Not so Good Vibrations

[billybobf]

fridays work best for me, I havent assembled YET, but I could get a working one before next friday I think

only problem I see is the SMALL dial I have

[billybobf]

http://www.ebay.com/itm/Haenni-3000-PSI-200-Bar-Liquid-Filled-Gauge-2-5-/330665070573?pt=LH_DefaultDomain_0&hash=item4cfd2c8fed#ht_1180wt_1396  ?

[ORCoaster]

Don't hurry on my account.  I worked on the injectors today and think I may have made a positive difference in things.  A while back I had the #1 injector start clacking real loud for no apparent reason.  I took it apart and cleaned it and things were better, at least it was drivable.  Today I was motoring around and noticed a distinct loud click under the hood at idle.  When I got home and the engine was pretty well warmed up I went down each metal line to see if I could pick out the odd one.  Cracked the nuts on the tops as well.  Just couldn't source it out until I started grabbing the little black hoses between the injectors all felt the same until I got down to the line between #1 and 2.  More vibration there.  Finally put my fingers on the one between the injector and the IP.  What?  feels like a metal line vibrating.  So again tore #1 down and got out the 10X power hand lens.  Looked it over on all surfaces and only noticed there was buildup on the Pintle but it was still in good shape otherwise.  So I cleaned it up, reassembled and a whole bunch of the noise went away.  So I will see if perhaps some of the vibration in the mirror is gone as well.  I can dream can't I?

I have a high pressure gauge but I am not sure it gets to the 200 bar mark.  I was going to use it for a compression tester and only needed 500 PSI.  I can look in the tool box in the afternoon tomorrow. 

Later DAS

[ORCoaster]

Kind of an update here on the vibration issues.  I ran an other tank of Bio Diesel through the system and it sure runs smoother with that stuff.  Must burn slower and not give that hard snap to the piston.  I also noticed on the hard pulls on the hills I need to drop to third and wind it out when running on that fuel.  That causes a  nasty roar to come from someplace underneath.  I was working on the exhaust before and ran into a problem with getting the resonator off.  Well today I took on that task and whooped it's *ss.  I was able to find a couple of places where the pipe and the muffler itself were rubbing on the frame. 

So after I had all the pipes off and cleaned up I started looking at the muffler setup because that is where the black soot was all over the pipe going into the muffler.  Not what it should have been at all.  Seems that the shop that put the new muffler on did that and only that.  The rest of the pipes are originals.  Well like shops do they just took a torch to the old pipe and hacked it off in front of the muffler.  Then when they went to install the new one they didn't have enough pipe to slide inside it.  So they welded those two small slits on the muffler up and just tried to clamp the whole thing on the bit of stub they left after the pipe makes the hook over the rear frame.  I guess in all my driving it worked itself back to the point where there was no weld in the slot and now exhaust was blowing out on the front side of the muffler. 

Because the stub was short they had the muffler turned to the side to keep it from hitting on the rear axle rail.  As it got lose the muffler swung down to rest on the metal frame and may have been a source of that nasty drone and buzz.  I will know next trip I make to the big city.


So it seems that proper alignment of the muffler from toilet bowl to tail pipe may be a source of vibrations in the MK1.  Still not sure if I back off the timing that running on regular diesel will be as good as the Bio D. 

[smutts]

An out of balance alternator rotor gave me a ton of grief once, rebuilt! it was! maybe, but the munters had not rebalanced it. Argh! Kill them all. UP to a specification, not DOWN to a price please.

[ORCoaster]

I think my problem with the vibrations here is related to timing or fuel type.  I am in the process of installing a second fuel system on the car so after it is running I might play with different types to see what kind of noises it makes at 1000 or 2000 RPM.  Just have to pull the hose off the solenoid and have enough quantity in a jug or jar to get it to go through the closed loop system. 

I might throw ATF 100% at it along with some regular diesel and then some juiced diesel with a ton of wax and then the WVO treated or not.  That should smoke up the neighbors all day on Saturday doing it. 

Just some thoughts.  I did put my ear to the alternator with my breaker bar and sounds OK.  Belt wobbles some so balance may still be an issue.