Hello everyone... and thank you for your patience....
There are some good news, for which I want to send you all sincere greetings, but a special greeting should go to our "magic" hotater, who has put his bet on "the problem is in the fuel delivery line somewhere", and to emerald, whose notion helped solve the problem...
Thank you all...I've even recieved help through my email from a good "John J" who was passing by our forum reading the discussion...and I recieved support from the nice Mammad of Iran..
Thanks alot good people...
Gentlemen...I cranked, it fired only one compression and stopped...I changed the hard fuel line as is... the damn thing ran just fine...
It is the magic of your experience guys..
Just don't go, coz I am the stickiest pediatrician you'll come by, and because I am very new to the world of diesel engines...
You should listen to this:
When I tried to operate the engine a few hours later it didn't start, but this time even the first firing is gone!!
Lately, in the past few weeks I was having a feeling my engine is short of compression, and this time the loss of compression became so clear that I had to say it is behind the new problem.
It is either fuel or compression..isn't it hotater??
So I started to do things I hadn't reached before; I removed the rocker box and turned the flywheel...
Although English to me is a foreign tongue, but I managed to compose a piece of verse!! it says:
If you listen to the hissin' you've gotta find what you're missin' (can be sang in rap style!!
)
so I listened, and the hissing is from the intake inlet...I put my hand on it, and closed a breather that is connected to it, and turned the crank...WOW!! the machine is sucking my hand,
through a closed valve!!...What valve is this...Gouch Ya!!
I removed the valve block, cleaned the valves and their seats, grained them coarse and fine, installed them, and there is now no hissing or suction through the closed valves, but the compression is still low, although better than what was before the procedure.
To imagine how low the compression is, I want to tell you that I could- with a prayer of my own- manage to start cranking aginst closed valves from zero!! Yea.. you could certainly say why the machine is not firing.
Why there is no compression is something to be further investigated, but before that, I would like to tell you two things...
First, when the valve block was removed I noticed the cylinder lining is grooved- scorched; there were many groves running along the direction of movement of the piston.
Second, is a little story of what might caused "First" above..
Because my engine is in the front yard of an urban-style house having close neighbours all around, I had to attenuate its sound. I enclosed it within a cabin that is fan-ventilated. Because the project is not well studied, because the engine is air cooled, because the fan may be small for the job, and because we had days of hell-hot weather, the engine ran overhot to a complete stop several times during the last month. The last of these grave stops is the one that stopped the engine the last time after which the compression went critically low...
What might happen to a water cooled engine that runs out of cooling water under full load untill it self stops must've happened to my engine, and here is where I need you most...
Tell me of what I should anticipate to find and/or replace... and I welcome all your bitter criticals regarding the cruel torture I did to my poor little indy...
I think what I'll do next is to drain the sump, open a side window, and (listen to the hissin') to see for leaks across the piston rings...
Thank you very much...and you should forgive a newbie for his first mistakes, shouldn't ya
Waiting..
Regards...
Muqdad