[Vwdiesel] Matt's tach venting time...
Matt
matt_lisa at sprynet.com
Sun Feb 15 20:28:36 PST 2009
Here's the link:
http://www.vwdiesel.net/phpBB/viewtopic.php?t=3741
-Matt
http://matt_lisa.home.sprynet.com/
On Feb 15, 2009, at 8:10 PM, Tony and Lillie wrote:
> Where is this "Cheesman's" writeup on the gas to diesel tach?
>
> Tony
>
> ----- Original Message ----- From: "Matt" <matt_lisa at sprynet.com>
> To: "vw fans" <Vwdiesel at vwfans.com>
> Sent: Sunday, February 15, 2009 5:04 PM
> Subject: Re: [Vwdiesel] Matt's tach venting time...
>
>
>> Yeah, I'm with you about Roger's idea. It's a great idea as long
>> as everything is working. I might try to modify a tach with
>> Cheesman's idea, but digging up all the parts is going to be a
>> challenge. I found a GTI tach housing that wasn't crunched like
>> mine, and it has another tach with it. I might experiment with
>> that one some. I really want a tach in that car, as not having
>> one is just stupid.
>> Well, I got the car running. It looks like the injection pump
>> jumped 2 or 3 teeth. The cam/crank were still on, thankfully. I
>> couldn't get the timing to set accurately, so I locked the cam/
>> crank and found that I couldn't lock the pump. I took the belt
>> off and moved the pump gear forward a bit, and everything lined
>> up. I set the timing to .95 and it fired right up. I'm going to
>> go ahead and get another sensor for now, and just make double sure
>> the belt cover doesn't move.
>> Is there a place where you can get all the rubber bits for the
>> timing belt cover? The rubber surround for the rear bolt
>> vanished, and the side one is getting weak.
>> -Matt (who isn't quite as mad anymore)
>> http://matt_lisa.home.sprynet.com/
>> On Feb 15, 2009, at 2:36 PM, mark shepherd wrote:
>>> How sad.
>>> Strange how the cover would hit the sprocket because of the 6mm
>>> bolt. Are
>>> there not 3 or 4 clips also?
>>> Sounds like at 4000rpm one of you add ons fell off due to the
>>> vibration,
>>> joggled round the timing belt area and went under the belt
>>> suddenly allowing
>>> the belt to jump and mess up your timing. That was the one
>>> weakness of
>>> Roger's great idea. That is why either making a 'W' terminal is
>>> better if
>>> you happen to have a diesel tach, and supplement the terminal with a
>>> directly modded circuit for a gasser tach. [As designed by
>>> Cheesman for a
>>> few bucks equiv.] As long as alt. belt is not slipping, I've
>>> found tach
>>> accurate at all speeds. Belt screeches and you can see revs drop
>>> off...
>>> Can't say that I've run this engine on my Quantum much over 3.5k
>>> B4 I got a tach on my first TDdiesel Q I admit I did on occasion
>>> go over
>>> 105mph. Too many speed cameras over here to get away with it for
>>> long.
>>>
>>> Mark
>>>
>>>
>>> ----- Original Message -----
>>> From: "Matt" <matt_lisa at sprynet.com>
>>> To: "mailing list" <vwdiesel at vwfans.com>
>>> Sent: Sunday, February 15, 2009 8:48 PM
>>> Subject: [Vwdiesel] Matt's tach venting time...
>>>
>>>
>>>>
>>>> This was a message I sent to the list on Thursday, though it
>>>> didn't go
>>>> through since it was down. I've talked to Loren a bit about my
>>>> problem, but I figured more brains on the problem couldn't hurt.
>>>>
>>>> ______________
>>>>
>>>> Hey everyone. So I got my diesel Rabbit tach all set up and
>>>> working
>>>> using Roger Brown's optical pickup wheel design. It was
>>>> beautiful. A
>>>> working rev counter in that old car. Talk about neat.
>>>>
>>>> So I buttoned it all up and took it for a spin. It was working
>>>> perfectly, when all of a sudden, the tach went dead. I wondered
>>>> what
>>>> the hell was going on, so I started to drive home. On the way
>>>> home,
>>>> the car started to buck and kick. Soon, it would barely run. I
>>>> hobbled home, and killed the car. Smoke started pouring out the
>>>> tailpipe. Now I'm really nervous.
>>>>
>>>> I pushed the car in the garage and took stock of the situation.
>>>> The
>>>> front bolt on the timing belt cover had come undone. Because of
>>>> that,
>>>> the cover tipped against the injection pump pulley wheel, taking
>>>> the
>>>> tach optical sensor clean off. That explains why the tach died.
>>>> There was oil all over the outside of the valve cover. I hate
>>>> those
>>>> stupid cork valve cover gaskets.
>>>>
>>>> I'm hoping the sensor didn't go flying down into the lower belt
>>>> cover. Looks like I get to pull it apart and have a looksee. I'm
>>>> still not sure why the car was trying to die. that doesn't make
>>>> much
>>>> sense.
>>>>
>>>> I had the power for the tach converter hooked to the stop
>>>> solenoid. I
>>>> figured the car was bucking because it was coming loose or
>>>> something,
>>>> but when I popped the hood, all was tight.
>>>>
>>>> It's times like these, I just wanna sell the car and make it
>>>> someone
>>>> else's problem. I'll probably just let it sit for awhile, and then
>>>> have a look. What really makes me nervous, is the smoke smelled
>>>> like
>>>> coolant. I've only got 4K miles on this head gasket. I was at
>>>> around
>>>> 4K rpm when the tach stopped working. With my luck, it blew
>>>> something
>>>> big time.
>>>>
>>>> So, anyway, there's my situation. My Rabbit is currently in the
>>>> garage, cooling off. After I cool off, I'll start pulling it apart
>>>> and try to find out what the hell happened. I'll keep everyone
>>>> informed.
>>>>
>>>> A really bummed and pissed off Matt
>>>> http://matt_lisa.home.sprynet.com/
>>>>
>>>> _______________
>>>>
>>>> I tried restarting the car the following day, and it would fire and
>>>> die over and over. It spewed lots of black smoke when it tried.
>>>> So
>>>> far I've checked the timing which seemed off, so I'm in the
>>>> middle of
>>>> trying to get that adjusted (thought it's being more of a pain than
>>>> normal.) Any other ideas?
>>>> _______________________________________________
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>>>>
>>>>
>>>
>>>
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