Another Tale of Terrano Starting Woes - Page 3

nimbinbid · 13-04-2022, 09:24

Thanks for that information.

Today was a wipe out. Rained all day so I thought it best to leave the pump sealed. Tomorrow I've organized a ride into town to stock up on supplies. After that it's up to the weather as the car is sitting in my drive.

If this unit proves defective how easy might it be find a replacement? None on aussie eBay. Roy

solarman216 · 13-04-2022, 11:27

I have the one in my picture, it came out of a fly by wire 2.7 and is no good to me as I have a Patrol and although they look the same the orifices and spring pressure are different, Rick

nimbinbid · 13-04-2022, 13:58

Good to know, mine's a 2.7 tdi, with Bosch pump.

nimbinbid · 14-04-2022, 10:09

First up, it's a Bosch MAF. Does that mean IP and injectors are also Bosch?

Poked screwdriver in hole, piston moved freely but didn't attempt to fully compress spring. Removed the spring retaining clip with long nose pliers. Considering the force involved, it doesn't seem likely to have moved on its own, all of a sudden. Spring and spacer fell out easily. Inspected bore with illuminated magnify glass. No scoring that I can see. Inspected spacer and spring. Spacer fine, spring is a bit shiny right at top where it's flattened. Still, couldn't see any scoring though.

O-rings seem fine. Is it worth replacing them as a matter of course? Don't suppose there's a convenient kit available? Assuming it's good to go, what's the best way to get that retaining ring back in place and flush? Don't want to deform it. Must be a right pain to pull out with a hook and not scratch the bore.

Looks like the water p is beginning to weep. Think I'd like to be sure she's still a runner before I get on to that. Roy

solarman216 · 14-04-2022, 11:23

Yes it will be a Bosch pump, sounds like your valve is just fine, just reassemble it the spring ring pushes in easy with a pair of grips, a G cramp or a small vice, just make sure it is flush, now you need to check the return orifice is clear, it is around 0.03mm in diameter, Rick

nimbinbid · 14-04-2022, 13:19

Return orifice? Where might that beauty be located?

0.03mm, will I even be able to see it? Roy

nimbinbid · 14-04-2022, 14:35

Ok, think I've worked out what to do. Will a stream of fuel emerge if I just turn the motor over or does it have to be running?

Guess I'll see. Roy

solarman216 · 14-04-2022, 19:25

You should see a fine stream of fuel by just operating the primmer button on the fuel filter, Rick

nimbinbid · 15-04-2022, 11:34

Only managed to assemble valve, reinsert and tighten today. Weather predicted to improve over the weekend, hope to make more progress.

If return valve is good is there anything else in that area to test? If not, I'm keen to reassemble everything and try running the truck again on the off chance that the offending issue has been rectified. Roy

solarman216 · 15-04-2022, 22:04

If the return valve orifice is good then as you say give it a run you may just have inadvertently solved the problem, Rick

nimbinbid · 16-04-2022, 10:06

This is the return valve (I hope), minus the fuel return junction and three copper washers.

nimbinbid · 16-04-2022, 10:40

Here's a view looking inside components.

Tried cleaning inside of cap nut (the thing on the right side of last photo) with air gun. Some crud remains, perhaps a soak in injector cleaner might help. The bolt has what appears to be a spacer from the last valve except this one shows no sign of wanting to move. Something can be heard sliding back and forth inside bolt.

Put bolt back in IP, leaving smallest orifice exposed. Pumped primer. Fuel exited around bolt thread but none from orifice. Can recheck with helper tomorrow in case my view wasn't all it could have been.

Not looking good so far. Any quick fixes available for these units? Roy

solarman216 · 16-04-2022, 11:40

Mmmmm not seen one like that before, but I would suggest that the shorter part is screwed into the pump with a copper washer then the banjo with washer each side then the cap nut, if you operate the primer pump before the banjo is fitted you should see fuel jet from the orifice, thus proving this is the correct way to fit it, Rick

nimbinbid · 16-04-2022, 12:03

Good point, chasing down dropped copper washers may well have distracted my reinstallation attempt. Thx. Back to it tomorrow then. Roy

nimbinbid · 17-04-2022, 09:18

Valve checks out fine. Pump primer and fuel comes out. Due to reach limitations, I couldn't observe while pumping at max power.

Satisfied with quantity of fuel emerging from orifice. I then removed the bolt, thinking I'd compare bolt against spanner size, as my fancy ratcheting ring spanner wouldn't grip. Naturally, the first copper washer slid off said bolt into the motor's twilight regions and I've been searching for it ever since.

Hmmm, not too many mozzie bites and no leeches, could have been worse I guess.

