Views on additional cooling........

[grubscrew]

Having read a few iteresting post on oil cooling , I like the old amplifier heat sink affixed to the sump, provided the fix is permanent, like, hows that done? Bolted; not sure I could bring myself to do that, oil leaks etc.
 Failing that it is the oil cooler route. Having seen some of the fancy prices on the net and the basics behind it all , it really does not look too agro. It would seem the little alumiium threaded plugs top and bottom of the timing cover are removed and a  threaded spiggot inserted with tube too and from the , say 5/7 row jobby. Is it really necessary, perhaps not, have to wait and see what the temperature is doing. As a previous thread suggests , an open engine lid (this is on a 500, by the way),looks good hinged from above , as opposed to hinged from the base.
 There is also another train of thought, and that is cool oil , cooler than it should be, can also affect the engine, in terms of premature wear, so the answer to that is of course a thermostat in line.
 Any views , any one? Mike.

[thepuddlejumper]

The easiest way to fit an oil cooler is to drill a hole in the oil pump cover, weld an alloy take off to line up with the hole. Tap the end of the pump drive shaft, screw in a grub screw and lock in place.  This diverts the oil flow out through the take off to an external filter then onto the oil cooler.  From there you run a pipe to the  oilway access closest to the oil pump, it is a large alloy grub screw take care as they tend to corrode in.

Ralph

[thepuddlejumper]

Here's one I did earlier.

Ralph

[smallcox]

Oil does need to reach a reasonable temperature for all thoughts ingredients to start working in breaking down the carbon that blows past the rings/valves but air cooled engines run very hot anyway and fiat new this on the 2 cylinder that in my onion is why they fitted that double layer to the standard sump not that this is much cop.
Even a standard engine would be at advantage with oil cooler and in the winter just cover half the heat exchanger. Would not recommend fitting a filter in line as mentioned above as the oil pressure is not regulated until it re-enters the engine and any restriction here would load up the pump and may cause harm. I do have a filter on my engine but have calculated that a small hole through the pump would ease excess oil pressure and I also run synthetic oil so it is naturally thinner from cold.

recommend as a first mod

Regards Smallcox

[DEYAN IYI]

The easiest way (16 bolts and 2 more liters of oil) is to plug-n-play with larger aluminium oil sump. In winter time you can always put back the original one if needed. And alu rocker cover as well. (Abarth ones ... not to mention).   This would be good enough for a nicely working engine, and you got the extra wow-effect 


The best conception for   indeed:  http://www.mofoco.com/item/EMPI_9248_VW_BUG_ENGINE_OIL_COOLER_FAN_KIT_BOLT_ON/2209/c78

[grubscrew]

I have the 4litre ally sump, bear in mind this is all for a 750cc lump, panda head, but i dont intend to thrash the poor girl. Ive spent ages fabricating the original cooling cowling to fit the wider head, to not only maintain its "original look", and also maintaining the capacity to send heat through to the car if required, via the 60mm elbow at the top of the cowling.
The thermostat will also work as it used to. I have seen/read about some people removing the flap which is activated by the stat; does that not sto/restrict the flow of air to the car?
I see the pictures Ralf has done, but on looking at the cover on an old 500 engine I have, has two blanked off holes top/bottom, those I guess are the flow/return. It also looks as though some timing covers are different. Thank for your previous views.Mike. P.S. I would like to put a few photos up of this engine but Im not that clever in the computer dept.

[Rusty's Uncle]

Hi Mike, I have come across a couple of differences in timing chain covers but only in that the 126 ones are fitted with a larger volume oil pump than the 500 and some later 126 ones have more timing marks. The 795 ccs Alquaiti engine I picked up a couple of years back had not been fitted with an oil cooler it just had a larger alloy sump. I know that the guy I bought it from would have given it a thrashing and it seems to have survived OK. I know of one other similar engine localy , like mine not currently running, but that one has just got the standard steel sump.

[grubscrew]

Hi Mike, I have come across a couple of differences in timing chain covers but only in that the 126 ones are fitted with a larger volume oil pump than the 500 and some later 126 ones have more timing marks. The 795 ccs Alquaiti engine I picked up a couple of years back had not been fitted with an oil cooler it just had a larger alloy sump. I know that the guy I bought it from would have given it a thrashing and it seems to have survived OK. I know of one other similar engine localy , like mine not currently running, but that one has just got the standard steel sump.

                     Thanks Rusty for that. It would be a good idea to obtain one of those infrared temperature monitors, the ones you point and read the results.Still, this type of weather I need not worry until the summer. I may take a trip to the next 2013 Garlenda ,and have a bit more of a look. Thankyou for that. Mike