oil cooler questiom

[timrfo]

I just bought a 1977 R100 and was wondering how hard would be to install an oil cooler. Tim

[20774]

Just curious, why? One could argue that the oil will be fine without the cooler, it adds a possible failure point in the lubrication system, and increases the complexity of changing oil/filters. :dunno

[DARRYL CAINEY]

I just bought a 1977 R100 and was wondering how hard would be to install an oil cooler. Tim

If you want to put an oil cooler on do the easier route!

Put on a flow through cooler between the block and your oil pan.

It increases your oil capacity by one quart and air flows through 3 holes running front to back cooling the oil.
It requires two oilpan gasgets and an extention of the oil pickup and longer oilpan bolts. It is relativley easy to install and it dosen't hinder changing the filter.
Siebenrock from Germany sells them for around $200.
I have been running one for over 300,000 miles!

Darryl

[roncooper]

I put a pan extender on a 75 60/6 and had to cut a crossbar out of the centerstand. The stand still worked fine for many miles .

Ron

[timrfo]

Thanks for the infor I know some say you don't need it some says you do but I know cooler oil will do a better job ...:thumb

[lkchris]

BTDT It's a medium hard job.

Just understand that cooler works at high rpm, high load situations, i.e. fast highway driving.

[sgborgstrom]

Thanks for the infor I know some say you don't need it some says you do but I know cooler oil will do a better job ...:thumb

To be a bit more precise, oil at the proper viscosity will do a better job.

You're talking about modifying a bike that's been running around for 31 years (along with tens of thousands of it's counterparts) quite happily without an oil cooler all this time and suddenly it needs one?

Your money, your bike, do what you will with both but I'm not sure you are "solving" anything with this.

[The_Veg]

Depends too on where you live. If you're as far south as I am, you might want it.

[lostboy]

Many years ago I did some oil temperature testing. My R100 with forged pistons and Crane cam would show frightening temperatures at sustained high speeds (110+) -upward of 300F. An aftermarket cooler got it under control. Another, stock R100 would barely break 200 under the same circumstance.

But what you asked was how difficult it is to install a cooler. The OEM cooler is a fair bit of work; you have to remove the stub the filter mounts on from the crankcase and replace it with longer one used with the cooler. It's also wise to install a 1984 RH header pipe which is dented to make filter changes easier.

[lkchris]

Oil cooler is a good idea, but if you're worried about heat first thing you should do is use synthetic motor oil. There are NO downsides despite lots of old wives' tales out there.

[AnnapolisAirhead]

FWIW I just inquired at Bob's BMW over the weekend regarding cost, they indicated it'd be around $500 ponies...I think the deeper pan and/or a Braill<sp> flow thru mentioned above would be more cost effective. Then again, I don't ride at 110MPH. ;-)