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Search: Posts Made By: bikecat
Forum: Airheads 05-18-2015, 07:34 AM
Replies: 8
Views: 449
Posted By bikecat
I believe that an Enduralast unit was on the...

I believe that an Enduralast unit was on the crank shaft with the attachment. could that be from the Enduralast?

I have a question on the above picture. With the seal in place like so, the inner...
Forum: Airheads 05-18-2015, 06:31 AM
Replies: 8
Views: 449
Posted By bikecat
Thanks. No bolt in the middle. I am...

Thanks. No bolt in the middle.

I am surprised that this is not common place. With the tapered end, the oil seal will not seal against the sides of the cone.
Forum: Airheads 05-18-2015, 05:27 AM
Replies: 8
Views: 449
Posted By bikecat
Crankshaft add-on? How do I remove this?

Hi Guys,

I saw that the crankshaft has an added piece which sits over the tapered end. Let me explain:

Tapered end:

http://cyclenetparts.com/images/items2/c21/SAM_0195_e13b25.JPG

Now this...
Forum: Airheads 05-05-2015, 09:37 PM
Replies: 94
Views: 2,735
Posted By bikecat
You need to change out most of the seals and...

You need to change out most of the seals and gaskets. The rear seal under the clutch too.
Forum: Airheads 05-05-2015, 09:34 PM
Replies: 12
Views: 660
Posted By bikecat
Agree that I never had that problem.

Agree that I never had that problem.
Forum: Airheads 03-16-2015, 05:47 PM
Replies: 6
Views: 504
Posted By bikecat
I could not locate any other markings apart from...

I could not locate any other markings apart from the flywheel's.

So I just went ahead and installed the clutch, after aligning the flywheel at TDC.

Thanks fellas.
Forum: Airheads 03-12-2015, 07:04 PM
Replies: 6
Views: 504
Posted By bikecat
Clutch rebuilding and installation

Dear Gents (and ladies),

I am now rebuilding my clutch. A few questions:

1. The flywheel needs to be oriented properly, using the timing mark against the timing hole, at TDC. What then is the...
Forum: GS Boxers 11-20-2014, 04:23 PM
Replies: 32
Views: 2,114
Posted By bikecat
Try and save the battery: 1 . Measure the...

Try and save the battery:

1 . Measure the voltage now. If it is anything less than 12v the batt is dead.

2. Hook up a good battery to it, negative to negative, positive to positive. Monitor...
Forum: Airheads 11-01-2014, 10:12 PM
Replies: 15
Views: 1,286
Posted By bikecat
Looks like 2 seats. Last pic is for 2-up.

Looks like 2 seats. Last pic is for 2-up.
Forum: Airheads 10-28-2014, 05:13 PM
Replies: 96
Views: 6,827
Posted By bikecat
I have a question: The thickness of the Wall...

I have a question: The thickness of the Wall seems awfully thin. Using your method suggested, will there be sufficient strength to hold the insert?
Forum: Airheads 10-28-2014, 06:42 AM
Replies: 96
Views: 6,827
Posted By bikecat
Guys, I have partial answers. The Bigsert repair...

Guys, I have partial answers. The Bigsert repair was not properly done. To recap:

http://i49.photobucket.com/albums/f254/bikermeow/2014-10-25152811_zps15c4a313.jpg

With the Bigsert in place:
...
Forum: Airheads 10-28-2014, 02:52 AM
Replies: 96
Views: 6,827
Posted By bikecat
I am so glad that I stopped riding the bike when...

I am so glad that I stopped riding the bike when the sound started. :rofl

Seriously, I did ride the bike for about 2000 km without issues before the sound started.
Forum: Airheads 10-27-2014, 06:03 PM
Replies: 96
Views: 6,827
Posted By bikecat
I do not understand. If the stud pulled, would...

I do not understand. If the stud pulled, would not there be a leak? There was none. The valve clearances on the left side (where the damaged push rods were) were virtually next to nothing when I...
Forum: Airheads 10-26-2014, 05:12 PM
Replies: 96
Views: 6,827
Posted By bikecat
I hear you, and the news is bleak. The repair was...

