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  1. Solex is more in my wheelhouse but this from a...

    Solex is more in my wheelhouse but this from a triple carb Porsche setup looks fairly comprehensive:

    Adjustment Of Accelerator Pump Squirt Volume

    Remove air cleaners and the intake air horns to...
  2. You should determine if the pump is indeed...

    You should determine if the pump is indeed injecting fuel and if not, determine why. Pump piston, check valves, nozzle, springs, linkage. Itís certainly possible itís not injectors but ďThis can be...
  3. I'm not getting any rebuttal on my argument that...

    I'm not getting any rebuttal on my argument that jet sizes are not the problem but most likely accelerator pumps given the statement:

    "I have a nasty hesitation under load that did not go away...
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    Re: Removing Fuel Gauge - Advice please

    I don't believe that's the issue. If there is an open contact in the tank sending unit or the wire to it is broken (infinite resistance), the fuel gauge will go to full. If there is a short to...
  5. Re: Adjusting Linkages to Idle stop verse WOT stop

    Wouldn’t hesitation from jetting occur mostly during transition from idle to main jets so in a limited rpm/load range but injection pump issues would occur across the entire spectrum except perhaps...
  6. Re: Adjusting Linkages to Idle stop verse WOT stop

    In my experience the most common cause of hesitation or even complete stalling is accelerator pumps not injecting immediately on pedal movement or from insufficient quantity. Poorly synchronized...
  7. Thread: Window gap

    by wpuryear
    Replies
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    209

    Re: Window gap

    Checked my spare door. The gap is definitely not uniform with the middle being about 5 mm wider.

    Walt
  8. Thread: brakes

    by wpuryear
    Replies
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    1,247

    Finally got my brakes squared away. The problem...

    Finally got my brakes squared away. The problem turned out to be in both the booster being a bit gummed up and the master cylinder leaking past the seal.

    The booster makes a little more sense to...
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    To obtain a good seal on the head, measure the...

    To obtain a good seal on the head, measure the difference in height of the intake and exhaust manifolds at each stud then customize a step washer for each location. The difference in height can vary...
  10. Re: Rear engine mount bolt spinning freely - nut broke loose from rubber.

    Here you go. I find the shop manual indispensable for making adjustments or repairs to the 190sl.

    Walt
  11. Thread: Manuals

    by wpuryear
    Replies
    4
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    208

    Re: Manuals

    Prices asked on eBay are very high but if you look at sold listings, they are more down to earth. I would not call the 190sl manuals rare but ones in good condition are are not common. I can’t...
  12. Re: Rear engine mount bolt spinning freely - nut broke loose from rubber.

    186 990 16 40. You should refer to the shop manual concerning the necessity of installation.

    Walt
  13. Thread: brakes

    by wpuryear
    Replies
    39
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    1,247

    Re: brakes

    This is taking much longer than anticipated. After rebuilding the brake booster I had a vacuum leak that took much to long to find and correct. Then after installation in the car the booster would...
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    Re: Any Poppet Valve removal advice?

    Rather than trying to plate aluminum a better method might be to have the parts anodized to whatever color you want.

    Walt
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    Re: Help with engine ID.

    The 121.924 is from a 190C sedan.

    Walt
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    Re: Club alternator issue

    I think what is occurring is that your second light goes from the terminal block to the lamp to ground but the dash light goes from the terminal block to the dash light to the positive battery...
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    Re: Club alternator issue

    Steve,

    The light should be out with the engine running. At which “terminal block” are you checking voltage? Also, are you sure you haven’t wired the two lights in series rather than parallel?
    ...
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    Perhaps this will help - Walt

    Perhaps this will help - Walt
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    Re: Any Poppet Valve removal advice?

    Itís just that I have never seen anything other than natural aluminum on a 190sl. Iím always open to being proven wrong.

    Really appreciate the work youíre doing on providing a replacement part. ...
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    Re: Any Poppet Valve removal advice?

    Wally,

    I would debate that the original coloring was natural aluminum.

    Walt
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    Re: Rear axles are out...

    Could you have possibly mixed the left and right axle shafts? The left side is longer.

    Walt
  22. Thread: brakes

    by wpuryear
    Replies
    39
    Views
    1,247

    Re: brakes

    My thoughts also.

    Walt
  23. Thread: brakes

    by wpuryear
    Replies
    39
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    1,247

    Tom, Yes, 23 inches vacuum less any loss...

    Tom,

    Yes, 23 inches vacuum less any loss across the check valve. For the rear (high) side of the piston I did not use the rear port but the more convenient one on the front as the photo below. ...
  24. Thread: brakes

    by wpuryear
    Replies
    39
    Views
    1,247

    Re: brakes

    Yes, vacuum is the same on both sides in a static condition. As pedal pressure is applied, atmospheric air is admitted to one side producing an increasing differential proportional to the master...
  25. Thread: brakes

    by wpuryear
    Replies
    39
    Views
    1,247

    Re: brakes

    Tom,

    I have 500 to 550 psi with no vacuum measured at the slave cylinder output. The vacuum readings are taken at the test port for the high side and tee’d into the vacuum pipe near the battery...
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