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View Full Version : Help!!..Volvo/Archimedes Penta o/b



Pianorealm
02-03-2006, 22:10
Hi.
I really hope someone can help me here. I've aquired a 1973? Volvo Penta outboard. It didn't pump water but otherwise is in mint cond. It seems it's impossible to get a workshop manual for this engine, so I'm working 'blind'.
I've removed the lower leg and opened the pump casing. I've sourced new impellers and seals.
My probelm is this; From the top of the pump casing runs an offset 10mm copper pipe. This is approx 30cm in length (I'm trying my best in metric)!! It would appear (looking up inside the upper leg) to connect to the water jacket for the engine.
I can't make this connection properly without disconnecting the upper leg. So, I've removed the 4 nuts but the section seems to be stuck at the lower end of the steering tube...some sort of large rubber bush? Just won't slide off!
How the heck do I free this? Is it brute force and do I have to wreck this rubber bush? Seems excessive just to replace impeller/seals.
Any help at all would be most welcome!!!!

Regards

Howard

ChrisP
02-03-2006, 22:49
Slide a thin bladed screwdriver between the rubber and metal, dribble a bit of fairy liquid down the gap, wiggle the sdrewdriver blade sideways, bit more fairy......till you get all round it. It will slide off then.

harpo
03-03-2006, 08:57
copper tube should be push fit into pump if it is pull out fit up inside leg and then you guide it into the pump

wavelength
03-03-2006, 17:00
if by chance you can get a manual for a Crescent they are the same unit.
We bought a new VP 350 3 cylinder o/b during the 70s and ran it for years-never had a problem with it.

Pianorealm
03-03-2006, 22:36
Thanks very much to those who replied to my post. I've got the upper leg off now (fairy)! and can see in needs a new seal where the copper pipe goes into the block. Should be able to get one from a seal supplier? Once I've got that fitted I'll rebuild and hopefully get out and fish!!!!. Thanks again

Howard

ChrisP
03-03-2006, 22:48
When you reassemble a spot of fairy will ease the way for the seals going back.

blueskip
04-03-2006, 17:00
With all these "fairy's" about, & the "makes the entry easier" innuendos, be careful we dont get known as the Gay WSF, luv!
blueskip

Richard Rudd-Orthner
11-01-2009, 14:29
I have a Volvo Archimedes outboard that is 6hp. I think it is a VP60 or VP70 it runs but overheats (stalls). The water appears not to be pumping through it as there is only exhorts gasses expelling from the outlet on the upper leg, some times spits when revved. However the engine stops after a short while at idle expect it might be over heating (but head is not to hot to touch). I took the foot apart to found water in the gearbox but no corrosion so cleared out with diesel and re-sealed the gear box, there was a seal missing (no renewed). The impeller looked new as do the seals. I suspect that the water jacket in the head must be block how can I clear this? I tried engine flush did not seamed to help. If I use an air hose it appear to blow through, but could it be escaping from some where else? Does anyone have a manual or advice on how to clear it out. I want to use it in salt water, will this be ok if I fit a anode? And finally how much oil to you put in the gear box. I found it hard to fill so I took it part and filled it do the gear was immersed.

waveleaper
11-01-2009, 19:49
if anyone is interested i have a 70hp penta for sale, most of it is in near mint condition, all 3 cylinders test over 10 bar, new prop. just bought a 4 stroke because it was an offer i couldn't refuse

Nos4r2
11-01-2009, 19:59
I have a Volvo Archimedes outboard that is 6hp. I think it is a VP60 or VP70 it runs but overheats. The water appears not to be pumping through it as there is only exhorts gasses expelling for the outlet on the upper leg, some times spits when revved. However the engine stops after a short while at idle expect it over heats. I took the foot apart to found water in the gear box but no corrosion so cleared out with diesel and re-sealed the gear box, there was a seal missing. The impeller looked new as do the seals. I suspect that the water jacket in the head must be block how can I clear this. I tried engine flush did not seamed to help. If I use an air hose it appear to blow through, but could it be escaping from some where else? Does anyone have a manual or advice on how to clear it out. I want to use it in salt water, will this be ok if I fit a anode? And finally how much oil to you put in the gear box. I found it hard to fill so I took it part and filled it do the gear was immersed.

