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Makotosun
DT3 - Does anything sit behind the blanking plug?
- Gr8uncleal
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DT3 - Does anything sit behind the blanking plug? was created by Gr8uncleal
Having more or less finished my RD125, RD200, RD400, CT1 (well, sort of!) and R5 restos, I thought that I'd resume work on the DT3.
Whilst removing the gearbox sprocket, I noticed that the blanking plug just below it was protruding. It wouldn't re-seat with a gentle tap, so I removed it - and lots of emulsified transmission oil escaped to freedom! Is there really nothing sitting behind this plug, other than about 2-3 inches of void, or am I missing a part?
Thanks.
Whilst removing the gearbox sprocket, I noticed that the blanking plug just below it was protruding. It wouldn't re-seat with a gentle tap, so I removed it - and lots of emulsified transmission oil escaped to freedom! Is there really nothing sitting behind this plug, other than about 2-3 inches of void, or am I missing a part?
Thanks.
26 Jun 2023 08:46
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- Yamfan
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Replied by Yamfan on topic DT3 - Does anything sit behind the blanking plug?
There are usually 2 rubber coated blanking plugs. When the cases were made, its easier to bore right through, when machining the registers which shift drum, and selector forks fit into. The plugs blank the end of these.
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26 Jun 2023 08:51
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Replied by Gr8uncleal on topic DT3 - Does anything sit behind the blanking plug?
Thanks very much.
I know that the transmission oil isn't under pressure, but I was a little surprised when it came out and that the blanking plug might be the only thing retaining it.
I know that the transmission oil isn't under pressure, but I was a little surprised when it came out and that the blanking plug might be the only thing retaining it.
26 Jun 2023 10:09
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Replied by Yamfan on topic DT3 - Does anything sit behind the blanking plug?
The plugs usually only cause problems, after the chain comes off, and damages the part of the case they fit into.
26 Jun 2023 10:21
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- MarkT
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Replied by MarkT on topic DT3 - Does anything sit behind the blanking plug?
I'm surprised you have a void of 2 to 3 inches under the plug... sounds like way too much.
Shift fork shafts (small plug) and shift drum (large plug) should be very near the plug if I remember correctly?
Shift fork shafts (small plug) and shift drum (large plug) should be very near the plug if I remember correctly?
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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26 Jun 2023 16:24
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- RT325
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Replied by RT325 on topic DT3 - Does anything sit behind the blanking plug?
Only one bung in DT3? which sits in the case at the selector drum.
Ok just looked & of course the selector shafts have them too.
If you're looking at a 'void' then you're looking up the hollow inside of the drum--so no problem there. If you look closer you'll see the drum outer edge sitting close to the end of the hole but slightly further in than where the bung sits when its in flush.
Not good if it's a less than tight fit though.
Emulsified oil is just how it looks if you've had it running just prior to pulling the bung out.
Now i'd better go look at my parts cases to see if i'm taking BS haha.
Ok just looked & of course the selector shafts have them too.
If you're looking at a 'void' then you're looking up the hollow inside of the drum--so no problem there. If you look closer you'll see the drum outer edge sitting close to the end of the hole but slightly further in than where the bung sits when its in flush.
Not good if it's a less than tight fit though.
Emulsified oil is just how it looks if you've had it running just prior to pulling the bung out.
Now i'd better go look at my parts cases to see if i'm taking BS haha.
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Replied by Gr8uncleal on topic DT3 - Does anything sit behind the blanking plug?
"I'm surprised you have a void of 2 to 3 inches under the plug... sounds like way too much."
Maybe I'm just used to exaggerating my inches!
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Screwdriver did seem to go in a fair way, mind.
Anyway, the plug fitted back in nice and tight, so we'll see what happens as and when/if I get the old girl fired up and on the move.
"If you're looking at a 'void' then you're looking up the hollow inside of the drum--so no problem there."
Thanks Morley, and that sort of ties in with Mark's reply.
Maybe I'm just used to exaggerating my inches!
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Screwdriver did seem to go in a fair way, mind.
Anyway, the plug fitted back in nice and tight, so we'll see what happens as and when/if I get the old girl fired up and on the move.
"If you're looking at a 'void' then you're looking up the hollow inside of the drum--so no problem there."
Thanks Morley, and that sort of ties in with Mark's reply.
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- RT325
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Replied by RT325 on topic DT3 - Does anything sit behind the blanking plug?
Just edited #6 of course the selector shaft have small bungs--which i didn't think they did.
Anyway--be good to see a pic of yours with drum bung out. Never mind it's back in now.
Must be ok & as it should be as can't go anywhere the other end.
Anyway--be good to see a pic of yours with drum bung out. Never mind it's back in now.
Must be ok & as it should be as can't go anywhere the other end.
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