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 Post subject: Re: Rockers and Timing belt
PostPosted: Wed Jan 01, 2014 6:19 pm 
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Joined: Sun May 01, 2011 2:27 pm
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Location: Milford, IL
Yeah I made sure that there was no slack in that span. I had to turn the crank backwards as you mentioned for the belt to grap the next tooth

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2005 Crd Silver Limited- arps, rockers, 7v etechno's, egr deleted, v6 airbox, metal cac's. Yeti's stage 2 tune. Euro TC, Ram tcm, pml transmission pan, facet lift pump


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 Post subject: Re: Rockers and Timing belt
PostPosted: Wed Jan 01, 2014 7:30 pm 
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jws84_02 wrote:
Yeah I made sure that there was no slack in that span. I had to turn the crank backwards as you mentioned for the belt to grap the next tooth



I heard a sound outside, I think it was KJJET's head exploding.

:ROTFL:

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Silver 2006 KJ 2.8L CRD Limited:
GDE ECO Tune / Fumoto Valve / E-Tecno GX3123 7v Glow Plugs / 2nd Gen Fuel Head / Mishimoto RED Hoses / Rockers/Lifters @ 114k / Hayden FC + 11 Blade Nylon / Sears P1 Battery / Transgo 45RFE-HD2 Reprogramming Kit / Timken Front Bearings


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 Post subject: Rockers and Timing belt
PostPosted: Wed Jan 01, 2014 7:38 pm 
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Location: Milford, IL
Hexus wrote:
jws84_02 wrote:
Yeah I made sure that there was no slack in that span. I had to turn the crank backwards as you mentioned for the belt to grap the next tooth



I heard a sound outside, I think it was KJJET's head exploding.

:ROTFL:


What's that mean

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2005 Crd Silver Limited- arps, rockers, 7v etechno's, egr deleted, v6 airbox, metal cac's. Yeti's stage 2 tune. Euro TC, Ram tcm, pml transmission pan, facet lift pump


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 Post subject: Re: Rockers and Timing belt
PostPosted: Wed Jan 01, 2014 8:34 pm 
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Joined: Thu May 09, 2013 6:20 pm
Posts: 23
Well I was afraid I opened a can of worms. Not sure what to do now.

My GDE tune was done at about 90000 miles I believe.

Not afraid of getting my hands dirty but this sounds like quite a daunting task. Perhaps I should go back to TDI's.


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 Post subject: Re: Rockers and Timing belt
PostPosted: Wed Jan 01, 2014 9:26 pm 
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Joined: Tue May 29, 2012 8:45 am
Posts: 908
Location: Western, PA
jws84_02 wrote:
Yeah I made sure that there was no slack in that span. I had to turn the crank backwards as you mentioned for the belt to grap the next tooth



YEP..... Never turn it backwords!!! Sorry SAM dose not show it done correctly. When the belt is held at the crank and the cam shaft sprockets are loosened!! (Yes you need to do this) the belt will slide right on.

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05 Liberty CRD Sport with Leather 115k
GDE ECO, No EGR, no FCV, (system gone)
Oil Drain plug P/N 090-039
K&N Air Filter, 2nd gen Fuel filter head
NEW Rockers & lifters
Mobil 1 0w-40
Stant 13519 195 deg inline Thermostat.
0 281 002 845 MAP
Etecno GX3123 7v Glow Plugs
Advance Gold 800CCA Battery
Traded it for a Quality VW TDI


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 Post subject: Re: Rockers and Timing belt
PostPosted: Wed Jan 01, 2014 9:35 pm 
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Joined: Sun May 01, 2011 2:27 pm
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Location: Milford, IL
Oops...well my tb job was 30k miles ago and haven't had any problems. I'm actually hopin my rockers make it to the next tb job

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2005 Crd Silver Limited- arps, rockers, 7v etechno's, egr deleted, v6 airbox, metal cac's. Yeti's stage 2 tune. Euro TC, Ram tcm, pml transmission pan, facet lift pump


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 Post subject: Re: Rockers and Timing belt
PostPosted: Wed Jan 01, 2014 10:30 pm 
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Joined: Mon Oct 20, 2008 4:24 am
Posts: 1520
Location: Australia
kjjet wrote:
jws84_02 wrote:
Yeah I made sure that there was no slack in that span. I had to turn the crank backwards as you mentioned for the belt to grap the next tooth



YEP..... Never turn it backwords!!! Sorry SAM dose not show it done correctly. When the belt is held at the crank and the cam shaft sprockets are loosened!! (Yes you need to do this) the belt will slide right on.


