All questions for CJ 3B

docfreak · 25th March 2010, 18:40

electronic pump , only as back up, never been used. never faced any of the problems you mention, as yet

harjeev · 25th March 2010, 20:14

Sharat
what is the position of the electric pump.

TANK ---->ELEC FUEL PUMP ---->MECH FUEL PUMP ---->CARB or

TANK ---->MECH FUEL PUMP ---->ELEC FUEL PUMP ---->CARB

Please advise as the summer are already around the corner the mechanical pump issue will start cropping up

SPIKE ARRESTOR · 25th March 2010, 21:43

harjeev please refer the post by BD on installation of fuel system for CJ3Bs, this gives a comprehensive step by step procedure of what needs to be done.
http://www.team-bhp.com/forum/4x4-ve...rricane-5.html

Spike

docfreak · 29th March 2010, 17:33

hi harjeev, as mentioned by spike follow the link given , i too have posted my assembly, as it is in my jeep.

today i ran out of fuel while driving , as i did not expect it , i cranked the engine a few long times, then got down and saw that thefuel was flowing into the engine , carted some fuel on foot from the petrol pump, then to my horror saw that the engine was not catching up inspite of 4 litres of fuel. spoke to my mechanic and learnt the trick: put some fuel in the carb after taking off the air connection and then voila it was up and about .
i felt that air lock was a problem associated with diesel engines only , so what was this issue?

docfreak · 29th March 2010, 17:43

partial review ; 500 km post engine rebuild:

kms done: 500kms
average runs of 20 kms in city traffic in morning and noon
fuel effficency : 8.2kmpl
engine oil consumed: almost nil
water consumed: 2.5 litres
max speed done: 45kmph
4*4 not engaged at all

problems :1. some oil leaking from near the oil pump, some oil near the 1st spark plug, god knows how and why its there? i dont think it can be a leak..

not from the spark plug.

2. gear box seems to be playing up , makes the sick scratching sound while engaging the 1st

3. oil pressure gauge reads 3-4 initially, then when the engine warms up it comes down to 1-2. is it normal?

4. temperature guage seems overworked , shows 100 in a few minutes and then sticks there, seems 100 is the 80 for the jeep. reset.

overall: flying on the top of the world , with plans to take my baby out to ladakh this summer

DHABHAR.BEHRAM · 30th March 2010, 08:50

Dear Doc Sharath - I read your PM. Then I read all the 7 pages. My reply is as follows.

Fuel percolation (post 94) - I have given phase 1 of corrective action in Jaggu's Jeep thread. Just do as indicated, your vehicle will work properly.

Oil leakage from the engine - it could be as small as the technician not applying the correct torque to fasteners, or it could also mean that the PCV (positive crankcase ventilation system) is not vented somewhere. Please post detailed photographs. I will analyse and reply.

First gear crash - First gear is not syncromesh.

Oil pressure drop with rise in temperature - incorrect specification of oil, incorrect setting of oil pressure relief valve, incorrect engine lubrication system clearances.

Overindication of temperature - do you get major water / coolant loss (radiator top tank empty) or is the guage overindicating? Cross check by DOE method (design of experiments), you can get to the root cause in no time. I presume that all engine parameters are set as mentioned in the workshop manual. If not, please reset. If yes, please recheck and confirm.

Best regards,

Behram Dhabhar

Jaggu · 30th March 2010, 14:55

Quote:

Originally Posted by DHABHAR.BEHRAM

Oil pressure drop with rise in temperature - incorrect specification of oil, incorrect setting of oil pressure relief valve, incorrect engine lubrication system clearances.

Behramji how to sort this issue? Which spec is ideal for our indian climate? How do we set the oil pressure relief valve?

Same issue is there in my vehicle, and i remember DKG mentioning the same.

docfreak · 30th March 2010, 18:32

just back from the workshop, the mechanic tells me that the manual mentions that the pressure should be above 1.5 when the engine is warmed up , so no problem here. is that true?

the clutch was adjusted , so was the rpm.

the engine oil leak was from the tapet cover which has been tightened.

he mentioned that usually the oil pump has a "patti" , at the end, placed a little off the centre, as is the case with the distributor, but mysetup has both the things having the "patti" in the centre, could anyone elaborate? and so sourcing a new oil pump for my matching distributor would be difficult

waiting for decoding of the info given above

docfreak · 1st April 2010, 17:19

uploading some pictures
1. the engine bay
2. the mechanical fuel pump
3. the oil pump which is supposedly of some rare type as described in the previous post
4. the distributor, which matches to my oil pump
4. the new addition: of the air breathing pipe on my rear differential

