Check out the classifieds on [url]www.thesamba.com[/url]. Lots of good deals on used parts. Lots of them out your way.
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Check out the classifieds on [url]www.thesamba.com[/url]. Lots of good deals on used parts. Lots of them out your way.
[QUOTE=vwbug72501;562910]I had the external oil cooler shown in the Scat page that I posted a link to on several engines over many years. Put thousands of hard miles on them and never had a heat problem. The cooler was mounted over the fan input opening on the back of the upright shroud. If you get the 50102 cooler listed, it should work fine.[/QUOTE]
I did check out that link, and I do like the price of it.
I take it one can put on the oil filter adapter, so one has the external oil filter to change, but still run the oil cooler from the back of the fan shroud ?
Why run hoses from the oil filter to a cooler and fan if not needed. I do not see putting the cooler in front of the input air for the fan area a great idea, why, because we have hot oil being cooled by the air flow, which in turn would be warmer from passing over the cooler, so now the fan is taking in this warmer air to keep the heads cool.
Is it that big of a difference ? I mean that smaller oil cooler mounted across the opening of the fan, would it really heat up the air enough to effect the cooling of the engine ? It is a good area for air flow as the fan is pulling it across the oil cooler.
That is so true, forgot about that section on the site. I do search out info over there, in fact that is what lead me here. Bug facts are strong over there, but trike facts, this is the place to be.;)
A trike tends to be a mash up of whatever works.
Being lightly loaded you can get away with a lot less efficient fan and cooler set up.
I also hang out at the samba some also. I don't get a lot of talk there. I suppose I am a little to far out there away from the norm for those guys.
If you hook a cooler to the existing adapter then it will be regulated and operate more like the stock one because of the controll piston and spring set up in the case.
I would not add a filter in that adapter line. It is not going to do much there.
I would add a filter at the pump.
[QUOTE=grandpanystrom61;562921] I do not see putting the cooler in front of the input air for the fan area a great idea, why, because we have hot oil being cooled by the air flow, which in turn would be warmer from passing over the cooler, so now the fan is taking in this warmer air to keep the heads cool.
Is it that big of a difference ? I mean that smaller oil cooler mounted across the opening of the fan, would it really heat up the air enough to effect the cooling of the engine ? It is a good area for air flow as the fan is pulling it across the oil cooler.[/QUOTE]
The original early model fan housing had the oil cooler inside the the housing where the hoses are coming out now. The air flow went through the cooler and then over the 3-4 cylinders. They used that setup from 1946 to 1972 in full bodied cars and vans and it worked. Like Rex said your engine is lightly loaded and out in the air. Putting the cooler in the fan airflow gives you airflow when idling and at low speeds without the need of the additional wiring, thermostat, and switches for an electric fan.
The VW fan moves a maximum flow around 1200 cfm at speed and probably about 700 cfm at idle. The oil cooler preheat won't be a problem. IMO.
sorry, guess my thought one thing and I said another. Yes, I did mean to put the external oil filter at the oil pump with the adapter plate. I seen one full kit, it was the filter adapter with ports for the external cooler.
I just wanted to see if it was a good idea. It would look cleaner I think if I did have the oil cooler off the back of the fan shroud using the adapter that someone installed.
Than up at the oil pump I can put the external oil filter, yes it hit me, the aftermarket oil cooler kit runs throw the filter first to clean the oil before going into cooler, this is a good method.
Will my idea still provide clean oil to the cooler, wow, if I am putting on an external oil filter, and it does not have one now, than I will be doing better than stock condition. Wow to early, I need to wake up, coffee time.
good day, so oil temperature sensor location, what is the best place for it to be on the engine?
I do have the dual relief port block and currently have the sensor at the rear port near #4 cylinder.
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I will check the wiring again, verify it is the right sensor for the VDO gauge, but it does not really work correctly.
It takes some time before any needle movement occurs, and than it barely gets past 120 degrees.
I have to be honest, this side of the VW I do not know. I was 16 years old when I ran my first bug into the ground. Later in life I had the old rag top bug, wow, should have kept it, but young families do what they must to survive.
This is the most I have dove into a VW engine, electrical, and have learned about them and some of their design's.
I just started wondering if I choose the right place for the temp senor.:xzqxz:
The vw engineers assumed hot oil equals lower pressure. So the oil cooler flow is controlled by a pressure spring. It does NOT turn off the flow this direction and then turn on flow to the other direction. The path to the cooler just opens and it becomes the path of least resistance. If you add too much resistance to the cooler path then oil will just go the other way around. So don't put the filter on the adapter hoses....cooler only.
So you are already talking about the filter on the oil pump.
There are several set ups for doing this. Be careful with what you choose. It is easy to do this wrong.
Almost all of the pump covers with a single out fitting require internal machine work...ie...blocking passages for the re-direct. Then an oil entry point machined into the case and back into the galley.
A large amount of the made in China two port (in out) covers are either machined wrong or have no instruction about the additional machine work needed.
The filter pump covers....some are good....large amounts of them are not.
The only place I have direct experience with that makes the modifications correctly is cb performance. They have complete pumps (not just a cover plate) that are not a stock type pump. It is made/machined in a way to reduce or eliminate the other machine work needed to work.
The place you have your oil temp is not a good flow hot spot. Anywhere is better than nowhere. The sump is not the best place but some report good results from tapping into the sump plate near the oil pick up tube. Most will say that in the oil passage right before the bearings is the ideal spot. As in the oil line returning to the engine from an external cooler or filter.