I changed the clear filter today and I don't think it helped much if any. I seem to be getting better gas mileage and even this tank it seems to be a little better. The black smoke isn't so bad anymore. Sometimes it smokes visibly when kicked down at about 45 or so. To be honest, it seems the car has more power in the low end and as it accelerates, the car isn't as powerful, thus my inquiry about boost. I still can't find a boost gauge around town for under $60, so I guess I'll get one of those off ebay.
Thanks
David

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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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If you don't already own one of these, I'd buy this:

http://www.thetoolwarehouse.net/shop/MIT-4050.html

That's what I use for a temporary boost gauge. Just run a few feet of hose from a "T" at the ALDA out the hood seam and through the driver's window. Works great. The dual-converter MityVac lets you pressure test the ALDA and also test all the vacuum systems on the car. The link above has the lowest price I know of for these things.

If one were looking for a gauge purely for diagnostic purposes (not for permanent installation), then one might also consider that some general-purpose industrial gauges can be had fairly inexpensively. MSC Industrial Supply, for example, sells a series of 4-1/2" dial gauges for $22.16 each. This includes versions for vacuum-0-30 PSI, 0-15 PSI, and 0-30 PSI. See the 0-30 PSI version here; there's a link there to the catalog page if one wishes to see the whole series. (Picture shows 0-160 PSI because they only use one representative picture for the whole series.)

These aren't "great" gauges compared to some of the industrial offerings, and probably wouldn't respond well to being drop kicked across the shop, but for hanging inside the car for diagnostics, I would think one would be fine. It's no big deal to buy a hose barb fitting (or some other fitting to suit a given application) that fits the pipe thread on such a gauge, either.

Just a thought...

1984 300d Turbo 140,000
Pressure Test Alda With 0-10psi Fuel Gage 0=10 Psi And 0-30 In Vac Use The Top Pressure Out Of The Hand Vacuum Tester Direct To The Alda May Find Leak In The Small Shaft Sea,l Remove Alda And Take Out The Four Screws May Have To Drill Out, Replace With A Rubber O-ring From A Seal Kit Metic, Test For Leaks.

Diesel Purge Works Good, For Smoke, The TOP Oil Tube For Camshaft Plug Up, Small Holes Remove And Clean, Replace The Camshaft And 4 Tower Bearing, 10 Rocker Arms, 10 Valve Stem Seals, Use A Kit, With Guide Book, Push On Tool, 10 Seals Turbo, Extra Lock Nuts

It probably happened when the new timing chain was installed. If you do everything with the vac system that has been suggested and you still have black smoke; then I would have my IP timing checked and if that is in good order, which I doubt, then I would do a compression check to find out where my head gasket is breached.

BenzDiesel

Look at the date of the thread!

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

I just noticed that when i was reading this 2005!

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Current:
05 E320 CDI
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08 Sprinter
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