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Question In search of DT360 right side crank seal

  • nealbob
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I just introduced myself a few minutes ago so I thought I should post this in a differnt catagory.Does anyone know a possible source for part# 93103 38086 00.Alas, I have high pressure at the oil cap hole while kicking over and no start with good spark and fuel present.
03 Dec 2021 12:17 #1

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Replied by MarkT on topic In search of DT360 right side crank seal

Check with Enduronut or DEET. 
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
03 Dec 2021 12:20 #2

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Replied by Gr8uncleal on topic In search of DT360 right side crank seal

If no luck with EN or DEET, there are some on fleabay.

A good quality bearing supplier might also have them - see attached link to a company in the UK. I would be interested in the experts' views on using an aftermarket part such as this.

Search Results: - Simply Bearings Ltd
03 Dec 2021 12:32 #3

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Replied by RT325 on topic In search of DT360 right side crank seal

Not common for the 360 to push the crank seal out but 'does' sound conclusive in your case. You could set the piston at the bottom & pressurize the trans breather tube & see if you can hear it down the plug hole. Or carb & reed block off & piston at top, that'd work & hear it via the inlet. I've never needed to do that but just clutching at random ideas.
Last edit: 03 Dec 2021 14:29 by RT325.
03 Dec 2021 14:27 #4

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Replied by Schu on topic In search of DT360 right side crank seal

"Not common for the 360 to push the crank seal out"

I was surprised when it happened on my DT360. Surprised because it actually bent the seal retainers!
 
Schu

CT1B, CT1C, JT1, JT2, DT360A, GT80B, DT100B, DT125B,
DT175B, DT175C, DT250B, DT400B, Z50, SCR950

Someday, you'll own some Yamahas
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Last edit: 03 Dec 2021 14:48 by Schu.
03 Dec 2021 14:47 #5

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Replied by MarkT on topic In search of DT360 right side crank seal

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
03 Dec 2021 16:29 #6

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  • msavitt
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Replied by msavitt on topic In search of DT360 right side crank seal

careful about buying transmission seals from buzzards that put these on eBay next to a Yamaha label
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03 Dec 2021 18:02 #7

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Replied by RT325 on topic In search of DT360 right side crank seal

An event like SCHU in post #5 can happen if there's an explosion in the crankcase or even a belly full of fuel & a good kick. Or ignition crank key broken & timing then anywhere but right so fires up whats in the crankcase & seal escapes under pressure. Anyway--new seal & onwards & upwards. Hope the left one is still i place but right escaping probably saved the left side.
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03 Dec 2021 19:02 #8

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Replied by hackman101 on topic In search of DT360 right side crank seal

@Msavitt, I bought a set of gaskets for my 73 MX250 from Bike Buzzard. I have not opened the pack yet, and I have had them for a while now. I presume there may be an issue with what he sells?
1973 MX250
Past rides 45 years ago (and longer)
1964 Honda 50cc C110
1960s Yamaha 65cc scooter
1960s Honda 65cc w/ 90cc engine mashup
1971 DT1-E modified to MX kinda...
03 Dec 2021 23:47 #9

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Replied by msavitt on topic In search of DT360 right side crank seal

Hackman101 - to be clear I was not referring to the person you mention, who I have bought from without issues.  I used buzzard as a pejorative - like bottom-feeder, scavenger, etc.
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04 Dec 2021 09:34 #10

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