CRF 450 transmission drain plug
whatever
now there aren't any threads left. I was very careful with the '08 plug (I
bought it new a few months ago for $4395 - bam!) and yet I can now feel that
the threads are slightly buggered up. It will only get worse from here.
Anyone else have this problem with the CRF 450's? I realize the solution to
fix the problem is to split the cases but I was hoping some genius here had
a better plan as I am much too important to waste time working on these
pos's.
XR650L_Dave
With sufficient care, I think you can repair without a case-split.
Helicoil, timesert, etc etc.
Are the plug threads getting left behind in the hole, or are the hole
threads stripping out?
I have heard of this happening with aluminum drain plugs, are yours
aluminum or steel?
Dave
whatever
thread for the transmission drain plug is in the right side case. The bolt
goes in from the left side. The bolt is about 3 1/2" long. There's no way
to access the threads.
I'm considering drilling all the way through the case and putting a nut on
the other side.
"XR650L_Dave" <spamT...@yahoo.com> wrote in message
news:309a07ac-7f87-406b...@k4g2000yqb.googlegroups.com...
john
or heli coil the existing hole...
http://www.emhart.com/products/helicoil/heliex/design.asp
use brake cleaner to clean up threads,
then red locktite the heli coil in place
be sure and flush a quart of
oil after taping to flush out any
metal shavings...
john
--
- No trees were killed to make this message. However,
several bushes were hospitalized to make the tagline.
"whatever" <what...@microsoft.com> wrote in message
news:hd23s4$21t4$1...@adenine.netfront.net...
sturd
> I don't think this can be repaired without splitting the cases. The female
> thread for the transmission drain plug is in the right side case. The bolt
> goes in from the left side. The bolt is about 3 1/2" long. There's no way
> to access the threads.
http://www.bikebandit.com/houseofmotorcycles/2004-honda-motorcycle-crf450r/o/m2270
Item 27 in this fiche?
Go fast. Take chances.
Mike S.
JayC
> fix the problem is to split the cases but I was hoping some genius here had
> a better plan as I am much too important to waste time working on these
> pos's.
Not to be a poo, but the solution for your drain plug problem (at
least in the future) is for you to buy a torque wrench, then actually
use it. Drain plug torque is typically somewhere around 12ft-lbs -
just enough to slightly squish the washer. You're probably putting
them on with twice that or more. Also, it doesn't matter that it's a
CRF, you would've ruined the threads on any brand bike.
JayC
Tosk
@l13g2000yqb.googlegroups.com>, j...@sysmatrix.net says...
>
> On Nov 6, 2:31ï¿œpm, "whatever" <whate...@microsoft.com> wrote:
> > Anyone else have this problem with the CRF 450's? ï¿œI realize the solution to
> > fix the problem is to split the cases but I was hoping some genius here had
> > a better plan as I am much too important to waste time working on these
> > pos's.
>
> Not to be a poo, but the solution for your drain plug problem (at
> least in the future) is for you to buy a torque wrench, then actually
> use it. Drain plug torque is typically somewhere around 12ft-lbs -
> just enough to slightly squish the washer. You're probably putting
> them on with twice that or more. Also, it doesn't matter that it's a
> CRF, you would've ruined the threads on any brand bike.
>
> JayC
Guys at the track laugh at me, I use a torque wrench for almost
everything on the bike...
Rowdy Mouse Racing, don't torque me off...
--
Wafa free again.
The Real Bev
> j...@sysmatrix.net says...
>>
>> "whatever" <whate...@microsoft.com> wrote:
>> > Anyone else have this problem with the CRF 450's? I realize the solution to
>> > fix the problem is to split the cases but I was hoping some genius here had
>> > a better plan as I am much too important to waste time working on these
>> > pos's.
>>
>> Not to be a poo, but the solution for your drain plug problem (at
>> least in the future) is for you to buy a torque wrench, then actually
>> use it. Drain plug torque is typically somewhere around 12ft-lbs -
>> just enough to slightly squish the washer. You're probably putting
>> them on with twice that or more. Also, it doesn't matter that it's a
>> CRF, you would've ruined the threads on any brand bike.
>>
> Guys at the track laugh at me, I use a torque wrench for almost
> everything on the bike...
Head bolts only, and I couldn't pull hard enough for the final torque on a 1968
LTD. There are advantages to being a grrl.
> Rowdy Mouse Racing, don't torque me off...
I bet I'm the only one who has a wrench calibrated in furlong-hogsheads.
--
Cheers, Bev
*************************************************
Never argue with a woman holding a torque wrench.
whatever
understand. In the second stripped case, I used a socket connected to a
long extension so that I could thread it by hand. I think the socket was a
bit to thick walled and deflected the bolt just enough to cause a problem.
I threaded it by hand. I realize that seems unlikely but that's what
happened.
Both problems were not due to overtorque but of misalignment. It's really
difficult to get the long drain bolt aligned with the female thread boss all
the way through to the back of the right side case.
You're not a poo. Btw, this is dlevy.
