Author Topic: Culprit: Input shaft bearing sounds with videos / Taking photo & Video Requests  (Read 2886 times)

guest7581

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A few weeks ago, my 2004 Honda Jazz 1.4 manual transmission was making a concerning sound (see link below). After getting excellent advice here and watching lots of youtube video's, i concluded that it was the input shaft bearing. I have the tranny pulled and am now rebuilding with a bearing kit. I have included a video (see link below) of what the culprit (bad input shaft bearing) sounds like.

While i have the tranny apart (for the next day), i am taking photo & video request from anyone that needs them, just reply to this thread.

Sound when driving:

https://www.dropbox.com/s/ysjaxx6v3enkhb6/Honda%20Noise.mp4?dl=0

Bad input shaft bearing with tranny open:

https://www.dropbox.com/s/gvnvlzpxfzpp67i/bad%20input%20shaft%20bearing.mp4?dl=0

sparky Paul

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Nice post  8)

That input shaft bearing has certainly had it! Any chatter from any of the other bearings?

guest7581

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Thanks.

So, the only other bearing that sounded sort of bad was on the opposite side of the main shaft (see pics). Either way, i am replacing all bearings and seals.


sparky Paul

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If you intend keeping the car, it seems daft not to do the whole lot while you're in there. Those two input shaft bearings always seem to be the main suspects, I guess that's why they sell the mini-kit with just the two bearings and a few seals.

From what I've seen of the drawings and various videos of Jazz/Civic gearbox rebuilds, it looks a pretty straightforward gearbox to work on.

guest7581

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If you intend keeping the car, it seems daft not to do the whole lot while you're in there. Those two input shaft bearings always seem to be the main suspects, I guess that's why they sell the mini-kit with just the two bearings and a few seals.

From what I've seen of the drawings and various videos of Jazz/Civic gearbox rebuilds, it looks a pretty straightforward gearbox to work on.
I ordered a 7 bearing kit with seals and a tube of RTV... I'm trying to work the main shaft bearing and that blind bearing out of the case with heat... with no luck... any tricks you can recommend?

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sparky Paul

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Heat is great for removing bearings from shafts, but if it's stuck in a blind hole you have the opposite problem. I've even used freeze spray before, freezing the bearing thoroughly before having a go at it.

If you have, or can borrow, an internal bearing puller and a slide hammer, that's the way to go. There are a few types I've used successfully, the expanding arbor type work well, and there is another type of kit which grips the inner and outer race with clipped ball-shaped inserts.

The shock from the slide hammer normally works a treat.

If you haven't got anything similar, you can improvise something. Make up a slide hammer if you don't have one, then make an implement that will be able to grip on the rear face of the bearing - maybe a piece of scrap round bar, slightly smaller than the shaft diameter, with a slot ground into one side to make a lip to pass through and grip on the rear of the bearing. An 1/8 of an inch lip on a steel bar should be able to pull it out of an aluminium casting.
« Last Edit: April 16, 2018, 12:21:25 PM by sparky Paul »

guest7581

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Heat is great for removing bearings from shafts, but if it's stuck in a blind hole you have the opposite problem. I've even used freeze spray before, freezing the bearing thoroughly before having a go at it.

If you have, or can borrow, an internal bearing puller and a slide hammer, that's the way to go. There are a few types I've used successfully, the expanding arbor type work well, and there is another type of kit which grips the inner and outer race with clipped ball-shaped inserts.

The shock from the slide hammer normally works a treat.

If you haven't got anything similar, you can improvise something. Make up a slide hammer if you don't have one, then make an implement that will be able to grip on the rear face of the bearing - maybe a piece of scrap round bar, slightly smaller than the shaft diameter, with a slot ground into one side to make a lip to pass through and grip on the rear of the bearing. An 1/8 of an inch lip on a steel bar should be able to pull it out of an aluminium casting.
Ok... that's good to know... hopefully I can find some freeze spray.... I've attached a tool I fabricated from an Ikea bar and part of a bicycle bottle holder... Lol. Switzerland is such a pain in the ass to find car tools. Anyway, thanks for the advice... keep you posted.

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guest7581

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The reason i used heat is because of this video:

guest7581

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what do you think about this tool (photo attached)? Ever use one?

sparky Paul

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what do you think about this tool (photo attached)? Ever use one?

I've never use one of those. I've seen them, and the principle is sound - it's just a standard sort of puller that is made to fit through a bearing.

If it will fit through the bearing, it may well work perfectly pulling from an aluminium casting. However, if it turns out to be stubborn, I always prefer something I can attach a slide hammer to. Don't underestimate the power of the hammer thump!

Heat is generally good, it expands metals, but it can get a little more unpredictable when dissimilar metals are involved. One advantage of getting something like a bearing hot is that when it expands, any corrosion between surfaces tends to crack, making removal easier, even after it's cooled again.
« Last Edit: April 16, 2018, 01:15:10 PM by sparky Paul »

guest7581

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what do you think about this tool (photo attached)? Ever use one?

I've never use one of those. I've seen them, and the principle is sound - it's just a standard sort of puller that is made to fit through a bearing.

If it will fit through the bearing, it may well work perfectly pulling from an aluminium casting. However, if it turns out to be stubborn, I always prefer something I can attach a slide hammer to. Don't underestimate the power of the hammer thump!
I agree...

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guest7581

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Although i did use my fabricated tool and a heavy hammer and it didn't budge.... looks like i have to order a slide hammer and try and find some freeze spray :P

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