BMW K bikes (Bricks)

You are not connected. Please login or register

View previous topic View next topic Go down  Message [Page 1 of 1]


1Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Ebay Aluminum Radiator Thoughts on Fri Oct 23, 2020 11:20 am

dwnhillskater

dwnhillskater
active member
active member
Does anyone have any thoughts on this radiator on ebay?

https://www.ebay.com/itm/333723246442

I am pretty new to the k-bikes, but it doesn't look like it has a thermostat spot?

Any help is much appreciated!

    

2Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Fri Oct 23, 2020 1:31 pm

chris846

chris846
Life time member
Life time member
Have a look at the current thread 'New K75 Project' post 20,  the OP might be using the same radiator?


__________________________________________________
Sometimes I'm not really Suzi Quatro.
    

3Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Fri Oct 23, 2020 1:39 pm

Laitch

Laitch
Life time member
Life time member
Both radiators have thermostat housings. The aluminum radiator has a cover that screws into the thermostat housing rather than a cover that is bolted onto the housing. The worth of that system is hard to determine without reviews from reliable sources.

Ebay Aluminum Radiator Thoughts K100_a11
Ebay Aluminum Radiator Thoughts Oem_k111  Ebay Aluminum Radiator Thoughts Scree111


__________________________________________________
1995 K75 81,000 miles
Ebay Aluminum Radiator Thoughts Usa-lo10
    

4Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Fri Oct 23, 2020 6:41 pm

Wiz

Wiz
active member
active member
I have one on my k100 of an older spec than this one which wasent great, but this model appears to address most of the issues I have with mine.

My radiator (same design) has a different seal for the radiator housing, it uses a flat rubber washer that is not contained in any way, thus it can be pushed outward by various means(pressure from cooling system, or rotation of the cap when you tighten it for ex)

This model you show in this listing has been updated to use a round o-ring and chamfer on the body of the radiator thermostat housing. This is definitely a better sealing method than is present on my model.
It also appears that they have taken into account the depth issues on the previous models and remedied it, so I would like to change my answer, this does look like a potentially good replacement and I think i might purchase one myself.

Wiz

    

5Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Fri Oct 23, 2020 6:58 pm

Wiz

Wiz
active member
active member
I just purchased one, I will post back here when it arrives and let you guys know if it's worth it's salt.

Wiz

    

6Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Fri Oct 23, 2020 7:03 pm

dwnhillskater

dwnhillskater
active member
active member
@Wiz wrote:I just purchased one, I will post back here when it arrives and let you guys know if it's worth it's salt.

Wiz
Thanks! Keep me posted.

    

7Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Sat Oct 24, 2020 1:11 am

brickrider2

brickrider2
Life time member
Life time member
The ad says there is but one left....


__________________________________________________
1996 K1100LT
    

8Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Sat Oct 24, 2020 10:29 am

Laitch

Laitch
Life time member
Life time member
@brickrider2 wrote:The ad says there is but one left....
. . . until that one's sold, then there will be another one for sale.  Laughing


__________________________________________________
1995 K75 81,000 miles
Ebay Aluminum Radiator Thoughts Usa-lo10
    

9Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Rad Came Today on Tue Nov 03, 2020 10:40 pm

Wiz

Wiz
active member
active member
My radiator came today, I will be installing it soon as the coolant is drained and will let you guys know how it fits. The bar isn't very high right now, as the current aftermarket radiator fits poorly.
It lacks the cut out that is present in this model on the rear. This radiator also has a much more reliable seal for the thermostat housing as I had suspected due to the chamfer on the inside edge of the housing.
It is of note that its probably a good idea to make a small mark on the thermostat housing cap as shown in the first image to ensure the holes for coolant flow are lined up.

The welds are not pretty, it is definitely not the same quality that the BSK Speedworks radiator seems to be, however it does look structurally sound. Overall I would say its an upgrade from what I have now, and at the price point
its hard to beat assuming it works as intended and fits properly. 

