Advice needed, timing chain?
my brother. In that thread, I got some response on ticking noise from my 2010 4.6 3v. I now think I probably have a bad timing belt tensioner. With only 80k miles on the truck how deep should I go with the repair? I stuck a scope down the oil fill cap and it looks very clean in there from what I could tell. Full timing chains and cam phasers or could I get by with just tensioners? If I go the full replacement route, what are the trustworthy brands? RockAuto.com has lots of choices. I clearly don’t know enough about these triton engines to proceed. Any response is appreciated.
that said, I have only replaced tensioners and guides and put it all back together. I strongly don't recommend that but I didn't have many options at the time.
there complete Motorcraft kits from sites. you'll have to price it out. I got mine from Tasca Parts. Make sure you don't buy counterfeit parts.
https://www.freedomracing.com/ford-parts.html?cat=575&p=2
Last edited by unibody62; Aug 28, 2024 at 02:46 PM. Reason: Thanks
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BUT..... With these engines & the lack of maintenance previous owners do, there is a high likely hood that some of your guides (current or past ones) have come apart & are in the pan + pickup. When I had to do mine, I was VERY happy I bought the oil pan gasket so I could drop the pan. There were lots of plastic parts down there & in the pickup.
Pieces found in the pan & pickup
Another "side quest" while doing this job is to check the roller followers & tensioners. If you watch some of the videos FordTechMakuloco has you will see him demonstrate what happens when the bearings go on the followers. He also shows how the tensioners won't "pump up" & keep proper pressure under the follower. I just bought all the FoMoCo parts to replace while I was in there since you could hear some valve train noise in there. I was VERY happy again that I did as there were several followers & tensioners that had failed.
NOTE: If you don't replace them, DO NOT move parts around. Put them right back where you found them.
Also, ditto on all Motorcraft parts + Melling oil pump
I would also recommend, if you are replacing the water pump at this time (good idea), I pulled the pump BEFORE you get the cover off. It keeps the coolant out of the oil pan. Yes you should be changing the oil during this anyway, but the local collection centers won't take oil with coolant in it.
BUT..... With these engines & the lack of maintenance previous owners do, there is a high likely hood that some of your guides (current or past ones) have come apart & are in the pan + pickup. When I had to do mine, I was VERY happy I bought the oil pan gasket so I could drop the pan. There were lots of plastic parts down there & in the pickup.
Pieces found in the pan & pickup
Another "side quest" while doing this job is to check the roller followers & tensioners. If you watch some of the videos FordTechMakuloco has you will see him demonstrate what happens when the bearings go on the followers. He also shows how the tensioners won't "pump up" & keep proper pressure under the follower. I just bought all the FoMoCo parts to replace while I was in there since you could hear some valve train noise in there. I was VERY happy again that I did as there were several followers & tensioners that had failed.
NOTE: If you don't replace them, DO NOT move parts around. Put them right back where you found them.
Also, ditto on all Motorcraft parts + Melling oil pump
I would also recommend, if you are replacing the water pump at this time (good idea), I pulled the pump BEFORE you get the cover off. It keeps the coolant out of the oil pan. Yes you should be changing the oil during this anyway, but the local collection centers won't take oil with coolant in it.
Not really since I ended up using it all. I suppose I could have just left the valve train alone & lived with the ticking & loss of performance but I'm just not wired that way.
I didn't make any videos of the followers I pulled since they were VERY similar condition to FTML's video. (and I don't really do the whole make videos of myself thing) The needle bearings were in various conditions. Some seemed ok while others went from "that's a bit loose" to "holly crap". I did mine around 40k miles ago so it's been a few years & at the time all the followers & tensioners (old school engines these were the rockers & lifters) were not too expensive so I just added them to the list.
the pile-o-parts & special tools
As for the oil pump: I will also defer to the video FTML has on replacing it with the Melling HV. The 2 small bolts that attach the pickup tube to the bottom of the pump are a mixed bag. They point down at an angle & REALLY want to fall in the pan. You can avoid this with some stuffed rags but that doesn't help you with trying to get them back in. You really want to use a ratcheting box wrench on both & the driver's side one is "easier" to get in & out. The passenger's side bolt is "ok" to get out but a SUPER PITA to get back in without cross threading into the aluminum. I kind of did it both ways with the pan on & off. I tried to avoid dropping the pan but after I got the pump in I did some side by side comparisons of the new & old guides. (should have done that before putting the pump in...) There were A LOT of missing pieces as you saw so it was time to drop the pan & drop the pickup tube. Putting it back in after cleaning out the pan & pickup was easy compared to when the pan was on. My truck is 4x4 & even with that dropping the pan wasn't all that difficult.
view from below with the pan off
fully installed
Water Pump: As you can see above, there is a new one in there. I would recommend doing it at the same time. Note to self...... Be VERY careful putting the new pump in & slowly work the o-ring gasket into the hole. Or go out to the parts store & get a 2nd one if you are a meat-head like me & you nicked the edge putting it in. It is a VERY tight fit.










