Failure of right passenger side timing guide - Ford Mustang Forum
 
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post #1 of 4 (permalink) Old 05-10-2016 Thread Starter
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Failure of right passenger side timing guide

I posted previously about a loud rattling noise and had the car checked out. First tried replacing the tensioners and the issue persisted. then popped off the valve cover and the worst possible scenario had occurred. The right side timing guide has failed and now it will be necessary to replace the whole cassette. (4.0 l V6 2005)

Obviously this is going to be extremely labor intensive (thanks to the dumbass who designed this engine) and I'm wondering what the best options are.

Could the failure of the rear timing cassette caused other significant damage? (Car driven 2 miles since noise started).
What should I be looking to pay? I'm going in for the estimate today.
If I have my mechanic do this, what else should I have him do while the engine is out?
Should I consider replacing the engine?

Thanks for any advice,
Blake

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post #2 of 4 (permalink) Old 05-16-2016
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Originally Posted by themamba24 View Post
I posted previously about a loud rattling noise and had the car checked out. First tried replacing the tensioners and the issue persisted. then popped off the valve cover and the worst possible scenario had occurred. The right side timing guide has failed and now it will be necessary to replace the whole cassette. (4.0 l V6 2005)

Obviously this is going to be extremely labor intensive (thanks to the dumbass who designed this engine) and I'm wondering what the best options are.

Could the failure of the rear timing cassette caused other significant damage? (Car driven 2 miles since noise started).
What should I be looking to pay? I'm going in for the estimate today.
If I have my mechanic do this, what else should I have him do while the engine is out?
Should I consider replacing the engine?

Thanks for any advice,
Blake

Well, the engine is going to have to be removed. That's the major problem.

As far as further damage, I highly doubt it, but if there are pieces of the cassette that fell deeper into the abyss, your mechanic is going to have to do some keen inspecting and cleaning.

You'd be better off having both cassettes, guides, chains, and seals replaced.Check your gears to make sure there is no damage. If it were me, I'd remove and reseat the heads (replace head gaskets).

You might be better off looking for a low mileage 4.0 out of any 2005-2010 v6.


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post #3 of 4 (permalink) Old 05-16-2016
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Oh and for pricing, I'd think it would be safe to say that most mechanics would charge $1500-2500 for the job.

4.5L Stroker Kit, SSM Custom cams, Wiseco forged pistons, ARP 2000 head studs, Mac Long Tube Headers, FRPP Oil Cooling System, 4.10 Gears, K&N Performance Filter, NGK Iridium Spark Plugs, 39lb Ford Racing Fuel Injectors, MAC Performance Pro Chamber, 2.25" dual straight pipes, 4" chrome tips, DynoMax Super Turbo Mufflers, 4" Aluminum Driveshaft, Eleanor Hood, CDC Aggressive chin spoiler, Koni Sport suspension, AppRadio 4 with PC, spunkymunkymusic.com
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post #4 of 4 (permalink) Old 05-17-2016
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I think you have to remove the engine to get to the timing chain at the back of the engine. The 4.0 is just oddly designed that way.

Another option you might consider is getting another used engine from a used auto part dealer. I'm sure there are plenty of 4.0 engines out there. Might be able to get one for relatively cheap and all you have to pay for is the swap rather than tearing the whole engine apart only to find more stuff wrong.

Ask the mechanic and see if they can tell the extent of the damage. They can help you consider pricing out the options of repair, swapping, or possible complete rehab.

Keep us updated.

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