[Vwdiesel] Timing belt and tensioner change
Craig Osborn
cosborn at epix.net
Mon Jan 11 21:20:42 PST 2010
Today I changed my timing belt and tensioner. After the job was done, I
started the truck and it ran but not as good as before. It ran fine (while
it was running) but acted like it was starved for fuel and kept stalling. I
looked around and noticed a split in the fuel line that goes from the fuel
pump to the top of the filter. It was brittle and I guess that it got
cracked when I moved it around while I was working. I will but some fuel
line and see if that fixes the stalling.
I am concerned about one thing. I never could find any kind of mark on the
flywheel that looks like the TDC mark that is shown in the manual. I went
around and around and never found it so I ended up locking the cam with the
cam lobes pointing up - TDC and then locked the fuel pump and changed the
belt and tensioner. I also made another mistake and set the tension on the
belt while the locking pin was still in the fuel pump. I only realized my
error after looking at the manual after I put everything back together.
I plan to open it back up to check the tension but I want to know what I
should do in case my tensioning error made the belt jump a tooth or two.
How can I conform correct timing if I cant see TDC on the flywheel. Is it
possible to have a flywheel without any markings?
Craig
> -----Original Message-----
> From: vwdiesel-bounces at vwfans.com
> [mailto:vwdiesel-bounces at vwfans.com] On Behalf Of
> vwdiesel-request at vwfans.com
> Sent: Monday, January 11, 2010 3:00 PM
> To: vwdiesel at vwfans.com
> Subject: Vwdiesel Digest, Vol 75, Issue 10
>
>
> Send Vwdiesel mailing list submissions to
> vwdiesel at vwfans.com
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://www.audifans.com/mailman/listinfo/vwdiesel
> or, via email, send a message with subject or body 'help' to
> vwdiesel-request at vwfans.com
>
> You can reach the person managing the list at
> vwdiesel-owner at vwfans.com
>
> When replying, please edit your Subject line so it is more
> specific than "Re: Contents of Vwdiesel digest..."
>
>
> Today's Topics:
>
> 1. A4 engine mounts (Shalyn Shourds)
> 2. Re: A4 engine mounts (Tony and Lillie)
> 3. Re: A4 engine mounts (James Hansen)
> 4. Heater question (mikitka)
> 5. Re: Heater question (lbaird119 at aol.com)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 10 Jan 2010 21:08:30 -0600
> From: Shalyn Shourds <sshourds at flash.net>
> Subject: [Vwdiesel] A4 engine mounts
> To: vwdiesel at vwfans.com
> Message-ID: <4B4A962E.6020602 at flash.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Just a bit of hard-won education for the group. It's not terribly
> difficult to strip out the threads on the passenger side "pendulum"
> mount on a A4 TDI, which you have to remove to do a timing
> belt. As of
> tonight, I can say with relative certainty that a
> helicoil-style thread
> repair insert will not take the necessary torque.
>
> It's going to be a long long walk to work tomorrow.
>
>
>
> -Shalyn
>
> New services offered: killing houseplants, breaking cars, dooming
> relationships. The only thing you can do with this kind of karma is
> market it.
>
>
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sun, 10 Jan 2010 21:17:26 -0600
> From: "Tony and Lillie" <tonyandlillie1 at earthlink.net>
> Subject: Re: [Vwdiesel] A4 engine mounts
> To: "Shalyn Shourds" <sshourds at flash.net>, <vwdiesel at vwfans.com>
> Message-ID: <000601ca926c$9a4b9b90$6b01a8c0 at tfh5lqoxlbb5rh>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> I dealt with this several times in teh shop, it will also
> happen to the
> transmission mount. I can't say that I remember what we did
> to fix them. but
> I can say I wish I weren't three hours away, I'd be over after work
> tomorrow..................................:(
>
> Tony
>
> ----- Original Message -----
> Subject: [Vwdiesel] A4 engine mounts
>
>
> > Just a bit of hard-won education for the group. It's not terribly
> > difficult to strip out the threads on the passenger side "pendulum"
> > mount on a A4 TDI, which you have to remove to do a timing
> belt. As
> > of tonight, I can say with relative certainty that a helicoil-style
> > thread repair insert will not take the necessary torque.
> >
> > It's going to be a long long walk to work tomorrow.
> >
>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 11 Jan 2010 00:01:07 -0600
> From: James Hansen <jhsg at sasktel.net>
> Subject: Re: [Vwdiesel] A4 engine mounts
> To: vwdiesel at vwfans.com
> Message-ID: <000001ca9283$77d0e3b0$6772ab10$@net>
> Content-Type: text/plain; charset=us-ascii
>
> Well that sucks Shalyn.
> There are other style threaded insert repair devices
> available. If there is enough material in the diameter (so
> the hole you drill can be bigger), you can get threaded
> inserts that look like the old aircooled case savers- they
> are a thin piece of carbon steel pipe with threads inside and
> out. The beauty of this is that they use the next larger tap
> to install, so you get to use a standard tap to thread the
> hole. In this application you need three taps- taper, plug,
> and bottoming to get full depth blind hole threads so you can
> screw the repair in, and high strength loctite it in place.
> Check with your local machine shop. Helicoils actually are
> stronger than the stock threaded hole- the force distribution
> is supposed to be better in shear.
>
> Roger should know. He knows everything. Roger?
