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Old 04-05-2018, 02:11 PM
renaissanceman's Avatar
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Join Date: Nov 2014
Location: Central CA
Posts: 808
So since the price diverged from #2 by 20 cents or so, I have used 2 tanks of regular diesel. My rock and roll at idle has essentially disappeared. It started when I first started using HPR now that I think about it...hopefully after I reseal the delivery valves, I'll have no rock and roll with HPR.

The car feels much more peppy on #2 as well. hmmm...

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2005 Volvo S40 T5 AWD, 77k
1998 Saturn SL2, 244k - 35 mpg (gone, never forgotten)
1987 Mercedes-Benz 300D turbodiesel, 4 sp auto, 156k - 28.7 mpg
1993 Tracker 4x4, 2 door, 8v, 3 sp auto. 134k - 25 mpg
1996 Tracker 4x4, 2 door, 16v, 3 sp auto. 110k - 28.6 mpg

WARNING: this post contains thoughts that may be discovered by the state of California to cause cancer.
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Old 04-16-2018, 11:36 AM
Diesel Preferred
Join Date: Oct 2007
Location: Charleston SC
Posts: 2,718
Originally Posted by renaissanceman View Post
I installed new shields when I swapped them, *however* one of the injectors leaked at the half part line, so I took it out and sent it back for a rework. When I installed, I did not replace the heat shield a second time -- it had had about 500-1000 miles on it at that point.

It sounds like I have knock on one cylinder, which fades away to nothing after everything is good and hot (20 min on the freeway). If delivery valves don't solve it, I'll look into the next step. I can't remember which injector had the same heat shield used on two installs, though...
Old thread so this may already be fixed, but heat shields CANNOT* be re-used.

(* They may be re-used if you bend them back to the original shape, but there is a risk that they won't seal or last as long as a new shield. A failed heat shield will probably result in the injector heating up too much and fuel burning / solidifying in the tip of the injector and ruining the spray pattern, resulting in smoking and rough running and poor performance, and ultimately you may have damage to the injectors, the pre-chamber, and to the piston / head, and that gets really expensive.)

See here for a nice couple of pix and more info:

Do I NEED new injector heat shields?
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC
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Old 04-22-2019, 10:49 PM
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Join Date: Aug 2010
Location: Sacramento, CA
Posts: 2,577
Filled up at the Union 76 near my house this morning and found the pumps said 99% bio-diesel. Might be the same as Propel's HPR, since others in this post reported finding that at a Union 76. In Sacramento, those are mostly at Shell stations. Price was $3.89/gal vs $3.85/gal for Propel last Sat (my other car). Price is between regular and mid-grade gasoline, which is currently pricey in CA due to refinery switch-overs. Couldn't find anything about in a google search.
1984 & 1985 CA 300D's
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Old 05-31-2019, 11:44 AM
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Join Date: Oct 2012
Posts: 5,108
If an alternative fuel works our well and is massively available. Hopefully diesel car production could resume.

Alternative fuels supplied by a chain regionally some years back. Where a total disaster in our region. Resulting in the huge number of injection pump failures that occurred.

We were told the base of the product. Was fish oils. If a profitable workable substitute cannot be found for conventional diesel fuel available everywhere. New diesel car engines will not appear. I believe the 100 mile per gallon diesel car is possible today. If people will accept less power.

I never used that regional alternative fuel as it was not available in my local town. It still was a benefit to me though.

A gentleman traversing through our area had his 1984 300d quit on the highway in January. While burning new vegetable oil. The garage he had it flat bedded to had been changing out a lot of bad injection pumps. So they were reasonably biased.

Since the starter had burnt out trying to get it restarted on the highway. Their suggestion on what they thought it needed and the possible cost and delay. Drove him to buy a new car. To continue his trip. Actually I found it just to be the wire between the starter motor and solenoid when I got the starter off the car.

I got the car eventually although the garage owner had to apply to court to get a new ownership for me to transfer. Under two dollars in parts and a couple of hours total at most by me. It was running fine again. So one car I have was a road kill. His vegetable oil had just encouraged a growth in the fuel tanks vent line.

When and if new substitutes appear for conventional diesel fuel. I would probably observe how others have done with them for a year or more. before trying them myself.

Our break could come if they became mandated for use in heavy trucks. Otherwise I just cannot see the investment in refineries to produce low level production.

Also of note. Anything damaging to big oil or even showing the smallest potential to do so. Unless they control it and maintain the same or higher profit levels. I cannot see it being allowed to really evolve. The truck and rail diesel fuel is truly a massive business.

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