Date: Mon, 21 Jun 2004 00:48:39 +0100 From: Charles Christacopoulos <c.k.christacopoulos_removeme_nospamee.ac.uk> Subject: Re: Saab 9k oil pressure drop
danny wrote: > Further to my recent post regarding the oil pressure dissapearing in my > 1990 2.3NA we got round to removing the (newish) oil pump rotors and > found nasty things. > > There were slices of what appears to be either a pin or a needle roller as from a bearing (needle bearing?) > cut up in the pump rotors. The slices measure 25.9mm diameter, with an so if you put them together end to end the formed a circle Do you mean solid slices like salami or rings eg. slices that look as if they have come from a tube > overall combined length of maybe 6mm found in there , but the pin or > whatever it is could have been longer. Where could such a thing have > come from and how could it have got past the strainer, or is it possible > to come from above? I can't figure out what you are seing (and my engine re-building is from the early 900s) > > Incidently, the engine still starts and runs fairly quietly (apart from > the hydraulic tappets) - not siezed or anything yet. > > Now draining the sump to see what other bits of metal might be lurking > there... > In my days in the army I found pison oil scraper rings broken and in the sump but their diameter is a bit bigger than 25 - 26 mm but they are thin enough to look like a very fine slice of a large tube. I can only thing of the the sleeves of the small ends which could be around 25mm (or is it the big ends ... I knew I should have left the crankshaft in the dinning room). In full honesty I would look much nearer the pump for what you found esp. in case there were some old simms or similar in there when you did the previous job. I notice you are a gaggia & espresso nutter too (that is where I have come accross you before). Yeap just got my classic back from repair and got a new coffee filter ... I will have to grind coffee to nanometer thickness to pull a double shot in 25sec :-) -- Please remove _removeme_ to reply. Work: http://www.somis.dundee.ac.uk/ Hobby: http://www.egothor.org/
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