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Timing chain rattle at 2500 rpm. 

 

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 Post subject: Timing chain rattle at 2500 rpm.
Posted: Sun Dec 05, 2010 10:22 pm 
Tyre Shredder
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Age: 47

Posts: 346

Joined: 16th Jul 2007

Ride: EL Falcon

Power: 146 rwkw

Location: sydney
NSW, Australia

I just noticed my chain rattles at approx. 2300-2500 rpm but goes away with less & more revs.
I can't notice it inside cabin. I came accross this noise when i put my new custom radiator & reved my engine from the engine bay. This might have been there for a long time, i don't know.
I have had the head shaved for more comp. & using the AU headgasket but i don't know if the rattle was there at the time.
I'm asking if anyone has had this problem & what could it be ?

 

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FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, CMS stage 3 head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.

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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Mon Dec 06, 2010 4:58 pm 
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Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

maybe a cam chain guide has broken????
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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Mon Dec 06, 2010 7:33 pm 
Tyre Shredder
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Age: 47

Posts: 346

Joined: 16th Jul 2007

Ride: EL Falcon

Power: 146 rwkw

Location: sydney
NSW, Australia

Thanks Troyman i will inspect soon.
By the way how's your beast going.

 

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FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, CMS stage 3 head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.

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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Mon Dec 06, 2010 7:39 pm 
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Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

racer wrote:
Thanks Troyman i will inspect soon.
By the way how's your beast going.


so far its going good mate, just been upgrading the clutch to hold the new found power.. :D
going for a dyno tune on thursday...
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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Mon Dec 06, 2010 7:40 pm 
Smokin em up
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Age: 26

Posts: 278

Joined: 21st Nov 2010

Gallery: 20 images

Ride: EF SERIES 2 XR6

Location: Wyong
NSW, Australia

HI, i have the same problem with my ef xr6, has been like it for a while now, a few months or so and i havent had any dramas yet, just havent had a chance to have a look yet! I was thinking maybey the tensioner or guids as already mentioned!

 

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96 EF XR6 Factory 5 sp, currently in the middle of building a new motor
75 XB hardtop, factory 351-4speed 9 inch 81000 genuine km's

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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Mon Dec 06, 2010 7:47 pm 
Tyre Shredder
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Age: 47

Posts: 346

Joined: 16th Jul 2007

Ride: EL Falcon

Power: 146 rwkw

Location: sydney
NSW, Australia

I must have had it for a long time aswell. No problems so far.
Still goes hard. :D

 

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FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, CMS stage 3 head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.

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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Mon Dec 06, 2010 7:49 pm 
Tyre Shredder
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Age: 47

Posts: 346

Joined: 16th Jul 2007

Ride: EL Falcon

Power: 146 rwkw

Location: sydney
NSW, Australia

Good luck Troyman.
Please let us know what it does buddy.

 

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FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, CMS stage 3 head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.

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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Mon Dec 06, 2010 7:50 pm 
Smokin em up
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Age: 26

Posts: 278

Joined: 21st Nov 2010

Gallery: 20 images

Ride: EF SERIES 2 XR6

Location: Wyong
NSW, Australia

AS they do, E-series ftw!!

 

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96 EF XR6 Factory 5 sp, currently in the middle of building a new motor
75 XB hardtop, factory 351-4speed 9 inch 81000 genuine km's

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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Mon Jan 24, 2011 7:25 am 
Getting Side Ways
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Age: 25

Posts: 3355

Joined: 10th Jan 2010

Gallery: 8 images

Ride: EL XR6

Location: albion park, wollongong
NSW, Australia

racer wrote:
I just noticed my chain rattles at approx. 2300-2500 rpm but goes away with less & more revs.
I can't notice it inside cabin. I came accross this noise when i put my new custom radiator & reved my engine from the engine bay. This might have been there for a long time, i don't know.
I have had the head shaved for more comp. & using the AU headgasket but i don't know if the rattle was there at the time.
I'm asking if anyone has had this problem & what could it be ?



