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#1
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Here we go again...
This is about flat spot. I had a 1972 AB 1300DB engine with a 31 Pict 3 carb with flat spot. I rebuild it with new 1600 pistons and cylinders. The Heads were open to 1600. Everything is sock inside the case. I have the same distributor 113-905-205AL. This distributor was also used on US on a 1600DP engine with manual transmission as mine. It is a SVDA. I changed the manifold and the carb to a 34 Pict-3 (I don’t know the size of the jets) Do I have an AD engine? I don’t know want type of engine I now have and I would like to have our opinion on this to set the timing. I asked the opinion to a mechanic that worked on the VW dealer here where I live for 30 years and worked on my car for more than 15 years and he knows it very well and he told me that I should set the V notch mark on the case split to avoid a hole on a piston, because I still have a flat spot from the idle. This should be a static set-up. When I told him that I changed the pistons and the carb we told me that now I have to mess with the jets to end with the flat spot. If it is an AD with SVDA the V notch should be set 7º BTDC at 800-900 rmp with stroboscope and then I have to mess with the jets until I end with the flat spot. Is this correct? Any suggestion on the jets sizes? Joao 72 Super 1302 |
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#2
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I have to find the problem... If I have a flat spot with a SVDA it must be because the vacuum can is not working properly. I do believe it is not the original so I order a new one from Bosch. When sucking the ar from it I can feel that the membrane isn’t stressed, because I can hear it, so the vacuum advance will always response with a delay causing the flat spot. Do you think that this make any sense? I can't find the correct Bosch part number of the vacuum can for my distributor in the internet. 113-905-205AL VW 0231-146-101 BOSCH Joao 72 Super 1302 |
#4
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>If you have a pulley with one notch and a dimple on the other rim (to >the left of the notch), the dimple is TDC and the one notch is >7.5BTDC. > This is what I have...and that is why the mechanic I spoke with told me that… He knew that I have that dimple (TDC) on the rim and he smiling when he told me that. I have read you web page a lot of times and I never saw anything relayed with this dimple on the rim. I will check it right now. Thanks very much Joao 72 Super 1302 |
#5
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I’m so hungry with myself. I can’t understand how I could I miss that. After read your post I open the Haynes on page 72 and here it is:"see also that the V notch in the crankshaft puller wheel is clean and visible (...).The notch should line up with the crankcase joint." I do believe that many engines are working at 15º BTDC instead 7.5º BTDC, because many people think that the V notch indicates the TDC. Since Ingles is not my first languish I can easily miss something and this was one of that situations. This was unbelievable... Joao 72 Super 1302 |
#6
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On 20 Mar 2005 14:03:56 -0800, "Joao Eliseu"
> wrote: > >I’m so hungry with myself. *holds up index finger with puzzled/questioning look on face* > I can’t understand how I could I miss that. After read >your post I open the Haynes on page 72 and here it is:"see also that the V notch >in the crankshaft puller wheel is clean and visible (...).The notch should line >up with the crankcase joint." >I do believe that many engines are working at 15º BTDC instead 7.5º BTDC, because >many people think that the V notch indicates the TDC. >Since Ingles is not my first languish I can easily miss something and this was one >of that situations. Usted habla ingles mas bueno que yo habla espanol. :-) >This was unbelievable... > >Joao > >72 Super 1302 --- "There's nothing wrong with a little shooting as long as the right people get shot." - Inspector Harry Callahan |
#7
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Shag wrote:
> On 20 Mar 2005 14:03:56 -0800, "Joao Eliseu" > > wrote: > > >>I’m so hungry with myself. > > > *holds up index finger with puzzled/questioning look on face* > > >>I can’t understand how I could I miss that. After read >>your post I open the Haynes on page 72 and here it is:"see also that the V notch >>in the crankshaft puller wheel is clean and visible (...).The notch should line >>up with the crankcase joint." >>I do believe that many engines are working at 15º BTDC instead 7.5º BTDC, because >>many people think that the V notch indicates the TDC. >>Since Ingles is not my first languish I can easily miss something and this was one >>of that situations. > > > Usted habla ingles mas bueno que yo habla espanol. :-) > > >>This was unbelievable... >> >>Joao >> >>72 Super 1302 > > > > --- > "There's nothing wrong with a little shooting as long as the right people get shot." > - Inspector Harry Callahan You where not the only one darling... J. :O] |
#8
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> >Usted habla ingles mas bueno que yo habla espanol. :-) > Hola Shag, Mira, también entiendo un poquito de Español e Portugues. Saludo Joao Joao 72 Super 1302 |
#9
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Joao Eliseu wrote:
> > > > >Usted habla ingles mas bueno que yo habla espanol. :-) > > > > Hola Shag, > > Mira, también entiendo un poquito de Español e Portugues. > > Saludo > Joao > > Joao > > 72 Super 1302 Ay Carambola I used to date a girl named Mira once. hehe. Jan |
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