Jaggu · 1st April 2010, 19:03

Isn't that the oil filter assembly? and the distributor seems to be the lucas ones?

docfreak · 1st April 2010, 22:03

you are spot on , its lucas , but has a small difference which i have outlined in the previous post , which i am not sure is actually true?

docfreak · 4th April 2010, 06:37

now that the engine is done well, i am planning some mods for the purpose of decreasing the gear box hum , increase top speed , making the ride smooth and increasing usable space.
for these what i have in mind are :
diff ratio change, any suggestions as to what should be the ratio to optimize the on road and off road capability with a cruising speed of approx 70 kmph
getting composite fibre leaf springs, anyone knows where i could source them in the ncr and what would be the approx cost
also planning to put a gear lock , to improve the safety and decrease the anxiety when ever i park it away from home.
has anyone put seat belts in their jeep , if so please could you post some pictures of the same.

Jaggu · 6th April 2010, 10:08

For seat belts, add a roll cage and attach the belt on the bar. I think Samurai and GTO has this set up.

Ok i need some info doc, what is the radiator hose thats used? The top one?

harjeev · 7th April 2010, 09:19

Quote:

Originally Posted by Jaggu

Ok i need some info doc, what is the radiator hose thats used? The top one?

Jaggu
Thats a Metlife, methose or something (I hope that i have the name correct). They are extremely resistant to heat, very durable and do not wear off quite easily. I have the same in my vehicle, atleast the top one and the bottom one is the usual local make that we see normally, though I have a standby(metlife) and will use it when the time comes to change the bottom one.

docfreak · 7th April 2010, 18:24

spot on harjeev. these hoses are damm good
conccerning security of our jeeps? ideas?
the scorpio type gear lock is what i am considering any suggestions?

25th March 2010, 18:40	#91
docfreak BHPian Join Date: Sep 2008 Location: NOIDA Posts: 252 Thanked: 8 Times	electronic pump , only as back up, never been used. never faced any of the problems you mention, as yet
	() Thanks

25th March 2010, 20:14	#92
harjeev Senior - BHPian Join Date: May 2006 Location: New Delhi Posts: 1,899 Thanked: 292 Times View My Garage	Sharat what is the position of the electric pump. TANK ---->ELEC FUEL PUMP ---->MECH FUEL PUMP ---->CARB or TANK ---->MECH FUEL PUMP ---->ELEC FUEL PUMP ---->CARB Please advise as the summer are already around the corner the mechanical pump issue will start cropping up
	() Thanks

25th March 2010, 21:43	#93
SPIKE ARRESTOR Senior - BHPian Join Date: Nov 2009 Location: Germany Posts: 2,854 Thanked: 1,532 Times	harjeev please refer the post by BD on installation of fuel system for CJ3Bs, this gives a comprehensive step by step procedure of what needs to be done. http://www.team-bhp.com/forum/4x4-ve...rricane-5.html Spike
	() Thanks

29th March 2010, 17:33	#94
docfreak BHPian Join Date: Sep 2008 Location: NOIDA Posts: 252 Thanked: 8 Times	hi harjeev, as mentioned by spike follow the link given , i too have posted my assembly, as it is in my jeep. today i ran out of fuel while driving , as i did not expect it , i cranked the engine a few long times, then got down and saw that thefuel was flowing into the engine , carted some fuel on foot from the petrol pump, then to my horror saw that the engine was not catching up inspite of 4 litres of fuel. spoke to my mechanic and learnt the trick: put some fuel in the carb after taking off the air connection and then voila it was up and about . i felt that air lock was a problem associated with diesel engines only , so what was this issue?
	() Thanks

29th March 2010, 17:43	#95
docfreak BHPian Join Date: Sep 2008 Location: NOIDA Posts: 252 Thanked: 8 Times	review ; 500km after engine rebuild partial review ; 500 km post engine rebuild: kms done: 500kms average runs of 20 kms in city traffic in morning and noon fuel effficency : 8.2kmpl engine oil consumed: almost nil water consumed: 2.5 litres max speed done: 45kmph 44 not engaged at all problems :1. some oil leaking from near the oil pump, some oil near the 1st spark plug, god knows how and why its there? i dont think it can be a leak..not from the spark plug. 2. gear box seems to be playing up , makes the sick scratching sound while engaging the 1st 3. oil pressure gauge reads 3-4 initially, then when the engine warms up it comes down to 1-2. is it normal?* 4. temperature guage seems overworked , shows 100 in a few minutes and then sticks there, seems 100 is the 80 for the jeep. reset. overall: flying on the top of the world , with plans to take my baby out to ladakh this summer
	() Thanks

