RE: [DML] Loose fuel lines - why??

["Joseph Kuchan" <josephkuchan@xxxxxxxxxxx>]

Maybe your torque wrench went way out of spec? I had a cheapy torque wrench 
that went out of spec the other way - it was over-torquing everything. In 
fact, we even nearly twisetd a few of those hollow bolts off. Needless to 
say I got a new torque wrench!

Try doing it without a torque wrench. Use a 1/4" ratchet and tighten them 
down until you feel them get very "snug". You have to develop a "feel" for 
the right amount of torque. If any get loose after that snug them down a 
little tighter.

The bolts are hollow and can easily be twisted right off, but even if you 
tighten them down so much they twist off it is still easy to take the stub 
out with your fingers afterwards! For some reason these bolts will not 
"lock" into the female threads no matter how hard you tighten them down. 
That's why I think that your wrench is just applying too llittle torque. 
These bolts WILL come loose if they are uinder-torqued.

-Joe Kuchan

>From: "Tom" <tomciodmc@xxxxxxxxxxxxxx>
>Reply-To: dmcnews@xxxxxxxxxxxxxxx
>To: "DML" <dmcnews@xxxxxxxxxxxxxxx>
>Subject: [DML] Loose fuel lines - why??
>Date: Sun, 15 May 2005 15:42:27 +0200
>
>Hello all
>
>I need some advice from the more techy people on the list because I have a
>very strange situation which I've never seen before. I'm completely stomped
>and don't know what to do. Please help!!
>In the process of restoring the outside of the engine I ended up removing
>all the fuel lines from the fuel distributor. I just reassembled
>everything... I used new copper washers for every fuel line and I torqued
>the (hollow) bolts to the proper value. Then I started the engine and let 
>it
>warm up (cooling fans cycling). I then let the engine cool down completely.
>When I tried to restart the engine I noticed that there is gas spraying all
>over the engine. I thought what the...... I then noticed that EVERY bolt on
>the fuel dist was so loose that I could turn it with my fingers without
>using any force!! Same thing happened with the three bolts securing the
>dist. to the mixture control unit! What happened? I did that on more that
>one occasion and never ever had a problem with loosening fuel lines. This 
>is
>a first for me. Any ideas anyone? All the other bolts in the fuel system
>were still nice and tight - injectors, cold start valve, warm up reg.
>Any ideas on what to do so it doesn't happen in the future?
>
>Tom Niemczewski
>jamesik@xxxxx
>VIN 6149 (in Poland!)
>Save the dream so you can live the dream...
>
>
>
>
>
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