Rebuilding the LC4 Mechanical Water Pump - a Guide - Page 5

makazica · 03-09-2010, 11:02 AM

Can you post a pic of your pump and possibly the rocker cover?

dog'meat · 03-09-2010, 09:45 PM

Quote:

Originally Posted by Geekventure

So there are 3 O-Rings for the thermostat...

P#31: 0770 320020 O-RING 32.00X2.00
P#33: 0770 021020 O-RING 21.00X2.00 NBR70

If my coolant is coming out of that little hole on the top right side of the head block...

Originally Posted by 666

Which O-Rings do I need to replace...#31(x2) or #33?

That hole is the spark plugs hole crap and water drain

vulture · 03-10-2010, 02:00 AM

Quote:

Originally Posted by makazica

Can you post a pic of your pump and possibly the rocker cover?

Here ya go...

makazica · 03-10-2010, 02:21 AM

The part of the water pump that is marked with the red arrow has to be parallel with the surface marked on the pic (where the head and the rocker cover join).

Seems there is no pin and hole in your case on the water pump, just ignore it and assemble it. The o-rings, sealant and rocker cover bolts should be enough to hold the pump in place.....

Anyone else with their 2 'c??

warewolf · 03-11-2010, 01:56 AM

I wouldn't stress about it. It's obvious your engine doesn't have the locator pin.

vulture · 03-11-2010, 08:13 AM

Yeah I'm not too worried about it, there is only one way for it to go together. Will get it back together tonight if I have time

makazica, thanks a lot for the input...

bluegroove · 04-26-2010, 08:30 PM

I'm doing mine now. I had to replace the shaft because of deep pits and I noticed the new one has a sharp edge where it contacts the seal when driven in. I'm pretty sure this could damage the seal, so I sanded it with some 320. Just enough to take the sharp feel off it.

MC Silverback · 05-06-2010, 11:09 AM

Even if I wuss out, thanks.

Low594 · 09-17-2010, 09:09 AM

Thank you for this guide! Just got my parts ordered thru my clubmate (with shop discount!), but chose to go with VXB Stainless Steel bearings, http://www.vxb.com/page/bearings/PROD/Kit8971

They were $5.95 each, so quite a bit less and should stand a better chance of survival!

They also sell ceramic bearings for it, but at $35 each and not sure about ceramic and hot water, I chose the SS.
http://www.vxb.com/page/bearings/PROD/Kit7654

tedmarshall · 11-11-2010, 02:54 PM

Wonderful tutorial. Thanks. Problem now is I cannot seem to get the rocker cover/valve cover to fit square. It sits up on one end or other, depending which way I push. I've tried to use two rubber mallets to gently tap-tap.

It also was very tricky to get the water pump itself to fit into the smile-shaped elipse in the block. Here I tap-tapped and it did begin to sink down.

Any ideas?

Ted Marshall
2002 LC4e 640 enduro
11,000mi

Sean70 · 11-11-2010, 04:43 PM

Ted everything should go together pretty easy, if a snug fit.
Just keep moving things around but don't force anything.

gunnerbuck · 11-11-2010, 05:22 PM

Quote:

Originally Posted by tedmarshall

Wonderful tutorial. Thanks. Problem now is I cannot seem to get the rocker cover/valve cover to fit square. It sits up on one end or other, depending which way I push. I've tried to use two rubber mallets to gently tap-tap.

It also was very tricky to get the water pump itself to fit into the smile-shaped elipse in the block. Here I tap-tapped and it did begin to sink down.

Any ideas?

Ted Marshall
2002 LC4e 640 enduro
11,000mi

Make sure the engine is spun so the camshaft lobes are facing downward... If they are pointing up contact will be made with the rockers before the valve cover is snug...

Sean70 · 11-11-2010, 05:22 PM

Yep, good advice.

tedmarshall · 11-12-2010, 09:58 AM

Thanks.

Zecatfish · 11-15-2010, 03:30 PM

I'm doing the pump on the 2000 LC4E.
Well I don't think its been apart since new.
The impeller cover bolts was rusty and one made about 2 turns and seized up.

So I would suggest anti-seize be added to the 4 impeller allen head bolts.
Thanks for the write up.

