Engine Tune-up Sorry Guys,
I was out of town for a few days and will catch up with the progress on my Jeep today. Before I left on vacation, we tore down the gear box and bought new gears, synchronizer rings, seals etc since there was a lot of wear. It was all put back late last week, but don't know how it all worked out! Quote:
Originally Posted by whicked wheels Hi gbanavar Try using the 140 size jet, when we brought the jeep it was fitted with the fiat jet we changed it to 140 and ther was a vast difference in perfomance. | Quote:
Originally Posted by S@~+#0$# Hi Ganesh,
Has the issue been sorted out yet? Like we discussed over phone recently, your spark plugs are showing signs of running a rich mixture. You will also be able to make this out from the smell of the exhaust gases. I think you should use the 125/140 Jet and get your mechanic to adjust the air screw to increase the air flow. I am not sure if this is the only problem though. Could be your ignition coil, timing etc.
Yes, there is a huge difference in performance between the 140 and the 125. I would suggest you use 140 at least for your run-in period. After your run-in, you can go in for 125 jet as it is a reasonable combination of both economy and performance. I am using 140 on my 3B and it literally leaps forward when you tap the throttle. |
Whicked Wheels & Santhosh,
I switched back to the 125 Jet last week before we started work on the gear box and there was a marked difference. The stalling was gone, however, did not get a chance to test it a lot. I will try to find 140 Jet today and test it with both 125 & 140. In fact, I was trying to buy 140 jet last time I went to JC Road, but could not find one.
Arka,
My response in bold-italic below. Thanks! Quote:
Originally Posted by ex670c Hi Ganesh,
After rebuilding the F4134 check the following
1) Oil Pump
2) Oil Pressure
3) If the engine head is receiving engine oil. Arka, did this after the re-build and had to replace the oil pump since there was not much oil pressure. After replacing, the pressure is perfect.
Running In.
After rebuild fill oil to capacity and start the engine and build up rpm to 1500-1800 rpm (idle is 650 for Solex M34PBIC). Is there a way to estimate the RPM since there is no rpm meter on my 3B? Can a rpm meter be fitted and if so, how?
When the radiator warms up to 60degrees, hold the engine rpm and let it run for 15mins.
Idle-Cooling run-in which mechanics suggest does not create enough oil pressure to circulate the oil, resulting in the bore getting scratched.
For the first 1000kms accelerate gradually and keep fluctuating the engine RPM with out stressing the engine (Low speed Hi gear).
wrt to electric pump do not connect it directly to carburettor.
Tank - Electric Fuel Pump-Mechanical Fuel Pump - Carburettor.
This setup prevents the carb from flooding with fuel and resultant mixture running rich. I have the correct setup as mentioned above. I have installed the electric fuel pump on the chassis, below the fuel tank, with a filter before it.
For the Solex I would suggest 127.5 or 140 Main Jet. This came OEM.
A personal suggestion keep the idling around 700-900rpm.
Regards,
Arka
PS - get in touch with JAMMY (MM440) the CJ3B & F4-134 expert. Will do.. thanks for your inputs. |
Last edited by gbanavar : 25th May 2009 at 08:01.
|