Airhead Timing Chain... - Page 4

Rob Farmer · 03-06-2011, 11:53 AM

Quote:

Originally Posted by r2adv

I'm gettin nervous - that's my /6.

I'm dusting down my soapbox as we speak...

I hope somebody has a solution for you otherwise you're going to have to take the gearbox and clutch out.

jtwind · 03-06-2011, 12:48 PM

Quote:

Originally Posted by Rob Farmer

I'm dusting down my soapbox as we speak...

I hope somebody has a solution for you otherwise you're going to have to take the gearbox and clutch out.

Rob, Somewhere there is a disconnect in what we are talking about. This chain was developed so you wouldn't have to do what you are saying. In this case they were concerned over clearance. My opinion is there isn't a concern, as thousands have used this chain and not had a issue. If someone has had a issue with clearance using the Iwis chain duplex chain and putting it in as instructed with the clips on the rear I haven't heard of it yet.

Rob Farmer · 03-06-2011, 01:37 PM

JT,

My comments in post 46 are all tongue-in-cheek.

But!

I would have had a similar issues with the clearance on duplex cam chains fitting the split link in from the front, that's why I choose to pull the sprockets. I suspect that r2adv will have a little more clearance once the centre plates fitted in his link but not much.

I've a spare camchain sitting here. 0.966 across the split link and the rollers are split

Lornce · 03-06-2011, 03:35 PM

brentde3 · 03-06-2011, 04:18 PM

Wow, I actually started a helpful thread. That's a first for me.

Thanks for all the info. guys!

Bigger Al · 03-06-2011, 06:16 PM

Quote:

Originally Posted by r2adv

I'm gettin nervous - that's my /6.

No need to be nervous. I've done two chains like this one with the master link, and things turned out just fine both times.

As been said, the center plate needs to be in place between the rows of the chain. That will take care of the clearance issue that you see in your pic. Putting the master link clip on is no picnic, but you can do it.

Relax.

Bill Harris · 03-07-2011, 08:13 AM

As long as we're talking Timing Chains...

Next Summer I need to replace the timing chain and crank sprocket on my /5. Can't find my old 3-jaw puller, so I'll need to get another one. As I recall, I'll need a 3-jaw puller, maybe 5-6" reach and I'll need to fabricate a "crankshaft nose protector piece" for the puller screw to bear against. Do any brands of pullers work better than others?

TIA,

jtwind · 03-07-2011, 10:52 AM

Quote:

Originally Posted by Rob Farmer

JT,

My comments in post 46 are all tongue-in-cheek.

But!

I would have had a similar issues with the clearance on duplex cam chains fitting the split link in from the front, that's why I choose to pull the sprockets. I suspect that r2adv will have a little more clearance once the centre plates fitted in his link but not much.

I've a spare camchain sitting here. 0.966 across the split link and the rollers are split

I was told they were stamping marks but looking close they may well be splits from a formed roller. A older masterlink chain I have shows neither. I haven't heard of failures so must be good?

supershaft · 03-07-2011, 11:00 AM

I haven't saved any old chains to know for sure but that looks new to me as well. I hope it holds up. I do know for sure from experience that not all chains hold up the same. There are some junk chains out there!

Hawk Medicine · 03-07-2011, 11:36 AM

I looked at the photos of that chain a while ago and it didn't look right to me but rather than spouting off, I decided to keep my mouth shut but...

That chain will probably work just fine but I only use real BMW timing chains myself. Go ahead with you installation and get on with your wrenching.

jtwind · 03-07-2011, 12:52 PM

Quote:

Originally Posted by mymindsok

I looked at the photos of that chain a while ago and it didn't look right to me but rather than spouting off, I decided to keep my mouth shut but...

That chain will probably work just fine but I only use real BMW timing chains myself. Go ahead with you installation and get on with your wrenching.

I'm not at all concerned with the chain. It's the Iwis chain that BMW dealers, Hucky's, Siebenrock and the list goes on sells. It's used by Mercedes too, so I just don't think it is or will be an issue.

supershaft · 03-07-2011, 02:16 PM

I am not saying that chain is an issue. That I do not know. I do know for sure that just because a product is made by the same manufacturer that BMW buys their parts from does not mean that it is the same product BMW sells. I have seen that phenomenon play out time after time over the years. I first learned that lesson a long time ago thanks to Capital Cycle.

wirewrkr · 03-07-2011, 03:51 PM

Quote:

Originally Posted by supershaft

. I first learned that lesson a long time ago thanks to Capital Cycle.

I owe my career with BMW Motorcycles to CRAPital Cycles.
I had to return an entire order to them back in 1995 due to every single part being either incorrect, or just such garbage that I couldn't or wouldn't install them on my bike.
I had just moved to the DC area a fewyears earlier( for a 10 year self imposed EXILE ) and a new acquaintance told me about Bobs BMW being just a few miles away, I went, I bought, I was hired.
Easy Peasey.

