[Vwdiesel] TTY bolts

[Travis .]

I don't think the flywheel to crank bolts are torque to yeld. There isn't enough gap on the bolt when it is all the way in to yeild. They should be replaced but I have gotten away on those by using blue lock tight. The criticle part with the new ones is the pre-applied locktight on the threads. Just make sure you apply locktite and torque properly and you should be good there. 

 

Travis 
 



Date: Fri, 12 Jul 2013 08:37:56 -0600
Subject: Re: [Vwdiesel] TTY bolts
From: ralphmeyermann at gmail.com
To: tgott at hotmail.com
CC: vwdiesel at vwfans.com


Let me guess that I forgot the flywheel bolts to Tue crankshaft??? If so could I get away with some grade 8 bolts with loctite??

Velma 82 na diesel westy

On Jul 11, 2013 6:17 PM, "ralph meyermann" <ralphmeyermann at gmail.com> wrote:


A little over a hundred bucks later at the dealership I purchased the set of rod,main and oil pump bolts.

Velma 82 na diesel westy

On Jul 11, 2013 5:22 PM, "Travis ." <tgott at hotmail.com> wrote:

The thing you need to think about is what will happen if the bolt breaks and are you willing to take the risk. Have I reused some-yes. But there are plenty I never would. There is a lot of stories of TTY bolts breaking on TDI motor mounts as they weren't replaced and 20K later the engine falls off the mount. Doesn't happen to everyone but it happens enough.



The whole reason for TTY bolts and locking fasteners is people don't know how to use a torque wrench on the bolts properly anyways so you design the human part out of it. I am sure there is other reasons but that is one of the reasons.
Travis



> In my distant (and somewhat checkered) past, I had an engine apart with these TTY bolts. The shop manual said to measure the thickness of the bolt at its thinnest point, and if it too stretched, then pitch it, otherwise it was OK to reuse. IIRC, it was either a Mercedes diesel (mid-sixties 200D) or a Porsche.
>
> Does this sound familiar?
>
> Dan Snyder - the Fancy Dancer


_______________________________________________
Vwdiesel mailing list
Vwdiesel at vwfans.com
http://www.audifans.com/mailman/listinfo/vwdiesel