Project Bob78CVCC
- bob78cvcc
- LSD
- Posts: 1632
- Joined: May 2nd, 2008, 9:22 pm
- Province/State: NJ
The drain plug is new.
I took the car out for a brief drive and the fuel pump began clicking like crazy and the car bucked and stalled.
It did this under very little load.
I'm leaning that there must be crud in the tank.
I plan to bypass the tank and feed fuel from an independent source and go for a drive.
Hopefully, this will tell me if it's the tank or something else.
I took the car out for a brief drive and the fuel pump began clicking like crazy and the car bucked and stalled.
It did this under very little load.
I'm leaning that there must be crud in the tank.
I plan to bypass the tank and feed fuel from an independent source and go for a drive.
Hopefully, this will tell me if it's the tank or something else.
78 Civic CVCC
It's just a Civic thing
It's just a Civic thing
- bob78cvcc
- LSD
- Posts: 1632
- Joined: May 2nd, 2008, 9:22 pm
- Province/State: NJ
Hooked up a fuel pressure gauge and an external fuel feed to the fuel pump.
Drive for around an hour under various conditions.
The pressure remained fairly consistent at 2.
Occasionally dropped to 1.5 on hard acceleration.
The pump did its job.
So the question is, what from the pump to the tank is causing the fuel pressure drop?
What should I do next?
Drive for around an hour under various conditions.
The pressure remained fairly consistent at 2.
Occasionally dropped to 1.5 on hard acceleration.
The pump did its job.
So the question is, what from the pump to the tank is causing the fuel pressure drop?
What should I do next?
- Attachments
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- Fuel Pump Test 2 (600 x 450).jpg (58.72 KiB) Viewed 1445 times
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- Fuel Pump Test 1 (600 x 450).jpg (56.49 KiB) Viewed 1445 times
78 Civic CVCC
It's just a Civic thing
It's just a Civic thing
- Jonathan
- LSD
- Posts: 1397
- Joined: May 16th, 2005, 6:56 pm
- Province/State: Butler
- Hometown: ...
- Model: 1979 Hatchback CVCC
Was the filter still in place when you ran the car from the gas can? Any damage to the tank? Possibly the tank got pushed up and there's not enough clearance between the pump pickup and the tank itself? Have you tried running with the gas cap off to be sure the tank isn't building up a vacuum (maybe someone already asked this before, I can't remember at this point)? Could be a collapsed hose somewhere causing problems? Did you use the pressure gauge while driving with the tank hooked up normally?
- bob78cvcc
- LSD
- Posts: 1632
- Joined: May 2nd, 2008, 9:22 pm
- Province/State: NJ
I didn't use the fuel pressure gauge with the tank hooked up normally.
I figured it wasn't worth the bucking and stalling to try to get a reading.
The external gas tank (red can) fed via the fuel filter into the fuel pump.
No damage that I know of to the tank.
There is not much of a difference with the gas cap loose or tight.
I think I need to pull the tank off and figure out my options (clean, repair or replace?).
I figured it wasn't worth the bucking and stalling to try to get a reading.
The external gas tank (red can) fed via the fuel filter into the fuel pump.
No damage that I know of to the tank.
There is not much of a difference with the gas cap loose or tight.
I think I need to pull the tank off and figure out my options (clean, repair or replace?).
78 Civic CVCC
It's just a Civic thing
It's just a Civic thing
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- Short Shifter
- Posts: 82
- Joined: February 8th, 2010, 12:07 pm
- Province/State: Tri Valley-Pleasanton/San Ramon
Hi Bob, I suspect a hose is being pinched. My car ran great with the fuel pump cover off. But I just put the cover on and it moved the hose just enough to starve the motor. To fix this I moved the filter to the engine bay.bob78cvcc wrote:I didn't use the fuel pressure gauge with the tank hooked up normally.
I figured it wasn't worth the bucking and stalling to try to get a reading.
The external gas tank (red can) fed via the fuel filter into the fuel pump.
No damage that I know of to the tank.
There is not much of a difference with the gas cap loose or tight.
I think I need to pull the tank off and figure out my options (clean, repair or replace?).
Also I am not near my service manual is 2 psi normal? Sounds a little bit low to me.
When you por15'ed the tank did you make sure that the feed tube stayed open? When I had my tank boiled I had to return it to them because the feed tube was still clogged up.
A couple of thing's for you to check out!!
thesmogman
If you have to fix it, fix it better than it was!
- bob78cvcc
- LSD
- Posts: 1632
- Joined: May 2nd, 2008, 9:22 pm
- Province/State: NJ
- bob78cvcc
- LSD
- Posts: 1632
- Joined: May 2nd, 2008, 9:22 pm
- Province/State: NJ
Put the old dented gas tank back in the car.
Drove it around for about an hour yesterday.
So far so good.
A lot of work went into making the other tank look nice;
to bad it was a dud on the inside.
Hopefully, Jonathan's part car has a nice tank in good condition.
Drove it around for about an hour yesterday.
So far so good.
A lot of work went into making the other tank look nice;
to bad it was a dud on the inside.
Hopefully, Jonathan's part car has a nice tank in good condition.
- Attachments
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- Fuel Tank Dent 78 CVCC 2 - a.jpg (146.34 KiB) Viewed 1362 times
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- Fuel Tank Dent 78 CVCC 1 - a.jpg (142.14 KiB) Viewed 1362 times
78 Civic CVCC
It's just a Civic thing
It's just a Civic thing
- Jonathan
- LSD
- Posts: 1397
- Joined: May 16th, 2005, 6:56 pm
- Province/State: Butler
- Hometown: ...
- Model: 1979 Hatchback CVCC
- bob78cvcc
- LSD
- Posts: 1632
- Joined: May 2nd, 2008, 9:22 pm
- Province/State: NJ
Re: Bob78CVCC Project
A little update is in order.
The car is awaiting repair at the body shop.
Very lucky to have avoided any structual damage.
Some work will need to be done by the door frame.
The inner wing and such are fine.
All the parts to do the repair are in hand.
Thanks Angel, Tommy and Jonathan for your help.
The car is awaiting repair at the body shop.
Very lucky to have avoided any structual damage.
Some work will need to be done by the door frame.
The inner wing and such are fine.
All the parts to do the repair are in hand.
Thanks Angel, Tommy and Jonathan for your help.
- Attachments
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- Left Fender Damage 1b.jpg (138.76 KiB) Viewed 1315 times
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- Door Frame-Wheel House 1 (522 x 600).jpg (75.71 KiB) Viewed 1315 times
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- Door Frame-Wheel House 2 (596 x 600).jpg (76.2 KiB) Viewed 1315 times
78 Civic CVCC
It's just a Civic thing
It's just a Civic thing