance when i go to give it a rev it coughs for a second before reving up,,also for example i was crusing along at 80 and i would let the gas off to let it plain back down when its around 1200 it coughs when i go to go it back up into the revs , few people say it could be the timeing but the ef has a synconiser?????

any ideas would be great

fuel???? maby???


Fuel?..Miss firing?...Spark?...Dunno i would check the simple little things first.

 

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 Post subject: Re: Coughing engine , ef
Posted: Mon Mar 07, 2011 8:56 am 
Smokin em up
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Age: 27

Posts: 214

Joined: 19th Jul 2009

Ride: Ford EL Fairmont Ghia

Location: Melbourne
VIC, Australia

+1 to fuel, could be fuel lines a bit clogged (especially if dual fuel) or fuel pump might be on the way out. does it run rough on idle also? if so check leads n plugs. doesnt sound like anything too major mate
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 Post subject: Re: Coughing engine , ef
Posted: Tue Mar 08, 2011 3:01 pm 
Getting Side Ways
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Age: 27

Posts: 424

Joined: 18th Feb 2010

Ride: Ford EF - Garret TO4Z

Location: Hobart
TAS, Australia

it idles its just when i go to rev around 500rpm to 1700rpm that it chokes and f@rt and sometimes backfires through the pod,,

so today after checking quite a few things including hooking a ossilloscope up to the diagnostic port, ( nothing there)

one thing that was weird is when i disconnect the map sensor from the manifold it will rev properley from low ranges instead of just couging and s**t itself, but blows a heap of s**t out the exawst

when its running normally no exawst emissions


any ideas? im baffled, btw it doesnot have a stock intake, 30cm of pip[e then pod st8 off the bbm, could this be the cause?

 

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Crank Assembly balanced, HV oil pump, ACL Trimetal bearings, "1 extra oil clearance taking to around 0.0650-0.0700 on mains and big ends, Moly rings,, Xr6 Cam, POD ( Possibly oversize injectors), Block, Head, Timing cover, belt idler, Alternator,painted in ford light blue

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 Post subject: Re: Coughing engine , ef
Posted: Tue Mar 08, 2011 3:12 pm 
Getting Side Ways
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Age: 27

Posts: 736

Joined: 13th Oct 2009

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Ride: EL XR6

Location: Parramatta
NSW, Australia

My car is having the same thing happening at the moment too. Sputters momentarily, then takes off. Although i believe mine is also leaning out in the upper rpm. What work has the car had done to it?
Im putting mine down to requiring a tune on the j3.

Cheers
Sam

 

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 Post subject: Re: Coughing engine , ef
Posted: Tue Mar 08, 2011 3:56 pm 
Getting Side Ways
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Age: 27

Posts: 424

Joined: 18th Feb 2010

Ride: Ford EF - Garret TO4Z

Location: Hobart
TAS, Australia

ok ill start off what my engine has, ill start from the bottom , makes it easyer

High-volume Jp performance oil pump
balanced crank assemblly
bigend and main bearings, - Acl competition racing type with 1" extra oil clearance
20" oversize pistons ed pistons with the bigger dish for compression issues when it goes turbo
Moly Rings - acl ---18 or 19thou bottom, 21thou top
Shaved head
MLS au headgasket
Ed Port and polihsed head with crow xr6 equiv springs
Oversize injectors

Recondisioned gearbox- work done by me

so yeah lol what about your engine???

 

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Crank Assembly balanced, HV oil pump, ACL Trimetal bearings, "1 extra oil clearance taking to around 0.0650-0.0700 on mains and big ends, Moly rings,, Xr6 Cam, POD ( Possibly oversize injectors), Block, Head, Timing cover, belt idler, Alternator,painted in ford light blue

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 Post subject: Re: Coughing engine , ef
Posted: Tue Mar 08, 2011 4:01 pm 
Getting Side Ways
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Posts: 4599

Joined: 30th Aug 2010

Ride: BF XR6,

Location: NEWCASTLE
NSW, Australia

If its not turbo and you have bigger injectors take them off an put the stock ones back

 

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xr8 snorkel,typhoon lower snorkel,territory intake pipe,20% underdrive kit,pacemaker extractors,high flow cat,xforce exhaust,t56 conversion hd turbo clutch/ flywheel,m86 3.45 lsd,custom tune187.1rwkw as an auto

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 Post subject: Re: Coughing engine , ef
Posted: Tue Mar 08, 2011 4:09 pm 
Getting Side Ways
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Ride: GREEN ED XR6

Power: 249 rwkw

Location: CENTRAL WEST QLD
QLD, Australia

Hey it could be your injectors or fuel pump I have a set of good injectors (factory EF ones tht had a reco 20,000k ago) and a good s/hand fuel pump you can have for $ and price of postage if you want.