I hear you, and the news is bleak. The repair was that of a Bigsert. Called a shop and he suggested a repair is possible.

May be time to hunt for a used block. What are the factors that affect a...
Forum: GS Boxers 10-25-2014, 09:06 PM
Replies: 3
Views: 637
Posted By bikecat
Would a twin-cam engine fit in a single cam bike?

Will a twin-cam engine swap with a single cam R1200GS work?

My concern is with the BMW engine management system, will it accept the swap? Any other concern?

Thanks for any advice.
Forum: Airheads 10-25-2014, 08:14 PM
Replies: 96
Views: 6,827
Posted By bikecat
Thanks for the encouragement. Any links to the 2...

Thanks for the encouragement. Any links to the 2 methods that I can look at?

Here's a pic of the top left stud hole, left cylinder, with the coil removed:
...
Forum: Airheads 10-24-2014, 06:43 AM
Replies: 96
Views: 6,827
Posted By bikecat
To my knowledge the crank / cam shafts have never...

To my knowledge the crank / cam shafts have never been removed. I did remove both cylinders on my watch to change a pair of piston rings.
Forum: Airheads 10-23-2014, 09:59 PM
Replies: 96
Views: 6,827
Posted By bikecat
Thanks. Not too sure what to look out for, will...

Thanks. Not too sure what to look out for, will appreciate a picture of the oil supply hole. Would rather not pull out the untouched stud if I can avoid that.

Is this it?
...
Forum: Airheads 10-23-2014, 05:30 PM
Replies: 96
Views: 6,827
Posted By bikecat
I'm in Singapore, and it is hard to get a good...

I'm in Singapore, and it is hard to get a good motorcycle mechanic here. English literacy for the mechanics here is a basic problem, and most of them if not all do not use manuals. As a noob and...
Forum: Airheads 10-23-2014, 08:38 AM
Replies: 96
Views: 6,827
Posted By bikecat
It will get picture heavy now ... first the...

It will get picture heavy now ... first the push-rods, the marked ones are the left side, where knocking seemed to come from ....
...
Forum: Airheads 10-22-2014, 05:38 PM
Replies: 96
Views: 6,827
Posted By bikecat
Dear all, Thanks for the pointers. I will...

Dear all,

Thanks for the pointers. I will tale pictures of the relevant parts and see where we go from there. I reckon that I will clean up the valves and then evaluate.

I'll be away from the...
Forum: Airheads 10-22-2014, 05:34 AM
Replies: 96
Views: 6,827
Posted By bikecat
Yes, no metal particles. The dings are mysteries...

Yes, no metal particles. The dings are mysteries to me as to how they happened. I assumed that the knocking sounds came from the lifters as they were pitted?

I need some help here. The crankshaft...
Forum: Airheads 10-20-2014, 05:27 PM
Replies: 96
Views: 6,827
Posted By bikecat
It started with a knocking sound at traffic light...

It started with a knocking sound at traffic light that increased in loudness with rpms. I then travelled about 3 km and then shut off the bike.

So far the findings are:

1. Three of the...
Forum: Airheads 10-20-2014, 03:59 AM
Replies: 96
Views: 6,827
Posted By bikecat
Here is some pics from the con-rods and...

Here is some pics from the con-rods and crankshaft removal. Sorry for the poor quality:

http://i49.photobucket.com/albums/f254/bikermeow/IMG-20141016-WA0008_zps034d8501.jpg
...
Forum: Airheads 10-15-2014, 08:27 AM
Replies: 96
Views: 6,827
Posted By bikecat
Yes, to pull the crankshaft out. Unless there is...

Yes, to pull the crankshaft out. Unless there is no point in doing that after the con-rods are out.
Forum: Airheads 10-14-2014, 06:25 PM
Replies: 96
Views: 6,827
Posted By bikecat
Hiya. Yes, pulling the rods out is the next stage...

Hiya. Yes, pulling the rods out is the next stage and I am awaiting the special tool to get the bolts out. It will take a while while we hunt down a loaner set. I also found the crankshaft bearing...
Forum: Airheads 10-14-2014, 08:31 AM
Replies: 96
Views: 6,827
Posted By bikecat
More investigations, more clues .... The...

More investigations, more clues ....

