Clutch/waterpump cover question
Clutch/waterpump cover question
Did Honda move the drain on the waterpump cover sometime between 86 and 93? cause on my new 93 Right sidecover there is nowhere for my coolant drain bolt to go through,it goes through the waterpump cover but straight to the gasket sealing surface,I thought the pump cover was the same through all the years but It seems like I need a new pump cover as well?

1994 Heartless CR500R
1986 KX500
- dannygraves
- Posts: 8020
- Joined: June 1st, 2007, 2:03 pm
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- Location: Las Vegas, NV
that cover is the same. the hole is like halfway covered with gasket, so if you use anything other than a regular gasket (rtv, etc) it might cover the rest of the hole.
'09 kx450f 4-Poke
Gen-4 trail bike --SOLD--
Gen-3 badass trail/mx bike --SOLD--
Gen-1 built dunes bike --SOLD--
'05 klx110 --SOLD--
'95 pw80

Gen-4 trail bike --SOLD--
Gen-3 badass trail/mx bike --SOLD--
Gen-1 built dunes bike --SOLD--
'05 klx110 --SOLD--
'95 pw80

well if thats the case honda majorly screwed up on this rightside cover because when I put the waterpump cover on there is nowhere for the drain bolt to go,on my 86 sidecover the drainbolt goes through the waterpump cover and in the rightside cover it is cut away around that area which is the smallest sealing surface for the gasket but on this new cover it is totally different,unless my 86 cover is extremly worn in that area?I'll take a pic tonightdannygraves wrote:that cover is the same. the hole is like halfway covered with gasket, so if you use anything other than a regular gasket (rtv, etc) it might cover the rest of the hole.

1994 Heartless CR500R
1986 KX500
- dannygraves
- Posts: 8020
- Joined: June 1st, 2007, 2:03 pm
- Last active:
- Location: Las Vegas, NV
uuummmm, the drain bolt isn't supposed to go through! its a short maybe 10mm long bolt that only goes in the cover. sounds like your old '86 side cover got nigyvered!
'09 kx450f 4-Poke
Gen-4 trail bike --SOLD--
Gen-3 badass trail/mx bike --SOLD--
Gen-1 built dunes bike --SOLD--
'05 klx110 --SOLD--
'95 pw80

Gen-4 trail bike --SOLD--
Gen-3 badass trail/mx bike --SOLD--
Gen-1 built dunes bike --SOLD--
'05 klx110 --SOLD--
'95 pw80

ya on my 86 the bolt goes right through,the sealing surface on the right cover is only as wide as the gasket is in that area,the bolt could go right in there,so the bolt should only be as long as the hole in the pump cover thendannygraves wrote:uuummmm, the drain bolt isn't supposed to go through! its a short maybe 10mm long bolt that only goes in the cover. sounds like your old '86 side cover got nigyvered!


1994 Heartless CR500R
1986 KX500
- dannygraves
- Posts: 8020
- Joined: June 1st, 2007, 2:03 pm
- Last active:
- Location: Las Vegas, NV
- iggys-amsoil
- Posts: 3602
- Joined: June 1st, 2007, 6:09 pm
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- Location: Just North of March Airfield CA
Side note; I discovered last month that the 450's don't have a drain plug on there cover. Looking closer one of the main bolts that holds the cover on doubles as the drain plug.
There is a passage way casted into the cover for draining. Then I found the gasket under the bolt.

Trinity Racing mild porting FMF
62 pilot, EGH needle, 172 main
03 Gen III CR250 frame
2013 Dodger Charger 5.7 Hemi
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Your Amsoil Customer # 350882
62 pilot, EGH needle, 172 main
03 Gen III CR250 frame
2013 Dodger Charger 5.7 Hemi
http://www.prisonplanet.com
Your Amsoil Customer # 350882