 

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AU2 engine with Hoppers head/cam performance package & spool rods / CP pistons ,Snort 1200 plenum, T56 Manual & Billet short shifter, Front & Rear Slotted rotors, Pedders lowered suspension, LSD and tuned with EMS stinger 4424 347rwkw THE ED XR6 IS BOOSTED

Last edited by EDXR6-Poly on Tue Mar 08, 2011 4:36 pm, edited 1 time in total.

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 Post subject: Re: Coughing engine , ef
Posted: Tue Mar 08, 2011 4:14 pm 
Getting Side Ways
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Age: 27

Posts: 424

Joined: 18th Feb 2010

Ride: Ford EF - Garret TO4Z

Location: Hobart
TAS, Australia

how much would you be after for the injectors

 

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Crank Assembly balanced, HV oil pump, ACL Trimetal bearings, "1 extra oil clearance taking to around 0.0650-0.0700 on mains and big ends, Moly rings,, Xr6 Cam, POD ( Possibly oversize injectors), Block, Head, Timing cover, belt idler, Alternator,painted in ford light blue

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 Post subject: Re: Coughing engine , ef
Posted: Tue Mar 08, 2011 4:37 pm 
Getting Side Ways
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Posts: 627

Joined: 5th Dec 2009

Gallery: 2 images

Ride: GREEN ED XR6

Power: 249 rwkw

Location: CENTRAL WEST QLD
QLD, Australia

$50 posted you can have the 6 injectors, fuel pump and a spare fuel reg for your EF.

 

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AU2 engine with Hoppers head/cam performance package & spool rods / CP pistons ,Snort 1200 plenum, T56 Manual & Billet short shifter, Front & Rear Slotted rotors, Pedders lowered suspension, LSD and tuned with EMS stinger 4424 347rwkw THE ED XR6 IS BOOSTED

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 Post subject: Re: Coughing engine , ef
Posted: Tue Mar 08, 2011 4:44 pm 
Getting Side Ways
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Age: 27

Posts: 424

Joined: 18th Feb 2010

Ride: Ford EF - Garret TO4Z

Location: Hobart
TAS, Australia

pm sent

 

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Crank Assembly balanced, HV oil pump, ACL Trimetal bearings, "1 extra oil clearance taking to around 0.0650-0.0700 on mains and big ends, Moly rings,, Xr6 Cam, POD ( Possibly oversize injectors), Block, Head, Timing cover, belt idler, Alternator,painted in ford light blue

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 Post subject: Re: Coughing engine , ef
Posted: Tue Mar 08, 2011 4:59 pm 
Oompa Loompa
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Age: 26

Posts: 27

Joined: 2nd Mar 2011

Ride: 1997 Ford Fairmont EL

Location: Melbourne
VIC, Australia

It could possibly have something to do with your air intake. I remember i once forgot to reattach my air system and when i started the car it was a lumpy piece of s**t. Maybe ur pod isnt on 100%? or its not clean & dusty ?

 

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 Post subject: Re: Coughing engine , ef
Posted: Tue Mar 08, 2011 5:07 pm 
Getting Side Ways
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Location: Noosa
QLD, Australia

Try seeing if its a bung coil pack. Had a similar issue on my EF. Would take off from lights or roundabout and would f@rt and cough and jump till i got till about 2500 onwards, then she was sweet. Changed the coil pack over and hey presto, brand new car!!!!

 

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99 AU Fairlane Ghia V8 Black Leather, 19" ANZ 5+5's with 245/35 rubber
Full sound system. Extractors, Dual 2.25" exhaust.
Lowered on Tickford XR8 springs and shocks!!

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 Post subject: Re: Coughing engine , ef
Posted: Tue Mar 08, 2011 5:14 pm 
Getting Side Ways
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Age: 27

Posts: 424

Joined: 18th Feb 2010

Ride: Ford EF - Garret TO4Z

Location: Hobart
TAS, Australia

ok ill grab one of my spares and go chuck it on,,,, but first coffie

 

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Crank Assembly balanced, HV oil pump, ACL Trimetal bearings, "1 extra oil clearance taking to around 0.0650-0.0700 on mains and big ends, Moly rings,, Xr6 Cam, POD ( Possibly oversize injectors), Block, Head, Timing cover, belt idler, Alternator,painted in ford light blue

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 Post subject: Re: Coughing engine , ef
Posted: Tue Mar 08, 2011 5:21 pm 
Getting Side Ways
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Age: 28

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Joined: 4th May 2007

Gallery: 8 images

Location: Noosa
QLD, Australia

I would suggest taking one lead off, putting it on new coil, next lead off, on new coil etc. As it is in a b**ch of a position and you cant see unless youve got b**ch arms or have someone looking from above.

 

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99 AU Fairlane Ghia V8 Black Leather, 19" ANZ 5+5's with 245/35 rubber
Full sound system. Extractors, Dual 2.25" exhaust.
Lowered on Tickford XR8 springs and shocks!!

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