The lifters from the right side. I was rather surprised that they were pitted too:
...
Forum: Airheads 10-14-2014, 02:54 AM
Replies: 96
Views: 6,827
Posted By bikecat
Thanks for the input, fellas. What about the 2...

Thanks for the input, fellas. What about the 2 spots of damage on the crankshaft? Just leave that?

http://i49.photobucket.com/albums/f254/bikermeow/Miscellaneous/20141013_211734_zps7a1f54ca.jpg...
Forum: Airheads 10-13-2014, 11:42 PM
Replies: 96
Views: 6,827
Posted By bikecat
Yes, It is. Thought a new thread on the engine...

Yes, It is. Thought a new thread on the engine will be more focused.

No metal flakes in the oil that I can see, and I the valve clearance on the left cylinder was too tight.

Obviously the...
Forum: Airheads 10-13-2014, 09:13 PM
Replies: 96
Views: 6,827
Posted By bikecat
Engine damage ... how bad?

Tell me what do you see, diagnosis and prognosis. Engine replacement or parts replacement?

Left push-rods damage:
...
Forum: Airheads 10-07-2014, 05:12 PM
Replies: 7
Views: 743
Posted By bikecat
Thanks for the feedback. I am looking for an...

Thanks for the feedback. I am looking for an airhead engine, post-1985. Offers with details can be pm-ed to me.
Forum: Airheads 10-07-2014, 12:22 AM
Replies: 11
Views: 917
Posted By bikecat
Expecting to find space and start the work in 2...

Expecting to find space and start the work in 2 weeks. Fingers crossed and tune in ....
Forum: Airheads 10-06-2014, 06:41 PM
Replies: 11
Views: 917
Posted By bikecat
I think it happens in neutral as well, but...

I think it happens in neutral as well, but increasingly audible with higher revs. As soon as I can clear a space in the workshop I'll open up.

Apart from metal flakes, anything to watch out for?
Forum: Airheads 10-06-2014, 07:05 AM
Replies: 7
Views: 743
Posted By bikecat
My bad. Typo. Post-85. R100GS etc. No starter.

My bad. Typo. Post-85. R100GS etc. No starter.
Forum: Airheads 10-06-2014, 02:42 AM
Replies: 7
Views: 743
Posted By bikecat
How heavy is an airhead engine?

I am trying to estimate the weight of a post-85 engine for shipping purposes and it seems to be as follows from the quantities at Max parts fische:

1. Short engine - 44.86 lbs
2. Cylinders with...
Forum: Airheads 09-22-2014, 05:22 PM
Replies: 11
Views: 917
Posted By bikecat
Thud, thud, thud, in engine ... what is next?

There's something wrong with my R100R.

Started the day's riding as any others, rode about 8 km (5-6 miles) then came to a stop light for about say 5 minutes. Moving off again, I felt a...
Forum: GS Boxers 09-17-2014, 06:35 PM
Replies: 18
Views: 1,972
Posted By bikecat
I thought I read somewhere that the covers are...

I thought I read somewhere that the covers are not magnesium, but only magnesium coloured ... research research
Forum: Airheads 09-15-2014, 08:28 PM
Replies: 48
Views: 4,480
Posted By bikecat
Big Bamboo, please keep the views coming....

Big Bamboo, please keep the views coming. Knowledge and experience sharing is what the internet about.

I am rather relieved that my 3,000 shudder is quite common.
Forum: Airheads 09-09-2014, 05:29 PM
Replies: 48
Views: 4,480
Posted By bikecat
So it seems a common phenomenon. Nothing to worry...

So it seems a common phenomenon. Nothing to worry about then.

I am curious whether it can be completely eradicated.

Most of my riding is at 3K to 4K, being city riding. I do find that giving...
Forum: Airheads 09-08-2014, 07:58 PM
Replies: 48
Views: 4,480
Posted By bikecat
Airhead riding experience - Vibes at 3000 rpm

I was reading this article from 1992 Bike Magazine at motorcyclespecs.co.za (http://www.motorcyclespecs.co.za/model/bmw/bmw_r100r%20Mystic%2093.htm) when I saw this paragraph:

"The engine and its...
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