Created by: | Orig. Posting Date | User Name | Edit Date |
| Apr 12, 2014 01:22PM | Minimike1 | |
| Apr 11, 2014 07:53PM | dimitris | Edited: Apr 11, 2014 07:55PM |
| Apr 11, 2014 06:49PM | malsal | |
| Apr 11, 2014 03:16PM | mascherk | |
| Apr 11, 2014 02:47PM | bill.rouse | |
| Apr 11, 2014 02:45PM | bill.rouse | |
| Apr 11, 2014 09:33AM | Minimike1 | |
| Apr 11, 2014 08:09AM | Dan Moffet | |
| Apr 11, 2014 05:46AM | malsal | |
| Apr 11, 2014 05:25AM | bill.rouse |
Posted:
Apr 12, 2014
01:22PM
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Total posts: 6909
Last post: Apr 13, 2024 Member since:Feb 26, 1999
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you might also want to check and adjust the valves.
Edited:
Apr 11, 2014
07:55PM
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thin oil is normal as far as the engine is well warmed up! oil viscosity changes with temperature! a leak down testing will give you an in depth condition of the engine! as for the gas smell, also check the engine's breathers!
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Just did a compression test:
Dry:
1 - 147 psi
2 - 150 psi
3 - 155 psi
4 - 145 psi
Wet:
1 - 157 psi
2 - 163 psi
3 - 175 psi
4 - 165 psi
Can someone translate?
They could be a little higher but on a used engine anywhere within 10% of each other is acceptable, i wouldn't be concerned with those figures unless i had other engine/power problems.
If in doubt, flat out. Colin Mc Rae MBE 1968-2007.
Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.
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The compression looks reasonable and the spark plugs don't really sound too bad. A lot of things can cause one plug to be darker than the others. Odds are that the mechanical fuel pump diaphram has cracked. The only other cause I've seen is parking the car for a long period of time on a slope with the nose facing down hill.
Kelley
"If you can afford the car, you can afford the manual..."
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Last post: Nov 15, 2015 Member since:Feb 21, 2012
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Also, spark plugs 1, 2, and 4 looked normal. Spark plug 3 was black.
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Total posts: 19
Last post: Nov 15, 2015 Member since:Feb 21, 2012
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Just did a compression test:
Dry:
1 - 147 psi
2 - 150 psi
3 - 155 psi
4 - 145 psi
Wet:
1 - 157 psi
2 - 163 psi
3 - 175 psi
4 - 165 psi
Can someone translate?
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Total posts: 6909
Last post: Apr 13, 2024 Member since:Feb 26, 1999
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Cars in Garage: 0
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do a compression check. Possibly a ring issue passing fuel into the oil.
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Good advice.
You say the car runs well, so I suspect the pump too. However, if it turns out not to be the fuel pump, the next culprit might be the carb float bowl's inlet valve leaking (bad float or valve). The carb bowl and top of the main jet are lower than top of the fuel tank and if the car is left with a full tank, fuel will drain through the system and down through the cylnders into the engine.
.
"Hang on a minute lads....I've got a great idea."
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I've recently noticed when checking my oil that the oil has a strong petrol smell and is a bit thin. I've heard that the fuel pump diaphragm can fail, causing fuel to leak into the sump. Is there anything I can check to confirm this before ordering a new fuel pump? As a side note, the car seems to be running really well.
The oil level usually rises and oil pressure drops if the fuel pump is an issue. Just replace it they are cheap enough and change the oil at the same time of course. I would not drive it until you have this problem resolved due to possible engine damage.
If in doubt, flat out. Colin Mc Rae MBE 1968-2007.
Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.
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Total posts: 19
Last post: Nov 15, 2015 Member since:Feb 21, 2012
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Cars in Garage: 0
Photos: 0 WorkBench Posts: 0 |
I've recently noticed when checking my oil that the oil has a strong petrol smell and is a bit thin. I've heard that the fuel pump diaphragm can fail, causing fuel to leak into the sump. Is there anything I can check to confirm this before ordering a new fuel pump? As a side note, the car seems to be running really well.