> -james
>
> > -----Original Message-----
> > From: vwdiesel-bounces at vwfans.com
> [mailto:vwdiesel-bounces at vwfans.com]
> > On Behalf Of Tony and Lillie
> > Sent: Sunday, January 10, 2010 9:17 PM
> > To: Shalyn Shourds; vwdiesel at vwfans.com
> > Subject: Re: [Vwdiesel] A4 engine mounts
> >
> > I dealt with this several times in teh shop, it will also happen to
> > the transmission mount. I can't say that I remember what we
> did to fix
> > them. but I can say I wish I weren't three hours away, I'd be over
> > after work tomorrow..................................:(
> >
> > Tony
> >
> > ----- Original Message -----
> > Subject: [Vwdiesel] A4 engine mounts
> >
> >
> > > Just a bit of hard-won education for the group. It's not
> terribly
> > > difficult to strip out the threads on the passenger side
> "pendulum"
> > > mount on a A4 TDI, which you have to remove to do a
> timing belt. As
> > of
> > > tonight, I can say with relative certainty that a helicoil-style
> > thread
> > > repair insert will not take the necessary torque.
> > >
> > > It's going to be a long long walk to work tomorrow.
> > >
> > _______________________________________________
> > Vwdiesel mailing list
> > Vwdiesel at vwfans.com
> http://www.audifans.com/mailman/listinfo/vwdiesel
>
>
>
> ------------------------------
>
> Message: 4
> Date: Mon, 11 Jan 2010 06:49:56 -0500
> From: "mikitka" <mikitka at embarqmail.com>
> Subject: [Vwdiesel] Heater question
> To: <vwdiesel at vwfans.com>
> Message-ID: <001b01ca92b4$32822900$97867b00$@com>
> Content-Type: text/plain; charset="us-ascii"
>
> Need to ask those that have been into the AC/heater core area
> on an A2 Jetta. I use to have great heat coming out of the
> vents but it has slowly moved to just warm heat now with the
> heat lever moved all the way over to the far right.
>
>
>
> My question is, over the years foam has been blowing out of
> the vents. I understand this to be the foam seal around the
> temp control door, right? If so if all that foam is missing
> could I now be having an issue with the cold mixing with the
> heat and now allowing it to seal off the cold side 100% which
> in turn is causing my heat to be warm instead of hot like it
> use to be?
>
>
>
> The engine is running just as always and the temp gauge is
> the same, running just slightly past half way like it always
> has since I have owned the jetta, which will be over four
> years now and about 80k miles.
>
>
>
> The coolant is or at least it looks nice and clean and I
> replaced the head about 20k miles ago and so the coolant is
> fresh from that point. I didn't specifically flush the heater
> core lines. By this I mean I didn't hook a hose up to the
> heater outlet line and let it flush the coolant out backwards
> through the inlet line to clean out the heater core, if that
> is at all possible or a good thing to do.
>
>
>
> Do I need to flush the heater core or is the missing foam my issue?
>
>
>
> This 91 ECO Jetta now a true TD Jetta has been great and a
> big money saver for me so I want to keep it as long as I can.
> It just turned over 226k miles total on the vehicle but the
> engine has 80k on it since I had it rebuilt shortly after I
> purchased it.
>
>
>
> Thanks,
>
>
>
> Nick
>
>
>
> ------------------------------
>
> Message: 5
> Date: Mon, 11 Jan 2010 12:36:06 EST
> From: lbaird119 at aol.com
> Subject: Re: [Vwdiesel] Heater question
> To: vwdiesel at vwfans.com
> Message-ID: <7e5e.4069788b.387cbb86 at aol.com>
> Content-Type: text/plain; charset="US-ASCII"
>
> In a message dated 1/11/2010 3:50:44 AM Pacific Standard Time,
> mikitka at embarqmail.com writes:
>
> > Do I need to flush the heater core or is the missing foam my issue?
> >
>
> Could be either or both. It's easy to flush out the heater with
> a garden hose. Disconnect both ends flush one way, then the
> other and keep doing it until it's clean and flows well (or replace
> the heater core). The heater core is where the smallest passages
> are so if anything's a filter in the system, it's it.
> The heat mix IS a flapper rather than a coolant valve like on the
> A1 so leaking foam or a misadjusted cable, broken servo can all
> make for a cooler heater. You can put it into recirculate, by
> putting the selector to the biggest snowflake on the A/C controls.
> That would eliminate most cold, fresh air ingress and give you an
> idea if it's the foam. You'd want to unplug your compressor so that
> you're not running the A/C though.
> It's not uncommon for the flapper controllers/servos to break, the
> link come loose or the such. Problably all vacuum controlled. Not
> a lot of fun to pull and foam. Seems like I did while
> leaving the A/C
> box in place but I have to be remembering that wrong.
> Loren
>
>
> ------------------------------
>
> _______________________________________________
> Vwdiesel mailing list
> Vwdiesel at vwfans.com http://www.audifans.com/mailman/listinfo/vwdiesel
>
>
> End of Vwdiesel Digest, Vol 75, Issue 10
> ****************************************
> Internal Virus Database is out of date.
> Checked by AVG - www.avg.com
> Version: 8.5.409 / Virus Database: 270.14.3/2411 - Release
> Date: 10/03/09 06:20:00
>
More information about the Vwdiesel
mailing list