30th March 2010, 08:50	#96
DHABHAR.BEHRAM Distinguished - BHPian Join Date: Jul 2007 Location: MUMBAI Posts: 3,060 Thanked: 5,351 Times	Dear Doc Sharath - I read your PM. Then I read all the 7 pages. My reply is as follows. Fuel percolation (post 94) - I have given phase 1 of corrective action in Jaggu's Jeep thread. Just do as indicated, your vehicle will work properly. Oil leakage from the engine - it could be as small as the technician not applying the correct torque to fasteners, or it could also mean that the PCV (positive crankcase ventilation system) is not vented somewhere. Please post detailed photographs. I will analyse and reply. First gear crash - First gear is not syncromesh. Oil pressure drop with rise in temperature - incorrect specification of oil, incorrect setting of oil pressure relief valve, incorrect engine lubrication system clearances. Overindication of temperature - do you get major water / coolant loss (radiator top tank empty) or is the guage overindicating? Cross check by DOE method (design of experiments), you can get to the root cause in no time. I presume that all engine parameters are set as mentioned in the workshop manual. If not, please reset. If yes, please recheck and confirm. Best regards, Behram Dhabhar
	() Thanks

30th March 2010, 18:32	#98
docfreak BHPian Join Date: Sep 2008 Location: NOIDA Posts: 252 Thanked: 8 Times	just back from the workshop, the mechanic tells me that the manual mentions that the pressure should be above 1.5 when the engine is warmed up , so no problem here. is that true? the clutch was adjusted , so was the rpm. the engine oil leak was from the tapet cover which has been tightened. he mentioned that usually the oil pump has a "patti" , at the end, placed a little off the centre, as is the case with the distributor, but mysetup has both the things having the "patti" in the centre, could anyone elaborate? and so sourcing a new oil pump for my matching distributor would be difficult waiting for decoding of the info given above
	() Thanks

1st April 2010, 17:19	#99
docfreak BHPian Join Date: Sep 2008 Location: NOIDA Posts: 252 Thanked: 8 Times	engine pictures uploading some pictures 1. the engine bay 2. the mechanical fuel pump 3. the oil pump which is supposedly of some rare type as described in the previous post 4. the distributor, which matches to my oil pump 4. the new addition: of the air breathing pipe on my rear differential Attached Thumbnails
	() Thanks

1st April 2010, 19:03	#100
Jaggu Team-BHP Support Join Date: May 2004 Location: Bangalore Posts: 20,212 Thanked: 15,890 Times	Isn't that the oil filter assembly? and the distributor seems to be the lucas ones?
	() Thanks

1st April 2010, 22:03	#101
docfreak BHPian Join Date: Sep 2008 Location: NOIDA Posts: 252 Thanked: 8 Times	you are spot on , its lucas , but has a small difference which i have outlined in the previous post , which i am not sure is actually true?
	() Thanks

4th April 2010, 06:37	#102
docfreak BHPian Join Date: Sep 2008 Location: NOIDA Posts: 252 Thanked: 8 Times	now that the engine is done well, i am planning some mods for the purpose of decreasing the gear box hum , increase top speed , making the ride smooth and increasing usable space. for these what i have in mind are : diff ratio change, any suggestions as to what should be the ratio to optimize the on road and off road capability with a cruising speed of approx 70 kmph getting composite fibre leaf springs, anyone knows where i could source them in the ncr and what would be the approx cost also planning to put a gear lock , to improve the safety and decrease the anxiety when ever i park it away from home. has anyone put seat belts in their jeep , if so please could you post some pictures of the same.
	() Thanks

6th April 2010, 10:08	#103
Jaggu Team-BHP Support Join Date: May 2004 Location: Bangalore Posts: 20,212 Thanked: 15,890 Times	For seat belts, add a roll cage and attach the belt on the bar. I think Samurai and GTO has this set up. Ok i need some info doc, what is the radiator hose thats used? The top one?
	() Thanks

7th April 2010, 18:24	#105
docfreak BHPian Join Date: Sep 2008 Location: NOIDA Posts: 252 Thanked: 8 Times	spot on harjeev. these hoses are damm good conccerning security of our jeeps? ideas? the scorpio type gear lock is what i am considering any suggestions?
	() Thanks

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