Any automotive mechanics out there?

> 10 years ago
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Chris_M
Chris_M
2132 posts
2132 posts
24 May 2015 9:03am
Hey All,

Just wanting to know if my mechanic is about to rip me off...... (yeah I know)

My starter motor has been making a horrible sound (like a spoon down an insinkerator) sometimes on startup.

Mechanic says its the ring gear that is making the sound, and it needs to be replaced.

He reckons to do this he has to remove the gearbox which will take 7 hours labour.

My vehicle is a 93 Hilux Surf Diesel.


I will need to get the work done regardless, but just wanting a second opinion before I book in with him. 7 hours seems like a long time to take out a gearbox, but since I know nothing about mechanics I thought I'd ask you lot.

Cheers

Chris

PS could the rebuilt ECU be at fault, causing the stripping of teeth on the ring gear? I noticed that as soon as my computer was rebuilt a few months ago the problem started.... or just another unlucky conicidence?
kiteboy dave
kiteboy dave
QLD
6525 posts
QLD, 6525 posts
24 May 2015 11:31am
Not the ECU, that much is clear.

7 hours seems legit if the there's some quirks in getting to it. I did one once in old escort and IIRC it involved freeing the engine and jacking it up & out a bit to be able to remove g/b. PITA

/not a mech
mineral1
mineral1
WA
4564 posts
WA, 4564 posts
24 May 2015 9:44am
Chris, yep 7 hours has a bit of fat in it, but he has to make a $, and if you trust him then it should be jake.
Just had my gearbox done, and labour was from a dedicated gearbox place a little less than that, but they were chasing the box rebuild as business, so hours to remove and install, plus fit up a new clutch kit and skim flywheel.
Now in saying that, the ring gear must be real shot for him to need to replace it, but age of vehicle my be contributing factor
To do this he will need to pull flywheel, remove old ring gear, heat the new and shrink fit to your current flywheel, so box and clutch kit out first to do.
Just for peace of mind, when he gets it ready to do and pulls the starter motor, fit the replacement "first" and test, before anything else is removed.. Its not hard to test and three bolts, plus cable remove and install. Be a pain in the you know what to find out all you really needed to do was just the starter.
sn
sn
WA
2775 posts
sn sn
WA, 2775 posts
24 May 2015 2:01pm
^ wot Mins said,

Drop the starter motor first and have a look at the cog to see if it's teeth are worn out,

Even easier- most vehicles have a pressed sheet metal guard bolted under the bell housing- in front of the gearbox.

Undo a couple of bolts, and look at the ring gear yourself [might need a decent torch and mirror]

You will need to turn the motor over so you can check out all of the teeth.

stephen
port
port
VIC
446 posts
VIC, 446 posts
24 May 2015 5:27pm
Sounds about right fair amount of work involved fair chance the starter motor drive gear will be shagged as well.
Mark _australia
Mark _australia
WA
23695 posts
WA, 23695 posts
24 May 2015 3:48pm
And while he is in there, may as well do clutch, thrust bearing and spigot.
elmo
elmo
WA
8895 posts
WA, 8895 posts
24 May 2015 3:51pm
bugger it just buy a new car.

The boat probably needs upgrading as well
Chris_M
Chris_M
2132 posts
2132 posts
24 May 2015 4:03pm
Cheers for the replies fellas.

Since I don't know much about mechanics I'm gonna have to trust him, other jobs he's done have been reasonably priced and I have been happy with the quality of the job. I thought I'd better ask about this one because it was a real surprise as I had only expected the job to be a couply of hundy.

Elmo, I agree with you but am in that predicament where it is still a slightly better option to repair a car I have had for 4 years and know it's service history than go buy another cheap car that could come with a whole raft of hidden problems.

The wife is slowly getting around to setting up her own business, so once that happens (next couple of years) we will buy a couple of cars for the business which I'll use.


Thanks for taking the time to reply :)
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