I don't think you have understood, this is a very common technique used by professionals that I know as well. No one is suggesting rotating the engine backwards, and the cams are locked by the locking pins. If your using the hex key as the flywheel lock, there is enough slack to just back the crank fractionally, to grab the tooth.

Sent from my EBM727KC using Tapatalk 2


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 Post subject: Re: Rockers and Timing belt
PostPosted: Thu Jan 02, 2014 10:04 am 
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Joined: Tue May 29, 2012 8:45 am
Posts: 908
Location: Western, PA
Glend wrote:
kjjet wrote:
jws84_02 wrote:
Yeah I made sure that there was no slack in that span. I had to turn the crank backwards as you mentioned for the belt to grap the next tooth



YEP..... Never turn it backwords!!! Sorry SAM dose not show it done correctly. When the belt is held at the crank and the cam shaft sprockets are loosened!! (Yes you need to do this) the belt will slide right on.


I don't think you have understood, this is a very common technique used by professionals that I know as well. No one is suggesting rotating the engine backwards, and the cams are locked by the locking pins. If your using the hex key as the flywheel lock, there is enough slack to just back the crank fractionally, to grab the tooth.

Sent from my EBM727KC using Tapatalk 2



Glend....O No I understand what some are doing and why. I believe if you are going to advise anyone as to perform a job on an engine like setting the timing! Your information should be correct! Just becouse its on Youtube dose not mean its correct. I know lots of people have done this and their Jeeps are running good. But done per the Wrong way leaves room for error.

The Timing system on the CRD is like several small engines with overhead cams that lock into position, permitting the cam sprockets to move during installation of the belt. These systems permit precise setting of the cams. The basis for the correct timing (precise) is setting the crank at a 90 degrees past TDC, Pinning the cams, Loosening the Cam sprockets and setting the pump timing. The service manual then calls for installing the belt at the crank, Using a VM belt holding tool (to assure the belt stays in the grove of the crank, I use a vice grip. Not to grip down on the belt, but attached to the crank with the tip of the pliers pressing against the belt so it dose not fall out of the crank grove) You then install the belt CCW over the Pump pulleys, loosened cam sprockets then the tensioner. No moving of the Crank. (even a tiny bit)
Now set the Tensioner with the sprockets still loosened. (most important) This places a uniform tension throughout the belt. Then tighten the Sprokets! This gives you the PRECISE timing setting of the cam's to the crank! Just like the VM factory did it.

Any other way you may have the timing off slightly. Will your engine run good? Sure but you may not have the best MPG and or power you could have had.

Sorry for the long winded reply, but i believe this is very important to show new people how to do it correctly.

Best regards
KJJET

_________________
05 Liberty CRD Sport with Leather 115k
GDE ECO, No EGR, no FCV, (system gone)
Oil Drain plug P/N 090-039
K&N Air Filter, 2nd gen Fuel filter head
NEW Rockers & lifters
Mobil 1 0w-40
Stant 13519 195 deg inline Thermostat.
0 281 002 845 MAP
Etecno GX3123 7v Glow Plugs
Advance Gold 800CCA Battery
Traded it for a Quality VW TDI


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 Post subject: Re: Rockers and Timing belt
PostPosted: Thu Jan 02, 2014 5:31 pm 
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Joined: Mon Oct 20, 2008 4:24 am
Posts: 1520
Location: Australia
It's also important that they know that it is not necessary to buy all the suggested VM tools to do the job, which a Jeep dealer might have but makes the job more expensive for DIY owners with the skills to do it. The Service Manual also says to disassemble the front end to gain access and that's made un-necessary by the fan shroud mod - you can avoid that labor intensive disassembly. The Service Manual is a useful document but it is not the oracle of all things CRD and was written before all the Body of Knowledge achieved through actual work experience was developed.


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 Post subject: Re: Rockers and Timing belt
PostPosted: Thu Jan 02, 2014 7:02 pm 
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LOST Junkie

Joined: Tue May 29, 2012 8:45 am
Posts: 908
Location: Western, PA
You are correct. That's why I gave several ways to gain access to the timing belt. I also made all my own tooling and have sent pictures to over a dozen members.

But nothing is more important to the performance of your engine than being timed correctly.

Best regards
KJJET

_________________
05 Liberty CRD Sport with Leather 115k
GDE ECO, No EGR, no FCV, (system gone)
Oil Drain plug P/N 090-039
K&N Air Filter, 2nd gen Fuel filter head
NEW Rockers & lifters
Mobil 1 0w-40
Stant 13519 195 deg inline Thermostat.
0 281 002 845 MAP
Etecno GX3123 7v Glow Plugs
Advance Gold 800CCA Battery
Traded it for a Quality VW TDI


Top
 Profile  
 
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