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Thread: 1981 mercury 225 bleed lines
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02-25-2022, 12:09 PM #1
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1981 mercury 225 bleed lines
Does anyone have good pictures or a better drawing of bleed line routing on a 1981 mercry 225 than the mercury manual. Thanks in advance.
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02-25-2022, 03:03 PM #2
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02-25-2022, 08:57 PM #3
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02-26-2022, 06:54 AM #4
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Do a search here. Chris Carson just answered this question within the past month.
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02-26-2022, 12:27 PM #5
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03-06-2022, 12:01 PM #6
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Thanks guys but those are all different. The closest thing I can find is this https://www.screamandfly.com/showthr...lse-pump-setup
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03-06-2022, 12:22 PM #7
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This is my mercury book picture as well
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03-06-2022, 03:13 PM #8
think he's got a total of 12 bleed bids (not countin' tha "oiler" bibs) on tha front of tha motor?. ya gotta use 6 T's".. this was used outta hi perf.. called one on those "special names" like formula or something?.. don't remember for sure?.. if ya look at tha ones posted (dia.)and look long n hard at what ya got you should be able ta figure it out.. tryin' ta put inta words would only get ya more confused i think.. GL.
Last edited by tlwjkw; 03-06-2022 at 03:32 PM.
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03-06-2022, 03:37 PM #9
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03-07-2022, 04:57 AM #10
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07-30-2022, 11:09 AM #11
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FYI, I have my 1985 2.4L engine disassembled (original, no apparent previous disassembly). My bypass routing is slightly different. There is not a fitting on cylinder #3, only 1, 5, 2, 4,& 6. There is also not a fitting for a bypass hose between upper and lower bearings. Inspection of the front block half reveals lube holes in the bearing surfaces leading to a channel on the Reed side of the reed block. I have mapped the hose routing on my engine which does not perfectly match any manual I can find (see diagram). This is a vertical reed engine. Provided in case someone is looking at a similar engine.
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07-30-2022, 02:11 PM #12
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G'day Bill

That looks like a vertical reed setup like on my 2.0l (the one with two tired cylinders). And thus it looks like a 5-line bleed setup too. Also like the one on my 2.0l.
(For some reason, I thought all 2.4's were horizontal reed setups.)
-Peter"padded wonder"
__________
the wet:
18’ Bahner bow rider, 2.4/200
Hydrostream Viper, 140 v4 crossflow, some Raker props
16' Baja/Tahiti/Sidewinder clone, 135 v4 crossflow
17' boston whaler alert, 90 merc fourstroke
13' boston whaler, 40hp yamaha
the dry:
2003 bmw ///M5
1993 mustang/griggs racing road race car
and a handful of clunkers
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07-30-2022, 05:52 PM #13
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07-30-2022, 06:05 PM #14
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To be exact, my block is dated December 84 and is an 84 motor per Mercury. The boat is an 85 which I just use 85 overall when talking about it in general.
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