Carry on tomorrow. Roy

13-04-2022, 11:27	#32
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,428	I have the one in my picture, it came out of a fly by wire 2.7 and is no good to me as I have a Patrol and although they look the same the orifices and spring pressure are different, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

14-04-2022, 11:23	#35
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,428	Yes it will be a Bosch pump, sounds like your valve is just fine, just reassemble it the spring ring pushes in easy with a pair of grips, a G cramp or a small vice, just make sure it is flush, now you need to check the return orifice is clear, it is around 0.03mm in diameter, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

14-04-2022, 19:25	#38
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,428	You should see a fine stream of fuel by just operating the primmer button on the fuel filter, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

15-04-2022, 22:04	#40
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,428	If the return valve orifice is good then as you say give it a run you may just have inadvertently solved the problem, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

16-04-2022, 11:40	#43
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,428	Mmmmm not seen one like that before, but I would suggest that the shorter part is screwed into the pump with a copper washer then the banjo with washer each side then the cap nut, if you operate the primer pump before the banjo is fitted you should see fuel jet from the orifice, thus proving this is the correct way to fit it, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

13-04-2022, 09:24	#31
nimbinbid Member Join Date: Apr 2011 Location: Australia, NSW Vehicle: 1999 Terrano II TDI 2.7 Posts: 52	Thanks for that information. Today was a wipe out. Rained all day so I thought it best to leave the pump sealed. Tomorrow I've organized a ride into town to stock up on supplies. After that it's up to the weather as the car is sitting in my drive. If this unit proves defective how easy might it be find a replacement? None on aussie eBay. Roy

13-04-2022, 13:58	#33
nimbinbid Member Join Date: Apr 2011 Location: Australia, NSW Vehicle: 1999 Terrano II TDI 2.7 Posts: 52	Good to know, mine's a 2.7 tdi, with Bosch pump.

14-04-2022, 10:09	#34
nimbinbid Member Join Date: Apr 2011 Location: Australia, NSW Vehicle: 1999 Terrano II TDI 2.7 Posts: 52	First up, it's a Bosch MAF. Does that mean IP and injectors are also Bosch? Poked screwdriver in hole, piston moved freely but didn't attempt to fully compress spring. Removed the spring retaining clip with long nose pliers. Considering the force involved, it doesn't seem likely to have moved on its own, all of a sudden. Spring and spacer fell out easily. Inspected bore with illuminated magnify glass. No scoring that I can see. Inspected spacer and spring. Spacer fine, spring is a bit shiny right at top where it's flattened. Still, couldn't see any scoring though. O-rings seem fine. Is it worth replacing them as a matter of course? Don't suppose there's a convenient kit available? Assuming it's good to go, what's the best way to get that retaining ring back in place and flush? Don't want to deform it. Must be a right pain to pull out with a hook and not scratch the bore. Looks like the water p is beginning to weep. Think I'd like to be sure she's still a runner before I get on to that. Roy

14-04-2022, 13:19	#36
nimbinbid Member Join Date: Apr 2011 Location: Australia, NSW Vehicle: 1999 Terrano II TDI 2.7 Posts: 52	Return orifice? Where might that beauty be located? 0.03mm, will I even be able to see it? Roy

14-04-2022, 14:35	#37
nimbinbid Member Join Date: Apr 2011 Location: Australia, NSW Vehicle: 1999 Terrano II TDI 2.7 Posts: 52	Ok, think I've worked out what to do. Will a stream of fuel emerge if I just turn the motor over or does it have to be running? Guess I'll see. Roy

15-04-2022, 11:34	#39
nimbinbid Member Join Date: Apr 2011 Location: Australia, NSW Vehicle: 1999 Terrano II TDI 2.7 Posts: 52	Only managed to assemble valve, reinsert and tighten today. Weather predicted to improve over the weekend, hope to make more progress. If return valve is good is there anything else in that area to test? If not, I'm keen to reassemble everything and try running the truck again on the off chance that the offending issue has been rectified. Roy

16-04-2022, 12:03	#44
nimbinbid Member Join Date: Apr 2011 Location: Australia, NSW Vehicle: 1999 Terrano II TDI 2.7 Posts: 52	Good point, chasing down dropped copper washers may well have distracted my reinstallation attempt. Thx. Back to it tomorrow then. Roy

17-04-2022, 09:18	#45
nimbinbid Member Join Date: Apr 2011 Location: Australia, NSW Vehicle: 1999 Terrano II TDI 2.7 Posts: 52	Valve checks out fine. Pump primer and fuel comes out. Due to reach limitations, I couldn't observe while pumping at max power. Satisfied with quantity of fuel emerging from orifice. I then removed the bolt, thinking I'd compare bolt against spanner size, as my fancy ratcheting ring spanner wouldn't grip. Naturally, the first copper washer slid off said bolt into the motor's twilight regions and I've been searching for it ever since. Hmmm, not too many mozzie bites and no leeches, could have been worse I guess. Carry on tomorrow. Roy