Xcuvator · 03-07-2011, 04:33 PM

Quote:

Originally Posted by Bill Harris

As long as we're talking Timing Chains...

Next Summer I need to replace the timing chain and crank sprocket on my /5. Can't find my old 3-jaw puller, so I'll need to get another one. As I recall, I'll need a 3-jaw puller, maybe 5-6" reach and I'll need to fabricate a "crankshaft nose protector piece" for the puller screw to bear against. Do any brands of pullers work better than others?

TIA,

I have noticed that not all crank sprockets come off the same. I have an OTC 3 jaw that I use. Some sprockets have needed heating and others haven't. The sprockets that came off withouit heat would have probably come off with a 2 jaw puller. So I guess you need to ask yourself, do you feel lucky?
Seriously though, any puller with at least a 1/2"-12mm (bigger is better) screw will probably work. It would be a good idea to have some kind of torch around, in case it is stubborn.

Bill Harris · 03-07-2011, 09:51 PM

Good, I think any quality 3-jaw puller will work. I'm doing the top end on the bike next Summer and while the heads & jugs are off at the shop I'll do the timing chain and sprocket. I did the chain about 10 years ago, but "on a budget" and the sprocket looked "OK"at the time.

03-06-2011, 01:37 PM	#48
Rob Farmer Beastly Adventurer Joined: Aug 2002 Location: Loughborough, Leicestershire. England Oddometer: 3,739	JT, My comments in post 46 are all tongue-in-cheek. But! I would have had a similar issues with the clearance on duplex cam chains fitting the split link in from the front, that's why I choose to pull the sprockets. I suspect that r2adv will have a little more clearance once the centre plates fitted in his link but not much. I've a spare camchain sitting here. 0.966 across the split link and the rollers are split Rob Farmer screwed with this post 03-06-2011 at 01:58 PM

03-06-2011, 03:35 PM	#49
Lornce Lost In Place Joined: Aug 2003 Location: Way Out There. Oddometer: 15,986	__________________ Across Canada on a '83 R80G/S-PD Across Canada on a '71 R50/5 My Garage Of Doom *Wear The Fox Hat*

03-06-2011, 04:18 PM	#50
brentde3 ^OP Should be outside Joined: Apr 2010 Location: Oneonta, NY Oddometer: 447	Wow, I actually started a helpful thread. That's a first for me. Thanks for all the info. guys! __________________ 2012 Honda NC700X '90 PW50 IBA# 49512

03-07-2011, 08:13 AM	#52
Bill Harris Confirmed Curmudgeon Joined: Sep 2008 Location: backwoods Alabama Oddometer: 3,904	As long as we're talking Timing Chains... Next Summer I need to replace the timing chain and crank sprocket on my /5. Can't find my old 3-jaw puller, so I'll need to get another one. As I recall, I'll need a 3-jaw puller, maybe 5-6" reach and I'll need to fabricate a "crankshaft nose protector piece" for the puller screw to bear against. Do any brands of pullers work better than others? TIA, __________________ '73 R60/5 Toaster

03-07-2011, 11:36 AM	#55
Hawk Medicine Coyote's Brother Joined: Jun 2008 Location: NOR CAL Oddometer: 3,299	I looked at the photos of that chain a while ago and it didn't look right to me but rather than spouting off, I decided to keep my mouth shut but... That chain will probably work just fine but I only use real BMW timing chains myself. Go ahead with you installation and get on with your wrenching. __________________ Hawkdude Hate rots the pocket that carries it.

03-07-2011, 11:00 AM	#54
supershaft because I can Joined: Sep 2010 Location: San Francisco Bay area Oddometer: 6,088	I haven't saved any old chains to know for sure but that looks new to me as well. I hope it holds up. I do know for sure from experience that not all chains hold up the same. There are some junk chains out there!

03-07-2011, 02:16 PM	#57
supershaft because I can Joined: Sep 2010 Location: San Francisco Bay area Oddometer: 6,088	I am not saying that chain is an issue. That I do not know. I do know for sure that just because a product is made by the same manufacturer that BMW buys their parts from does not mean that it is the same product BMW sells. I have seen that phenomenon play out time after time over the years. I first learned that lesson a long time ago thanks to Capital Cycle.

03-07-2011, 09:51 PM	#60
Bill Harris Confirmed Curmudgeon Joined: Sep 2008 Location: backwoods Alabama Oddometer: 3,904	Good, I think any quality 3-jaw puller will work. I'm doing the top end on the bike next Summer and while the heads & jugs are off at the shop I'll do the timing chain and sprocket. I did the chain about 10 years ago, but "on a budget" and the sprocket looked "OK"at the time. __________________ '73 R60/5 Toaster

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