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[alaheat]

Hi
Does any one know if the y32se engine is fitted with piston cooling oil jets, I need this information for the dry sump system I am trying to spec for this engine?
Thanks
Alan

[Marks DTM Calib]

Hi
Does any one know if the y32se engine is fitted with piston cooling oil jets, I need this information for the dry sump system I am trying to spec for this engine?
Thanks
Alan

No it doesn't, its splash lubed which is clearly an issue for a dry sump setup.

Should be easy enough to add though.

3.2 is a good choice for the start of tuniung as its the only V6 of this series which has a steel crank

[Kevin Wood]

Hi
Does any one know if the y32se engine is fitted with piston cooling oil jets, I need this information for the dry sump system I am trying to spec for this engine?
Thanks
Alan

No it doesn't, its splash lubed which is clearly an issue for a dry sump setup.

Should be easy enough to add though.

3.2 is a good choice for the start of tuniung as its the only V6 of this series which has a steel crank

Is it really the case that you need oil jets with a dry sump? Just interested as I've not heard that before. I know people who are running dry sumped engines without oil jets. :-/ I'd assumed the bores get lubricated with splash from the big end journals (although sometimes there's an oilway running up to the top of the conrod).

Granted a dry sump system will not have a mass of oil sitting under the crank, but this should be clear of the crank when running so won't add splash. A dry sump will also clear the oil mist from the crankcase a little more efficiently so maybe it will reduce splash lubrication.  :-/

I think if I were playing with an engine and it's an easy step to fit them, I would anyway.  It's bit of insurance against melting a piston but increases the flow requirements of the pressure / scavenge stages.

Kevin

[Marks DTM Calib]

Hi
Does any one know if the y32se engine is fitted with piston cooling oil jets, I need this information for the dry sump system I am trying to spec for this engine?
Thanks
Alan

No it doesn't, its splash lubed which is clearly an issue for a dry sump setup.

Should be easy enough to add though.

3.2 is a good choice for the start of tuniung as its the only V6 of this series which has a steel crank

Is it really the case that you need oil jets with a dry sump? Just interested as I've not heard that before. I know people who are running dry sumped engines without oil jets. :-/ I'd assumed the bores get lubricated with splash from the big end journals (although sometimes there's an oilway running up to the top of the conrod).

Granted a dry sump system will not have a mass of oil sitting under the crank, but this should be clear of the crank when running so won't add splash. A dry sump will also clear the oil mist from the crankcase a little more efficiently so maybe it will reduce splash lubrication.  :-/

I think if I were playing with an engine and it's an easy step to fit them, I would anyway.  It's bit of insurance against melting a piston but increases the flow requirements of the pressure / scavenge stages.

Kevin

Quite often it has very little effect on the pump requirements as they only pulse squirt once per rotation.

They can give good bore lube as well (not that the V6 suffers to much here!).

You would be also quite surprised how much oil does get slopped about in a wet sump......even with baffles!

[Kevin Wood]

Quite often it has very little effect on the pump requirements as they only pulse squirt once per rotation.

Ahh, OK. you're talking about the oilways that run up the con rod and exit just under the piston?

I was thinking about the cooling jets on my Zetec which are little nozzles that are fed from the main oil gallery and spray up from the bottom of the bore (more commonly seen on tractors).

In that case I agree. probably best to have one or the other.

They can give good bore lube as well (not that the V6 suffers to much here!).

You would be also quite surprised how much oil does get slopped about in a wet sump......even with baffles!

Yes. When I first built my Westfield I was given some bad advice to ditch the windage tray that wraps around the bottom of the crank as my sump has a horizontal baffle plate (later found out it's well under the oil level though.

I then drove to Le Mans. About half way there I had to bodge the breather system to divert the exodus of oil down onto the road rather than the windscreen. Still, meant the real nut cases in their exotica followed me at a sensible distance!

Kevin

[Marks DTM Calib]

Quite often it has very little effect on the pump requirements as they only pulse squirt once per rotation.

Ahh, OK. you're talking about the oilways that run up the con rod and exit just under the piston?
I was thinking about the cooling jets on my Zetec which are little nozzles that are fed from the main oil gallery and spray up from the bottom of the bore (more commonly seen on tractors).

In that case I agree. probably best to have one or the other.

They can give good bore lube as well (not that the V6 suffers to much here!).

You would be also quite surprised how much oil does get slopped about in a wet sump......even with baffles!

Yes. When I first built my Westfield I was given some bad advice to ditch the windage tray that wraps around the bottom of the crank as my sump has a horizontal baffle plate (later found out it's well under the oil level though.

I then drove to Le Mans. About half way there I had to bodge the breather system to divert the exodus of oil down onto the road rather than the windscreen. Still, meant the real nut cases in their exotica followed me at a sensible distance!

Kevin

I was thinking of the ones that are fitted to the side of the rod, they have a drilling through the main bearing and as the journal passes you get a squirt of oil at a specific point in the cycle.

[Kevin Wood]

I was thinking of the ones that are fitted to the side of the rod, they have a drilling through the main bearing and as the journal passes you get a squirt of oil at a specific point in the cycle.

Right. I'm with you. The type I had in mind are fitted to the block

Kevin

[alaheat]

Hi
I was actually enquiring about the type which is a rail with jets, so does this engine have any form of lower bore lubrication other than oil splash/ mist, I would not thought it got much oil splash as the rear two thirds of the sump does not appear to hold any oil, it is all drained into the front part of the sump, also there is a baffle plate fitted to the bottom of the main bearings on the rear part of the engine, which is above any level of the oil, has this been fitted to aid lower bore lubrication? I'm finding difficult to know which way to go with this engine there does'nt seem to be a previous attempt to dry sump it and I'm finding it hard to get any information so as much information would be greatly appreciated. I still want to use the original oil pump as the pressure part of the system but am still trying to get the flow rate for this pump, I have E-Mailed Vauxhall directly, so heres hoping! I am concerned now as I dont want to seize the engine, so any experience would be appreciated, to add a spray jet would not be easy as I want to use the original pump and this could effect the flow to other parts of the engine and is it neccessary? sorry to go on
Thanks
Alan