Mate did u find out what it was mine does the exact same thing from 2000-2500, after I changed my cam

 

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El XR6 Turbo
Dark Agents,Sunroof, bilstein shocks, 6000k HIDS, 329 mm slotted rotors, twin pot calipers , Climate Control, GarrettT04 turbo,log manifold, crow turbo cam, microtech lt10c, 42lb injectors , 044, surge tank , T56 , rebuilt bottom end , alloy plenum .

Aiming for 300 rwkw

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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Mon Jan 24, 2011 11:26 pm 
Getting Side Ways
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Age: 49

Posts: 1966

Joined: 13th Aug 2005

Ride: 2000 Au wagon

Location: some where in nsw
NSW, Australia

It will be one of the guides

 

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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Tue Jan 25, 2011 1:49 am 
Tyre Shredder
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Age: 47

Posts: 346

Joined: 16th Jul 2007

Ride: EL Falcon

Power: 146 rwkw

Location: sydney
NSW, Australia

ef_falcon_95 wrote:
racer wrote:
I just noticed my chain rattles at approx. 2300-2500 rpm but goes away with less & more revs.
I can't notice it inside cabin. I came accross this noise when i put my new custom radiator & reved my engine from the engine bay. This might have been there for a long time, i don't know.
I have had the head shaved for more comp. & using the AU headgasket but i don't know if the rattle was there at the time.
I'm asking if anyone has had this problem & what could it be ?



Mate did u find out what it was mine does the exact same thing from 2000-2500, after I changed my cam


No not as yet. I had no time. I did speak to the people that serviced & ported the head. They told me that they shaved the head as much as they could on the safe side but on the border line of chain rattle.
I have changed alot of cams in my time & 3 in mine. I always take the proper precaurtions.
Mybe it's the 977b agressive power on at thos rpm. I don't know, i must inspect thos guids.
I have used all brand new parts like genuine timing chain tensioner (Ford), new rollmaster adjustable chain gear, new lifters ect. NO SHORT CUTS.

 

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FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, CMS stage 3 head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.

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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Tue Jan 25, 2011 4:22 pm 
Getting Side Ways
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Age: 32

Posts: 1833

Joined: 3rd May 2007

Gallery: 8 images

Ride: AUII XR6 Uterus

Location: South Coast
NSW, Australia

i'm fairly sure if you took enough off the head to make the chain slack enough to make the tensioner obsolete you would've gone way passed the safe marks cast onto the head. i'm pretty sure thats what they're there for, that and to stop pistons love tapping valves because thats bad.

those plastic chain guides are a throw away item everytime you open your engine in my opinion,particularly the first time you open up a second hand engine. they go hard n brittle in no time.
that and changing a whole set is so much fun :lol:

 

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Not to get technical, but according to chemistry alcohol is a solution.

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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Tue Jan 25, 2011 5:48 pm 
Tyre Shredder
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Age: 47

Posts: 346

Joined: 16th Jul 2007

Ride: EL Falcon

Power: 146 rwkw

Location: sydney
NSW, Australia

I agree. I'm just going to wait till it gets worse because if i have to change my guids i will rebuild my engine to suit a turbo set up.

 

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FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, CMS stage 3 head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.

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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Tue Jan 25, 2011 6:09 pm 
Getting Side Ways
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User avatar

Age: 32

Posts: 1833

Joined: 3rd May 2007

Gallery: 8 images

Ride: AUII XR6 Uterus

Location: South Coast
NSW, Australia

fair enough but if it gets enough slap up to make contact between moving parts that wren't meant to be together then be prepapred to double your rebuild bill.

 

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Not to get technical, but according to chemistry alcohol is a solution.

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 Post subject: Re: Timing chain rattle at 2500 rpm.
Posted: Tue Jan 25, 2011 6:17 pm 
Tyre Shredder
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Age: 47

Posts: 346

Joined: 16th Jul 2007

Ride: EL Falcon

Power: 146 rwkw

Location: sydney
NSW, Australia

I know. Just to let you know the noise is very very low. You can just hear it in the engine bay. In the cabin you basicly cannot hear it. I think it's not that bad. But i will inspect soon. Just the perfectionest i am.

 

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FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, CMS stage 3 head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.

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