04-26-2010, 08:30 PM	#67
bluegroove Motorcycle junkie Joined: Feb 2008 Location: Sacramento, CA Oddometer: 376	Sand the shaft edge! I'm doing mine now. I had to replace the shaft because of deep pits and I noticed the new one has a sharp edge where it contacts the seal when driven in. I'm pretty sure this could damage the seal, so I sanded it with some 320. Just enough to take the sharp feel off it. __________________ Former Mechanic in Honda and Kawasaki Dealer (eons ago). 38 yrs. of riding and racing dirt and street.

05-06-2010, 11:09 AM	#68
MC Silverback n00b Joined: Jan 2010 Oddometer: 3	Thanks for this guide. Going to possibly save me $400 Even if I wuss out, thanks.

09-17-2010, 09:09 AM	#69
Low594 Adventuring Creep Joined: Oct 2008 Location: Oakland, CA Oddometer: 1,013	Thank you for this guide! Just got my parts ordered thru my clubmate (with shop discount!), but chose to go with VXB Stainless Steel bearings, http://www.vxb.com/page/bearings/PROD/Kit8971 They were $5.95 each, so quite a bit less and should stand a better chance of survival! They also sell ceramic bearings for it, but at $35 each and not sure about ceramic and hot water, I chose the SS. http://www.vxb.com/page/bearings/PROD/Kit7654 __________________ '99 KTM 640 Adventure R *************************************** East Bay Weekly Coffee *************************************** Support your local creep! CREEPS MC

11-11-2010, 02:54 PM	#70
tedmarshall Gnarly Adventurer Joined: Apr 2005 Location: Wilmette, Illinois Oddometer: 377	No Fit Wonderful tutorial. Thanks. Problem now is I cannot seem to get the rocker cover/valve cover to fit square. It sits up on one end or other, depending which way I push. I've tried to use two rubber mallets to gently tap-tap. It also was very tricky to get the water pump itself to fit into the smile-shaped elipse in the block. Here I tap-tapped and it did begin to sink down. Any ideas? Ted Marshall 2002 LC4e 640 enduro 11,000mi

11-11-2010, 04:43 PM	#71
Sean70 Adventurer Joined: Aug 2006 Location: Adelaide, SA Oddometer: 87	Ted everything should go together pretty easy, if a snug fit. Just keep moving things around but don't force anything. __________________ "Good people drink good beer" 2006 KTM 625 SMC

03-09-2010, 11:02 AM	#61
makazica Studly Adventurer Joined: May 2008 Location: Zagreb, Croatia Oddometer: 705	Can you post a pic of your pump and possibly the rocker cover?

03-10-2010, 02:21 AM	#64
makazica Studly Adventurer Joined: May 2008 Location: Zagreb, Croatia Oddometer: 705	The part of the water pump that is marked with the red arrow has to be parallel with the surface marked on the pic (where the head and the rocker cover join). Seems there is no pin and hole in your case on the water pump, just ignore it and assemble it. The o-rings, sealant and rocker cover bolts should be enough to hold the pump in place..... Anyone else with their 2 'c??

03-11-2010, 08:13 AM	#66
vulture Scavenger Joined: Jul 2005 Location: Oregon Oddometer: 107	Yeah I'm not too worried about it, there is only one way for it to go together. Will get it back together tonight if I have time makazica, thanks a lot for the input...

11-11-2010, 05:22 PM	#73
Sean70 Adventurer Joined: Aug 2006 Location: Adelaide, SA Oddometer: 87	Yep, good advice. __________________ "Good people drink good beer" 2006 KTM 625 SMC

11-12-2010, 09:58 AM	#74
tedmarshall Gnarly Adventurer Joined: Apr 2005 Location: Wilmette, Illinois Oddometer: 377	Aaaaaah Thanks.

11-15-2010, 03:30 PM	#75
Zecatfish XTique Rider Joined: Dec 2006 Location: Arkansas USA Oddometer: 7,919	I'm doing the pump on the 2000 LC4E. Well I don't think its been apart since new. The impeller cover bolts was rusty and one made about 2 turns and seized up. So I would suggest anti-seize be added to the 4 impeller allen head bolts. Thanks for the write up. __________________ Google Earth GPS Howto (still a work in progress) use USGS TOPO Maps to layout trails. http://home.windstream.net/catfish/GPS The Early Bird gets the worm, but the second mouse gets the cheese. https://sites.google.com/site/ozarkadventuretours/

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