My hour meter is out of order and I change oil at an estimated time of 20 days; power-off time is approx 5hours/day. Regarding low RPM with AC, that day it was probably NG pressure issue, now my generator is easily handling the AC, Refrigerator and other stuff. Now I am planning to invest another Rs. 500 for Hz meter to have a check on change in RPM when AC compressor starts screwing the generator.
Here is a pic of out-of-order meter, can you please tell me if it just used to display hours or such meters also display Hertz; I may try repairing it if it also has a HZ display.
It cost me Rs. 5,650/- for overhauling; breakup is like:
1- Rs. 3,900 for parts Don't remember exact price of any part except for Head I have mentioned roughly what I remember:
- Complete Head Rs. 1900 including valves, rocker arms, springs and all the stuff installed, you may ask for the one "made in Taiwan" (they'll tell you that you won't need to get the valves grind but you should get them grind because when I opened the head in search of the problem that actually was with HT Coil, I found seepage from both valves and I grind them by myself)
- Tappet Cover I think Rs. 100
- Gain Kit Rs. 150
- Crank Shaft; Cost about 450 or so, I think; (I searched for a Teflon plastic one but couldn't find it for what they call 6500 model gen; if you could find one, there would be much less noise from crank case)
- Rings Rs. 250 or 350 and Piston Rs. 700 perhaps
- Connecting Rod (Don't remember the price at all)
- Silicon Rs. 30
2- 450 for Kharaad
3- 1300 as Labor.
After getting it overhauled, I heard from some one that purchasing Complete Head is not a wise decision because quality of Valves is not so good (Although I haven't found any major issue in it) and I also heard that getting valves from old Japanese car and getting them re-sized is much better.
I believe overhauling your engine by yourself is not that a messy task as it seems, before going to mechanic guy, I started to dismantle the stuff myself, I managed to get the Engine and Turbine out of it's frame and open up the head, but the long nut connecting the Engine and Dynamo was somehow stuck and I couldn't succeed unscrewing it. When I called the mechanic, he took the whole thing to his shop and I didn't had courage to take it back at upper portion where I live. Most of the stuff that agoodfriend did in the overhauling tutorial of may be 3.5 KVA applies to this bigger version as well. I may guide you about how to easily get rid of the frame when dealing with this heavy stuff.