Post a pic under the cowl please?

Richard Rudd-Orthner
12-01-2009, 19:57
I have a short video off the engine running. Had to put it into a zip file to be uploaded. Note that when it stalls the engine head is not too hot to touch. The stream you can see coming from the exit hole on the leg is exhorted gas rather then water, steam or mist. Seam quite noisy too me but I am not qualified to say about twice as noisy as my VIRE 12 or my Johnston 4hp. Note Johnston seahorse 4ph also appears not to be pumping but I cant find the exit hole and it does not seam to stall. Put Johnston video for noise comparison. The Arch seam more clunky noise?

Nos4r2
12-01-2009, 23:39
Have you checked the carb settings and that your choke on the archimedes isn't partially stuck? If it's fuelling wrong it's likely to stall when it warms up.

Re the Johnson cooling-look on the back of the leg about half way down and you'll see some holes. The only telltale on those is when you see water spitting out of those holes along with exhaust gas.

Pedro the Fisherman
13-01-2009, 00:08
12 hp standard (Short!) shaft Penta looks brand new - used for a one week holiday I was told - is looking for a new home. Would suit a classic / vintage boat. Offers invited! Photos available.

Richard Rudd-Orthner
14-01-2009, 11:01
Have you checked the carb settings and that your choke on the Archimedes isn't partially stuck? If it's fuelling wrong it's likely to stall when it warms up.

Good call, there was a problem with the Carb and I used carb cleaner, but perhaps it needs stripped down. I suppose if it has be laid up for some time then the oil could clog, particularly if it was stored on it side. I think this is good approach and I will strip the carb, however I still do not get much water coming out of the telltale is this concern?


Re the Johnson cooling-look on the back of the leg about half way down and you'll see some holes. The only telltale on those is when you see water spitting out of those holes along with exhaust gas.

I will check the leg as you said, how much spitting should it give (how often a second)?

I enclosed a picture of my boat and my inboard (VIRE 12) for interest.

Nos4r2
14-01-2009, 15:12
Good call, there was a problem with the Carb and I used carb cleaner, but perhaps it needs stripped down. I suppose if it has be laid up for some time then the oil could clog, particularly if it was stored on it side. I think this is good approach and I will strip the carb, however I still do not get much water coming out of the telltale is this concern? Try cleaning the telltale out with something-they often block. It doesn't sound like it's overheating.




I will check the leg as you said, how much spitting should it give (how often a second)?

it should spit every time it fires.

Richard Rudd-Orthner
17-02-2009, 14:06
It turns out that choke just needed to be set-up. Also now understand the engine starting procedure and it much easier to start. Wide Open Throttle and choke full open pull cord twice then choke off and it starts in next two pulls. I find that it will idle if I slightly pull the choke. I expect the rod has be bent at some time, so it adjustment is off. I am running her on 1:50 mix, should I reduce this to 1:100 mix. Engine temp even when thrashed never overheats

Nos4r2
17-02-2009, 14:39
It turns out that choke just needed to be set-up. Also now understand the engine starting procedure and it much easier to start. Wide Open Throttle and choke full open pull cord twice then choke off and it starts in next two pulls. I find that it will idle if I slightly pull the choke. I expect the rod has be bent at some time, so it adjustment is off. I am running her on 1:50 mix, should I reduce this to 1:100 mix. Engine temp even when thrashed never overheats

50:1 is what it needs.

If you're having to pull the choke to idle, check the mixture screw setting and that there's no damage-it should have a sharp point when you remove it.
You should be able to get it to idle at somewhere between 1.5 turns and 3.75 turns out from gently seated(not sure what\ carb is on that engine but 1..5 to 1.75 is generally right for some, others need 3.75ish turns). It may also make starting easier.

Richard Rudd-Orthner
08-03-2009, 14:33
Thanks. You are right, I adjusted the choke control and adjusted the Carb mix setting and it now Start from cold on the first pull and idles fine. It turns out to be a very good manoeuvring engine when in Marina or in lock gates.

Once again many thanks

repec00
10-04-2010, 13:39
Hi

I have a feeling I have very bad luck with my outboard.
Today my outboard doesn't start again.
Do you have manual for the outboard nowadays?Could you share with me?
Or somebody elese have it?

Regards from Hungary
Thank you in advance