"JayC" <j...@sysmatrix.net> wrote in message
news:9dfd2194-a958-48d2...@l13g2000yqb.googlegroups.com...
whatever
I have to split the cases to get to the thread in the case.
I'm thinking of trying to thread a tap through the hole to repair the
threads, or as we say in Louisiana, the treads.
"john" <n...@this.add> wrote in message
news:XX0Jm.180090$sz1....@en-nntp-10.dc1.easynews.com...
whatever
"sturd" <mikestur...@hotmail.com> wrote in message
news:9692a001-5210-4826...@a31g2000yqn.googlegroups.com...
sturd
>> http://www.bikebandit.com/houseofmotorcycles/2004-honda-motorcycle-cr...
>>
>> Item 27 in this fiche?
>No. That is the engine oil drain plug.
OK, which item is it? I thought you said it *was* the
drain plug.
Elsewhere you say it's an alignment problem. I'm missing
something. It would help if we had a picture.
Tim H
> whatever says:
>
> >>http://www.bikebandit.com/houseofmotorcycles/2004-honda-motorcycle-cr...
>
> >> Item 27 in this fiche?
> >No. That is the engine oil drain plug.
>
> OK, which item is it? I thought you said it *was* the
> drain plug.
In post #3, he refined that to "transmission drain plug". Engine and
tranny are seperate.
Goddamn 4 strokes...
Tim H
Tim H
> Nope, not the answer. It wasn't overtorqued. If you have one you would
> understand. In the second stripped case, I used a socket connected to a
> long extension so that I could thread it by hand. I think the socket was a
> bit to thick walled and deflected the bolt just enough to cause a problem.
> I threaded it by hand. I realize that seems unlikely but that's what
> happened.
>
> Both problems were not due to overtorque but of misalignment. It's really
> difficult to get the long drain bolt aligned with the female thread boss all
> the way through to the back of the right side case.
>
> You're not a poo. Btw, this is dlevy.
Hi David, long time no see.
What do you mean, JayC is "not a poo"? I din't think you've been gone
THAT long.
Tim H
XR650L_Dave
It sounds like a completely assed-up arrangement.
Dave
JayC
>
> Hi David, long time no see.
> What do you mean, JayC is "not a poo"? I din't think you've been gone
> THAT long.
Right. Nice to hear from you again. Levy, I mean...
I do have a CRF250 - but haven't had any issue with the drain bolt. I
do have a slight problem with the "drain on one side and fill on the
other" thing...that's stupid, and yet another reason to use the same
oil in both sides - and dino at that.
You can do the re-thread repair w/o splitting the cases. Be careful
to keep as much of the metal shavings out of the hole, then make a
little tool to wipe and debris out through after you're done. Keep
the bike upright, and any shit will catch in the residual oil and
won't migrate away from the hole. If you do miss a little piece of
trash, odds are that it will find a nice home in some little recess
out of the way in the case and you'll never see it again. If it were
the crankcase, I'd be more nervous, but the tranny can definitely
tolerate some minor debris.
JayC
john
in there??? this might eliminate the future tread chasing
some thing like this???
http://www.summitracing.com/search/Department/Engines-Components/Brand/Aeroquip/
"whatever" <what...@microsoft.com> wrote in message
news:hdcan2$20q6$1...@adenine.netfront.net...
sturd
> > Goddamn 4 strokes...
Seperate crank from tranny fluid, WTF was Honda thinking?
> It sounds like a completely assed-up arrangement.
Indeed. I can't even find that drain on the fiche.
whatever
"john" <n...@this.add> wrote in message
news:1OkKm.190830$ua.2...@en-nntp-05.dc1.easynews.com...
whatever
have to fit through an access hole that is barely larger than the od of the
threads.
It's just a bad design that requires splitting the cases if the threads are
damaged. It is very easy to damage the threads because the female threads
are very far from the actual drain hole. There is no guide for the long
bolt.
"JayC" <j...@sysmatrix.net> wrote in message
news:2ee5b7ff-275f-48ee...@t2g2000yqn.googlegroups.com...
drly...@gmail.com
john
>news:05503e58-942c-43ab...@googlegroups.com...
older honda.
i have also used nutsert, or timesert things on old sports cars that require
hand made parts.
the best repair i have done is weld a 1/4 plate of alluminum over hole and
grind smooth
drill and tap.
john
making a skid/bash plate for the vw this weekend...
The Real Bev
--
Cheers,
Bev
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
"The fact that windows is one of the most popular ways to
operate a computer means that evolution has made a general
fuckup and our race is doomed." -- Anon.
john
"The Real Bev" <bashl...@gmail.com> wrote in message
news:llrqkj$udm$1...@dont-email.me...
a 1/4 plate of alluminum over hole and grind smooth
>> drill and tap.
>john making a skid/bash plate for the vw this
>> weekend...
>
> Are helicoils old hat now?
>
>
> --
> Cheers,
> Bev
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> "The fact that windows is one of the most popular ways to
> operate a computer means that evolution has made a general
> fuckup and our race is doomed." -- Anon.
>
john