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Makotosun

Crank seal?

  • type one
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Crank seal? was created by type one

Hi
i was greeted with this on removal of the fly wheel cover on a 68 DT1 ...
crank seal perished?

cheers
T1 Hi
i was created with this on removal of the fly wheel cover ...
crank seal perished?

cheers
T1
DT1's mainly -
x4 1968 US (survivor, shiny resto, MX frame mods & early project)
1968 AUS
1969 Early B front yard ripper
1969 B scabby track bike
1969 B MX project
73 CT3 project
'77 z750 hard tail chop ......
BMW GSA 2018
Last edit: 10 Apr 2021 11:54 by type one.
10 Apr 2021 11:53 #1

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Replied by MarkT on topic Crank seal?

Most likely, yes.
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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10 Apr 2021 21:13 #2

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Replied by asco on topic Crank seal?

Excessive crankcase pressure can be difficult to determine. Is the engine properly vented? Was there excessive oil in the crankcase from being overfilled?

DT1 / RT1 left seals are much tougher than AT1 / CT1 left seals..

a/c
YAMA-LAND RESTORATION,
( 818 ) 521-2109
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1971 CT1-C (BRANDY)
1970 DT1-C (MONICA)
1972 AT2M (ZIFFLE)
1970 CT1-B (HULK)
1971 DT1E (GINA)
1970 CT1-B (CLIDE)
The following user(s) Liked this Post: RT325
Last edit: 11 Apr 2021 15:39 by asco. Reason: Just letters missing in words
11 Apr 2021 15:38 #3

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Replied by turbodan on topic Crank seal?

Grab the flywheel and check the main bearings for play too.  Sometimes that's why the seals go.
The following user(s) Liked this Post: RT325
12 Apr 2021 07:45 #4

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Replied by type one on topic Crank seal?

Thanks guys ... will check ...
cheers
T1
DT1's mainly -
x4 1968 US (survivor, shiny resto, MX frame mods & early project)
1968 AUS
1969 Early B front yard ripper
1969 B scabby track bike
1969 B MX project
73 CT3 project
'77 z750 hard tail chop ......
BMW GSA 2018
14 Apr 2021 12:46 #5

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