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local painter
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Discussion Starter #201

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local painter
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Discussion Starter #202
so I was installing the timing chains but the plunger on the tentioners were bottomed out.
this is due to the TFS head design moving the cams make the chain tighter than OE. So I’ll be taking the tentioners apart and having the piston turned down .100 and try again. Always somthing ??‍♂
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local painter
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Discussion Starter #204 (Edited)
What chains did you use, 5.4 are different then the 4.6
Cloyes chains.
5.4 chains have 2 black links on one end and a single on the other and measure 23”
4.6 chains have only 1 black link on each end.
also @Dusten measured his for me??

I think the rigidity of the metal guides made the issue more apparent. The last engine I used plastic guides and they likely flexed just enough to allow the plunger to travel. It wouldn’t take much.
 

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11 second street truck
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10,644 Posts
What chains did you use, 5.4 are different then the 4.6
It's a known issue with tf heads. I didn't have the issue before because I used nylon tensioners
 

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local painter
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Discussion Starter #206
Taking these apart is super easy. Just squeeze the piston and turn the ratchet 90*
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Registered
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the only thing I like to squeeze is a fine woman's ass.
 

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local painter
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Discussion Starter #208
The plunger needs to move .050 .
how it is now it’s completely bottomed out. So I will have the machine shop take .100 off of the piston.
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11 second street truck
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10,644 Posts
What's the maximum you can machine before it's to much?
 

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local painter
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Discussion Starter #210
What's the maximum you can machine before it's to much?
The piston just needs to travel a minimum of .050 (1.27mm) but the chain guide CANNOT contact the tentioner housing.
So I’m going to do .100 and check it. If more is needed I’ll do .050 and check again.
 
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local painter
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Discussion Starter #211
So I get .191 between the guide and tentioner housing with the tentioner piston in stock form.

I then removed the piston and installed the tentioner. I simulated oil pressure with a wedge and took a reading of .111 so .191-.111= .080 off the tentioner to get same reading as without piston installed.

So add the .050 needed for piston movement and I should remove .130 material from the base of the piston to get me to the proper length needed.??
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local painter
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Discussion Starter #212
Installed the last hose end today.
now I need to order a new fuel filter for this Fuel Lab. Iirc 12micron paper for E85 is ideal? ??‍♂ I’ll install the fuel system while I wait on the machine shop to cut down the tentioner pistons.
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local painter
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Discussion Starter #213
Well the shorter tentioner pistons didn’t resolve the issue.
It’s common for the left side to be a little tight with TFS heads but not the Right side... ?
I believe the new Cloyes chain’s have the China ?. Made in (Chi-Na) so I’m praying ?? the stock OE chains resolve the issue.
I tried the plastic guides and the old style cam gears that were fine on my last short block and no joy. So it’s the chain’s or the short block is fucky somehow. ??‍♂
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local painter
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Discussion Starter #215

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local painter
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Discussion Starter #216
These chains will not lay that way. This is the closest to that I can get with these Cloyes chains. I’m measuring from pin to pin.
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local painter
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Discussion Starter #217
Here’s a Morse chain that’s 22/7/16” from pin to pin. Not mine

I really hope it’s my chains that’s the issue ?
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2.9 Whipple E85R A1 Transmission
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Here's what I see..., the chain nubs are not even with the TF links, vs the OMM chains. This could cause the chain to ride higher on the gear... making them shorter.
Do you have any used OEM chains, Try one of those...
538132
 

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local painter
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Discussion Starter #220 (Edited)
They do ride high on the gear. Enough to see daylight through the lower saddle. But that’s with the new comps, old Comps and the Cloyes adjustable gears that are no longer available. I confirmed this today. My chains I have now are in the 1st and last pic..they seem to ride higher..
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