I will update you guys again when I install it. Below are some pictures for your inspection if you choose to buy one yourself.

Cheers
Wiz
Ebay Aluminum Radiator Thoughts 11032011

Ebay Aluminum Radiator Thoughts 11032012 Ebay Aluminum Radiator Thoughts 11032013
Ebay Aluminum Radiator Thoughts 11032014



Last edited by Wiz on Tue Nov 03, 2020 10:41 pm; edited 2 times in total (Reason for editing : Duplicates)

    

10Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Tue Nov 03, 2020 10:55 pm

dwnhillskater

dwnhillskater
active member
active member
Thanks for the update, Wiz!! Look forward to hearing the install results.

    

11Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Wed Nov 04, 2020 10:38 pm

brickrider2

brickrider2
Life time member
Life time member
Ditto!   cheers


__________________________________________________
1996 K1100LT
    

12Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Installed it on Wed Nov 11, 2020 7:01 pm

Wiz

Wiz
active member
active member
So I installed it, and its not perfect, but it does work. Bear in mind that I don't have the stock bushing for mounting the radiator at the top (was missing when I bought it) so I am using a 1 inch aluminum spacer for now. It seems to fit fairly well, better than the other radiator I had anyway. I cant really speak for the placement of the mounting holes on the sides of the radiator as I don't have the pieces that would be affixed there from factory, but I can say that the body panels I do have seem to line up fairly well. (the factory spacer would probably help too). As a cheap replacement for the factory radiator it looks pretty good, I would recommend tryin it if you need a radiator.


Here are some photos of it mounted, and a radiator cover in place as a bonus.

Ebay Aluminum Radiator Thoughts 11062012
Ebay Aluminum Radiator Thoughts 11062011
Ebay Aluminum Radiator Thoughts 11062010
Ebay Aluminum Radiator Thoughts 11062013

    

13Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Thu Nov 12, 2020 5:43 am

chris846

chris846
Life time member
Life time member
Okay okay, game's up - what's the wire/hose running from the Hall sensor casing?

Laughing



Last edited by chris846 on Thu Nov 12, 2020 5:43 am; edited 1 time in total (Reason for editing : spellink)


__________________________________________________
Sometimes I'm not really Suzi Quatro.
    

14Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Thu Nov 12, 2020 6:16 am

Wiz

Wiz
active member
active member
@chris846 wrote:Okay okay, game's up - what's the wire/hose running from the Hall sensor casing?

Laughing

That is the wire going to the VR sensor for the crank, I am using an ms3 pro for the ecu now and opted for a toothed gear crank sensor so I can have full control of the timing in my tuning software.

Wiz

    

15Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Fri Nov 13, 2020 1:03 pm

brickrider2

brickrider2
Life time member
Life time member
The photos give the appearance of the alu radiator being "thicker" than the OEM item.  Is that an illusion?


__________________________________________________
1996 K1100LT
    

16Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Thickness on Fri Nov 13, 2020 7:49 pm

Wiz

Wiz
active member
active member
@brickrider2 wrote:The photos give the appearance of the alu radiator being "thicker" than the OEM item.  Is that an illusion?
Not sure of the exact core thickness, but it does have the cut out that the OEM item comes with I believe, at least mine did.

Do these pictures answer your question?

Ebay Aluminum Radiator Thoughts 11032016
Ebay Aluminum Radiator Thoughts 11032017

    

17Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Sat Nov 14, 2020 1:34 pm

brickrider2

brickrider2
Life time member
Life time member
If I remember correctly, the description on fleabay stated the amount of coolant in those radiators is greater than the OEM equivalent.  If that is so, then I imagine the core is wider (?).  I mention this because of my experience with my old K100.  It would happily sit at stop lights without the temperature gauge moving more than a tad.  My K1100 immediately registers higher temps in those situations, and soon the fan comes on.  I'm lead to believe that the OEM radiator has not a lot of cooling capacity to spare.  That, and my distrust of radiators (any radiator) with those plastic tanks crimped on the sides leads me to consider this aftermarket radiator as a good upgrade. I'll be grateful for thoughts stemming from you experience with this radiator. 
On the other hand, maybe I'm just indulging in my inner Nervous Nellie.


