m20 into m40
Moderator: martauto
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FMH
- E30 Zone Addict

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which fuel pipes do i connect, am i right thinking the tanks in m40 cabs have 2 inlets or outlets?
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jmc330i
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Do you mean the fuel pipes that run up into the engine bay?
You should have 3 pipes that appear by the nearside chassis rail - 1 feed, 1 return and 1 breather. You only need to connect the feed and return, the breather (from the tank) just gets tucked into the nearside suspension turret to vent to air.
You should have 3 pipes that appear by the nearside chassis rail - 1 feed, 1 return and 1 breather. You only need to connect the feed and return, the breather (from the tank) just gets tucked into the nearside suspension turret to vent to air.
James
'91 325i Sport
'93 318i touring 16v
'91 325i Sport
'93 318i touring 16v
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Brianmoooore
- E30 Zone Team Member

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An M20 will run quite happily with the 'wrong' fuel tank. No need to touch the back end at all.
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jmc330i
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Whats the wrong fuel tank?Brianmoooore wrote:An M20 will run quite happily with the 'wrong' fuel tank.
James
'91 325i Sport
'93 318i touring 16v
'91 325i Sport
'93 318i touring 16v
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Brianmoooore
- E30 Zone Team Member

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- Joined: Mon Jan 10, 2005 11:00 pm
55 litre one, in the case of a 4 to 6 pot saloon conversion.
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jmc330i
- Engaged to the E30 Zone

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- Joined: Mon Jan 10, 2005 11:00 pm
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Ah, got it. My M40 to M20 was on my touring.
James
'91 325i Sport
'93 318i touring 16v
'91 325i Sport
'93 318i touring 16v
