Ahhh, I see! Nice!

Well, .... I sure am glad I didn't have half doors on this last trip.... We hit a pretty nasty mud path along the way down this narrow path, lol... Lets just say... I'd have been BATHING in mud! lol.

That's a REALLY cool mod... Will enjoy seeing you do it

 

so after hearing about another engbldr timing chain kit failing, i decided to check mine. i have been hearing a rattling noise (think pennies in a small tin can) under decent torque. took the valve cover off and found that the chain was loose, but nothing else was broken or worn. i was able to rotate the cam gear to pull the driver's side tight before i buttoned everything back up.

here is the video from tonight:


and here is the video from when my oem guide broke, for comparison:


any insight into weather it's fine or not, please let me know. i'm still figuring these engines out

 

Don't have an answer for you, but the only way to be sure us check the tensioner.

 

Hey Ian.....

Hmmmmmm.... Well, that's a tricky one. You should be able to slide a LONG screwdriver down in there and push the tensioner back(like you would to get the tension off the chain.... And it should resist you a bit. You'll obviously hear the 'SQWUSHHHH' of it forcing oil back into the galley that feeds it... AND, you should then be able to turn the crank over twice back to TDC Comp. Stroke and see if the slack pulls up as you rotate it.

IIRC, you need to be careful about rotating the CAM and not rotating everything from the crank. ESPECIALLY counterclockwise(This is why they tell you how to wedge something in the gear holes through the tower to gain leverage and keep the cam from turning AT ALL while you take the bolt to 58#'s...) ... Anyway, what exactly did you do pertaining to the CAM bolt? Clockwise? >>> And the slack was taken up?

Turning anything like that is only going to 'reveal' something, anyhow.. it wont change anything. All that is done via the tensioner thereafter first assembly.

I think Brandon's thread has MANY OF US curious, right? hahaha.

My noise is ONLY in the morning.... And more like marbles in a high tinsel can, lol. Just for a second.. Never in higher RPM or anything throughout driving. And I'm pretty sure never after warm.

I sure hope that much play doesn't mean you'll have to go back in there, Ian.. I can understand your concern. It IS a bit of work, FO SHO! Sure sounds like those two signs(noise under load, and play, IF IT IS in fact too much) lean toward Tensioner... But I WOULD DEFINITELY first talk to Tod, buddy... Don't trip too much. I just sure hope, IF IT WAS a bad batch of OSK Tensioners, that we'd hear about it before an XXXtreme incident, YEAH?

PS> I had more recall on this a few back, ... but all that's going on, I'm a bit frazzled in the cabbage container, lol... But I just seem to remember there being SOME slack over there until it's turning/oil pressure is able to increase pressure against the Tensioner shaft..... I'ma looksee a lil more and be back asap.

 

Incredible man maybe i should find a way to clock and connect my toyota transfer casr behind my np208... it should handle rhe extra tourqe from a th350 mounted to a rv model sbc 350 right??? Lol but seriously i like ur set up!!

 

Seems I also remember a couple PRIMARY causes for this.... WHICH I TOTALLY doubt, considering how thorough you are and most likely did a 4crawler print out of the timing cover bolts/template?

1. Oil Pump top bolt (that get's sealant) either is the wrong bolt or too much sealant, which causes it to stop the tensioner from fully extending.

2. The Chain Drive Sprockets are worn which can provide slop(VERY unlikely, and I'm sure you got the whole kit, right?

3. The Tensioner is just simply defective... which happens. But WOW, also not very likely from the OSK kits... Especially to happen this quickly and to maybe MORE THAN ONE????????

4. Debris or too much rtv that has broken free winds up in the small oil galleys that lead through and then to the galley that feeds the tensioner. Even with NO oil pressure going on, it should provide decent pressure... But it's not enough to make up for slack on both sides.. It's just making up for slack on the passenger side.

The tension should almost always be pretty taught, NOT SUPER TIGHT, but taught, on the driver side, as I remember... It's the drive side that 'drives' the cam via the crank... Distance between the two gears and the appropriate links should be around the same within the thousandths, right? Neither gear gives... Therefore, I would THINK, only slack that's noticeably 'slacky' would be on the passenger side??? Try turning the crank while you push against the chain, seeing if it's slack is taken up quickly.

Just thinking out loud trying to keep this going until you're comfy that it's acceptable play or decide you want to dig further

 

Skipping to the end of this thread.... Trevorkian found that the top, passenger side guide bolt fell out and the chain took up that slack and the tensioner couldn't keep up and, well, I guess it then snapped off the driver side guide and was allowing so much slack that it was pushing into the guide bolts and other stuff's .....

https://www.yotatech.com/forums/f115...r-side-158634/

Another thread........ Here, we find PIRAFILTH and some funny banter and... well, no resolution, but it get's into LOTS of interesting theories.........

http://www.pirate4x4.com/forum/showthread.php?t=441380

I think some slack, depending on rotation and lack of oil pressure is normal(not sure if THAT, what you showed, is "normal"........ But I don't think it's dramatic.

Again, oil pressure comes to mind....... Have you check the children... I mean Compression, lately? As I recall(remember, be kind, ....boiled cabbage up there for me right now! hehehe)..... You did a timing kit, .... not a head or lower end rebuild... right? But you don't have CRAZY excessive miles as I remember, either.

I'll see whatcha got going on tomorrow, bud... Best wishes on this!

 

in other news:

 

New house?

 

yup! my first place

 

Looks like a sweet party pad! Better than my place...my parents house

 

Wow, congratz, Ian!

 

Congrats!! Now ur truck funf is smaller lol!! But hey what good is a truck without a home right!!??!!

 

Congrats!

 

Congrats on the new house Ian! Are you still in Alexandria or did you move somewhere else?

 

Are u in Louisiana?? Jw cause there is a alexandria la and thatts a few hours away from me ( seminary Mississippi )

 

i'm in maryland now. i'll get a few pics up once i get the key, but i like the place. it's got 2 porches, a fireplace, and a view of the bay

 

Sorry, I was talking about Alexandria, Virginia (Washington D.C. area).

 

Its cool oh well lolcongrats on the house again!! I have family up the so i know housing is really expensive up there

 

this is one reason i love my new trans: