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#45
by
TylerDurden
on 10 Jan, 2013 19:25
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#46
by
8v-of-fury
on 10 Jan, 2013 19:32
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I timed my 88 1.6 TD to 0.040" and it was WAY too advanced to start cold.. I had to back the pump off like 1/4" in movement to come down to a suitable cold starting setting. I didn't put the gauge back in it, but its much lower than 0.040"
You must be dealing with some extremely worn engines
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#47
by
tyb525
on 10 Jan, 2013 19:34
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Well that would explain why I could hear an increase in clatter to a point, then disappear in higher rpms. Just like without the cold start, only more clatter in the lower rpms.
My cold start doesn't really increase idle speed though, but from what you all are saying, it should. I never heard anyone say that till now though. It never has since I've had the car. But it does "increase the clatter" and definitely helps at startup. So if it doesn't increase the idle, what does that mean?
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#48
by
8v-of-fury
on 10 Jan, 2013 19:36
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You may have a pump without the idle increase part. Is it the Early 80's Rabbit in your picture?? If so, that pump does not have an idle bump on the cold start lever.
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#49
by
tyb525
on 10 Jan, 2013 19:39
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Yep '81 NA. So that would make sense then.
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#50
by
TylerDurden
on 10 Jan, 2013 19:56
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You must be dealing with some extremely worn engines
1991 ECO block & head. Compression was 420psi across the row before I changed the HG a couple weeks ago... haven't done another compression test, yet.
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#51
by
8v-of-fury
on 10 Jan, 2013 19:57
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'Ay but what of the pump and injectors, compression doesn't have 'much' to do with injection.
0.053" is 1.3462mm! that is insanely high lol.
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#52
by
TylerDurden
on 10 Jan, 2013 20:13
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Ja, .053" was a bit much, but it started after 3sec cranking and ran pretty well after warming. Back to .048" and starts easily.
I haven't checked break pressures & IP internal pressure. Just happy it starts easily and runs well.
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#53
by
bbob203
on 11 Jan, 2013 07:40
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so what effect does lower breaking pressute have one egt and on timing?
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#54
by
TylerDurden
on 11 Jan, 2013 08:24
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AIUI, lower break pressure will inject earlier, advancing timing for that injector.
(I have very little info on this engine, I pulled it, slapped a HG on it and stuffed it in to my 85. No pop-tests, no IP pressures. Runs a shade chuggy, but doesn't miss.)
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#55
by
bbob203
on 16 Jan, 2013 07:27
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looking like .045 timing is a touch to advanced for starting my engine below 30 degrees farenheit. On a warm day though it spins right off.
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#56
by
8v-of-fury
on 16 Jan, 2013 09:58
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The TD? or TDI?
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#57
by
bbob203
on 16 Jan, 2013 10:24
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The TD? or TDI?
td. I wish the tdi was going still sitting in a pile in my Garage.
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#58
by
R.O.R-2.0
on 16 Jan, 2013 12:12
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looking like .045 timing is a touch to advanced for starting my engine below 30 degrees farenheit. On a warm day though it spins right off.
WHA?!
TOO MUCH timing to start cold?!
my engine starts great when its cold.. the more timing, the merrier..
isnt it TOO RETARDED of timing that messes shizz up?
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#59
by
bbob203
on 16 Jan, 2013 12:21
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Maybe my compression sucks
