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'88 740 Flame Trap location

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Old Jul 21st, 2010, 20:35   #1
'88740GL
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Default '88 740 Flame Trap location

Ever since i bought my volvo (first volvo) oil has seeped from oil filler cap, onto the rocker case and slowly seeped down the engine block, onto the clutch bellhousing and drips onto the floor, not much, but enough for me to be having a dirty oily patch on the drive, i've hear of a flametrap, but under all those hoses, i can't seem to find it, i know it must be there and be blocked as when the engine is running blowby gases come out of the dipstick tube if i remove the dipstick.....any ideas where it is and tips on removing and cleaning it?

thank you!
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Old Jul 21st, 2010, 20:49   #2
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its ment to be under the inlet manifold, have a look here
http://www.volvoclub.org.uk/faq/Engi...tion_Questions
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Old Jul 22nd, 2010, 00:11   #3
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its ment to be under the inlet manifold, have a look here
http://www.volvoclub.org.uk/faq/Engi...tion_Questions

Cheers!

Found it, had to remove the intake bellows to get to it, i'm glad i did, as the fuel control plate was covered in oil, and the throttle body/blade was covered in black crud/soot, i cleaned it all, the flametrap was completely clogged, only to disintergrate upon try to unclog the mesh, so some coarse wire wool, is now acting in its place, cleaned all the associated hoses, put it back, greased the lips of the intake bellow and put it back on, fired her up, took her for a drive, and altered her idle speed! Have to say she's a lot more peppier now! Off like a rocket, and the odd idle when its cold seems to of gone!

Well Chuffed!
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Old Jul 22nd, 2010, 00:13   #4
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congats! back to happy motoring once again
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Old Jul 22nd, 2010, 13:59   #5
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Your as well to just bin the flame trap, if the mesh went but the two halves fit together fine just leave it empty. Check and Removal of the flame trap is a service item on the schedule.
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Old Jul 22nd, 2010, 14:50   #6
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Your as well to just bin the flame trap, if the mesh went but the two halves fit together fine just leave it empty. Check and Removal of the flame trap is a service item on the schedule.
How often would it need a check? the flametrap i mean? i would reove it but i'm scared just incase the flame trap gets a flame and ignites my crankcase oil....

thanks!
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Old Jul 22nd, 2010, 19:41   #7
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Just remove the gauze leaving the inside empty,it wont ignite you'r oil,most people remove the indside filter.
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Old Jul 23rd, 2010, 00:21   #8
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Just remove the gauze leaving the inside empty,it wont ignite you'r oil,most people remove the indside filter.
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Originally Posted by '88740GL View Post
How often would it need a check? the flametrap i mean? i would reove it but i'm scared just incase the flame trap gets a flame and ignites my crankcase oil....

thanks!
you only need to check its been removed the once.
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