B7100 - Excessive Smoking

Marndin

New member

Equipment
B7100
Jun 3, 2017
9
0
0
UK
My B7100 smokes a lot. Does anyone have any suggestions on a quick fix. I seem to remember years ago that there was a substance that you can put into the cylinders that help the pistons seal more?

Here's a link to a video showing the smoke it's much worse under load. There's also smoke comming out of the vent on top of the rocker cover.

Any comments & advice greatfully received - https://youtu.be/7ixWzzCzgUo

Thanks in advance

Martin
 
Last edited:

JerryC999

Member

Equipment
B7100HST
Aug 16, 2014
89
0
6
Simpsonville, KY
Hmm, if that is excessive smoke, then I have a problem as well. You are talking only about bypass smoke, and not any exhaust smoke, correct?

Does it have adequate power?
 

Marndin

New member

Equipment
B7100
Jun 3, 2017
9
0
0
UK
Hmm, if that is excessive smoke, then I have a problem as well. You are talking only about bypass smoke, and not any exhaust smoke, correct?

Does it have adequate power?
It has good power, but when under stress smokes badly. The biggest thing I ommited was that it looses water and overheats.

Many thanks

Martin
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
28,286
4,852
113
Sandpoint, ID
Blown head gasket or cracked head.
And no there is no magic oil or fluid to fix it, it simply needs taken apart and rebuilt. ;)
 

85Hokie

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Staff member
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Equipment
BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
Jul 13, 2013
10,269
2,104
113
Bedford - VA
I would agree with wolfman,coolant loos is bad enough and repeatedly overheating is just destroying the engine.
I too 3rd that notion.......and running it as is....will cost more to fix!
 

murky

Member
Mar 30, 2012
107
0
16
Vancouver, WA
My B8200 smoked like that. It had a crack in the head. I bought a rebuilt one and had it installed by a Craigslist mechanic. Then did my own valve adjustment which apparently he overlooked.