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New timing chain guide/block interference?

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Old Nov 20, 2020 | 08:26 AM
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New timing chain guide/block interference?

This on a 2V 4.6 but please timing set experts don't stop reading!

I'm doing a timing set on this 4.6 and found a bit of interference between this "rib" in the LH lower guide and this "nub" on the block. Seeing no other alternative and reasoning that it doesn't affect strength of the guide we simply shaved down the offending rib.

The parts are from MMR -- I ordered their kit of OEM chains and "quality aftermarket" guides.



 
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Old Nov 20, 2020 | 11:29 AM
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On the 5.4 there is a left and right its a very subtle difference . I will defer to 4.6 guys on this but I would have called the supplier.
 
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Old Nov 20, 2020 | 11:44 AM
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The left and the right are very different. We were referencing the FSM and kept checking to see if we somehow had them mixed up or if we somehow managed to have this one backwards, upside down, inside out LOL etc

Still appreciate the reply and wonder if anyone else has encountered this?
 
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Old Nov 20, 2020 | 11:51 AM
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Something isn't right with those guides. Those are not the current Motorcraft parts. The guide rail is too thin and the ribs are wrong.
 
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Old Nov 20, 2020 | 11:59 AM
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Originally Posted by ford390gashog
Something isn't right with those guides. Those are not the current Motorcraft parts. The guide rail is too thin and the ribs are wrong.
Thank you!

I dunno, this was the kit:
​​​​​​2V 4.6 Mustang GT / Crown Vic / F150 Timing Chains & Guides ONLY [400006TCG] - $139.99 : Modular Motorsports, Home of the worlds fastest Fords
 
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Old Nov 20, 2020 | 12:02 PM
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Those are the cheap Chinese knock offs. You will have issues. The same ones are plentiful on Ebay. Only the Motorcraft parts should be used.
 
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Old Nov 20, 2020 | 12:51 PM
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Originally Posted by ford390gashog
Those are the cheap Chinese knock offs. You will have issues. The same ones are plentiful on Ebay. Only the Motorcraft parts should be used.
Ok thank you! I figured whatever MMR provided would be at least "decent".... perhaps not
 
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Old Nov 20, 2020 | 02:13 PM
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Did the engine originally have all plastic guides? Rockauto shows a metal/plastic guide and a second Windsor style all plastic guide like your pictures.
 
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Old Nov 20, 2020 | 08:06 PM
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Originally Posted by Lime1GT
Did the engine originally have all plastic guides? Rockauto shows a metal/plastic guide and a second Windsor style all plastic guide like your pictures.
I'd say so


 
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