© Text and Photo: Frode H. Haaland
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© Text and Photo: Frode H. Haaland |
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Renewing fuel lines(Discovery 1990 200tdi) |
| Trying to diagnose why the tdi-engine was low on power, I found too many couplings into to the diesel fuel line. So both supply and return lines were renewed all the way from tank to engine. Even if it didn't give power back, it is a nice repair. |
Removing old fuel lines |
| A T-piece supplying the Ebersprächer heater, the Ebersprächer fuel pump, and an in-line fuel filter, meant there were 13 unneccessary hose clamps on the fuel line. The heater long gone, all this extra unnessecary lines were removed, replacing a full length of supply hose, and also the fuel-return while being at it. |  |
| The fuel lines are all hard plastic, meaning they are impossible to remove by hand - they must be cut off if you need to remove them for access or any kind of renewal. Especially this is a problem at the fuel tank top, were there is probably no way you will be able to remove the fuel pickup on an older vehicle without breaking the soldered on fuel lines running into the pickup. Even if a rubber hose, as fitted here, is not as long lasting as plastic (or copper), they should serve the vehicle well for many years to come. |
Fuel tank to sedimenter |
| While the return line runs a complete length from tank (fuel pickup) to
engine compartment, the supply line runs into fuelsedimenter, and then a
new line from sedimenter to engine compartment.
Nice new hoses and clamps means they can be removed and pickup lifted without destroying anything. I had one length (1 meter) of hose of a different type, and used this from pickup to sedimenter - this makes it easier to find which hose goes where at a later stage/date. |
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Seen here is the new lines running into and out from the fuel sedimenter (seen from below). |
Along the chassis rail to engine compartment |
| As the rubber hoses were thicker than the OEM plastic ones, the fittings on top of the chassis rails were not applicable to hold the new hoses. So they were attached using cable strips. |  |
Engine compartment |
| The supply and return hoses were cut to length and attached using hose
clamps.
Also the small hoses running from pump to filter, and from filter to injection pump, were renewed using smaller lengths of hose. |
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The finished result looks neat, even though the attaching mechanisms does not work with the thick rubber hoses. |
Parts used |
| 1 meter 8mm fuel hose supply to sedimenter
3 meter 8mm fuel hose sedimenter to engine compartment 4 meter 8 mm fuel hose for return engine to tank This gave an excess of around 50cm hose. |