__________________________________________________
1996 K1100LT
    

18Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Sat Nov 14, 2020 5:08 pm

Laitch

Laitch
Life time member
Life time member
@brickrider2 wrote:If that is so, then I imagine the core is wider (?).  I mention this because of my experience with my old K100.  It would happily sit at stop lights without the temperature gauge moving more than a tad.  My K1100 immediately registers higher temps in those situations, and soon the fan comes on. . . . my distrust of radiators (any radiator) with those plastic tanks . . .
The K100 and the K1100LT have radiators with identical capacities. The difference between them is in their weight, engine size and how fairings affect air flow. A periodic and thorough cleaning of the core fins and flushing of the cooling system might settle down Nellie.  Smile

The OEM radiator in my moto has given no trouble after 80,000 miles, much of which has been pounding over Vermont's quaint class 3 gravel road pothole fields.


__________________________________________________
1995 K75 81,000 miles
Ebay Aluminum Radiator Thoughts Usa-lo10
    

19Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Sat Nov 14, 2020 5:42 pm

MartinW

MartinW
Life time member
Life time member
I've never had a problem with my cooling system even on 40C + days on high speed runs. Over a 175,000 K's and 20 + years of ownership. The key is running the correct coolant and distilled water and changing it at the recommended intervals and the occasional bug vacuuming of the fins. I have given it a flush a couple of times but it was really not necessary as no contaminants found. I have also been using the OEM coolant as it is about the same price as the aftermarket coolant. I'm not sure if there is a side benefit to what I have been doing but I am still on my original water pump seal. It has however been fitted with a Davies Craig fan motor with override switch for the last 20 years and this is exercised every couple of weeks.
Regards Martin.



Last edited by MartinW on Mon Nov 16, 2020 2:22 pm; edited 1 time in total


__________________________________________________
K75s Hybrid
    

20Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Sun Nov 15, 2020 1:19 am

Point-Seven-five

Point-Seven-five
Life time member
Life time member
Laitch is correct about cleaning bugs out of the fins. My first K100 had a problem with overheating. The only time it was really happy temperature-wise was going down the road in cool weather. Stopping, low speed traffic, and hot weather was sure to turn on the fan(which had melted brush holders when I got the bike).

Several cooling system flushes removed the lime buildup from a previous owner who probably used well water in the cooling system, but the real improvement came when I soaked the whole radiator in vinegar over night and flushed a very large amount of marinated bugs and dirt from the fins.

Following the flush and the installation of a Spal fan I never had another problem with temperature, even in stop-and-go traffic on 95F days.


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

21Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Mon Nov 16, 2020 11:58 am

brickrider2

brickrider2
Life time member
Life time member
My K1100LT radiator is largely bug-free.  Maybe I need to flush it again.  
As for the service life, I had a leak in the K100 RS radiator I owned in the the past.  It was repaired but it soon failed again.  The plastic tanks have absolutely nothing to recommend them, except that they probably save manufacturers a few cents. In a brand that has positioned itself on the "premium" end of the spectrum I expect better.


__________________________________________________
1996 K1100LT
    

22Back to top Go down   Ebay Aluminum Radiator Thoughts Empty Re: Ebay Aluminum Radiator Thoughts on Mon Nov 16, 2020 1:21 pm

Laitch

Laitch
Life time member
Life time member
@brickrider2 wrote: It was repaired but it soon failed again.  The plastic tanks have absolutely nothing to recommend them . . ..
Corrosion wouldn't seem to be a problem anyway  Laughing


__________________________________________________
1995 K75 81,000 miles
Ebay Aluminum Radiator Thoughts Usa-lo10
    

View previous topic View next topic Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum