Jump to content

Tech Spam thread - because 1/4" BSP gets 5 hand spans to the jiggawatt


Roman
 Share

Recommended Posts

  • Replies 4.6k
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Can a 5 rib poly-v belt be too tight and damage the alternator bearings or something? Or are the bearings stronger than the belt?

I am running an alternator only setup on my 1UZFE, so there is no tensioner. An internet person recommended a gates stretch-fit belt of a particular size that fits.

I looked up the special tool used to install the stretch-fit belts then made do with random stuff that was the appropriate shape.

I got the belt on, but it's pretty dang tight. Should I be concerned for my alternator?

Link to comment
Share on other sites

TV/Stereo question here - Old house was running a regular UHF aerial, direct to the TV and TV audio through optical output to the amp. 

New house has a dish, and have got that dialed in with the same setup. What we're finding however, is the volume is needing to be approximately double what it was in the old house, to achieve the same sound at our ears... Is this purely down to the quality of the broadcast/reception via dish vs UHF?

Sound being played ex-dvd or via phone inputs requires only the same volume setting as at the old house.

Link to comment
Share on other sites

2 hours ago, Alfashark said:

TV/Stereo question here - Old house was running a regular UHF aerial, direct to the TV and TV audio through optical output to the amp. 

New house has a dish, and have got that dialed in with the same setup. What we're finding however, is the volume is needing to be approximately double what it was in the old house, to achieve the same sound at our ears... Is this purely down to the quality of the broadcast/reception via dish vs UHF?

Sound being played ex-dvd or via phone inputs requires only the same volume setting as at the old house.

Dumb question, but is there a seperate volume control on the Sat receiver that is turned down?

Link to comment
Share on other sites

On 02/10/2021 at 10:08, tortron said:

anyone who has ordered through amayama

 

if they say something is temporarily out of stock/delayed after you order it, is it likely to be found in stock? or should i just flag it and accept the rest of the stuff

wow, well in my case they did find them and they are now on their way

Link to comment
Share on other sites

yeah i imagine its a tricky system to keep entirely up to date when theres dusty parts sitting on shelves for 30 years

 

better than any nz company i have bought from who will take your money, you send them emails and phone calls for a month before they say its out of stock

  • Like 2
Link to comment
Share on other sites

On 06/10/2021 at 14:20, Adoom said:

Can a 5 rib poly-v belt be too tight and damage the alternator bearings or something? Or are the bearings stronger than the belt?

I am running an alternator only setup on my 1UZFE, so there is no tensioner. An internet person recommended a gates stretch-fit belt of a particular size that fits.

I looked up the special tool used to install the stretch-fit belts then made do with random stuff that was the appropriate shape.

I got the belt on, but it's pretty dang tight. Should I be concerned for my alternator?

Bit ling, but my old 4AGE corolla just had a belt from the crank to the power steering with no tensioners. Was pretty damn tight and never gave me any trouble in the 3 or so years I owned it

Link to comment
Share on other sites

14 minutes ago, ajg193 said:

Bit ling, but my old 4AGE corolla just had a belt from the crank to the power steering with no tensioners. Was pretty damn tight and never gave me any trouble in the 3 or so years I owned it

Prob cos the power steer pump moves 

  • Like 2
Link to comment
Share on other sites

On 06/10/2021 at 14:20, Adoom said:

Can a 5 rib poly-v belt be too tight and damage the alternator bearings or something? Or are the bearings stronger than the belt?

I am running an alternator only setup on my 1UZFE, so there is no tensioner. An internet person recommended a gates stretch-fit belt of a particular size that fits.

I looked up the special tool used to install the stretch-fit belts then made do with random stuff that was the appropriate shape.

I got the belt on, but it's pretty dang tight. Should I be concerned for my alternator?

Is it possible to make the alternator moveable like most things?

Link to comment
Share on other sites

10 hours ago, JustHarry said:

Is it possible to make the alternator moveable like most things?

In theory, yes. But I don't think it's advised because the mounts are single shear when most pivoting alternators are double shear.  In my scenario, I don't have the clearance to move it anywhere.

Some people make a bracket to mount an adjustable idler pulley. But this "stretch fit" belt is by far the easiest option. I just don't want to find that it is possible to be too tight and damage the alternator bearing.

I tried looking up multi-v belt tension specs, but they required specialist measuring tools. 

Link to comment
Share on other sites

Moving my dog and bone discussion here rather than filling spam with spam...

@locost_bryan I found more info. But I'd still like to know why we cant get it, especially as there's loads of spare cables available for use between the exchange and our valley. I'm wondering if its the distance @3.5km which VDSL cant work with?

From electronicsforu.com......

'Digital subscriber line (DSL) technology offers high-speed Internet service for homes and offices over telephone lines. It is unique because you can use the Internet and make telephone calls at the same time. A DSL system separates telephone signals into three frequencies bands: lowest band for telephone calls, and other two for uploading and downloading online activities.

There are two types of DSL: asymmetric digital subscriber line (ADSL) and symmetric digital subscriber line (SDSL). If data throughput in upstream direction (towards service provider) is lower, it is ADSL. In SDSL service, both downstream and upstream data rates are equal.

Bit rate of DSL services (downstream) typically ranges from 256kbps to over 100Mbps, depending on DSL technology, line conditions and servicelevel implementation.

Very-high-bit-rate digital subscriber line (VDSL) and very-high-bit-rate digital subscriber line 2 (VDSL2) technologies provide data transmission faster than ADSL. These can also be deployed over existing wires used for analogue telephone service.

VDSL offers speeds of up to 52Mbps downstream and 16Mbps upstream, and is capable of supporting applications such as high-definition television (HDTV), telephone services (voice over IP) and general Internet access, over a single connection.

VDSL2 (second-generation system) uses frequencies up to 30MHz to provide data rates exceeding 100Mbps, simultaneously in both upstream and downstream directions.

ADSL technology covers a larger distance than VDSL. It supports only asymmetric data and plain old telephone (POT) service, while VDSL supports asymmetric, symmetric data and pots.

 

Link to comment
Share on other sites

@Kiwibirdman Thanks. We had a different technician come out for a look and he was super helpful, happy to explain how it all works etc. He said as much as you- its a distance thing. At 3.5km from the exchange we are just too far for VDSL to work plus he said our copper line is a slightly older grade which is not as efficient.

Fuck he had some cool machines to test things with. Good news is that its way better now (well... if you can call 3 or 4 MB per sec good. But it is for us.

Tractor porn and nissan micra tuning videos here I come....

  • Like 7
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...