Getting ready to drop $20,000 on engine overhaul

[93097004xx]

Wow I can't believe these responses!

I'm grateful but having a hard time understanding how this could be.




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[RDG]

I may have missed something but I think the thing is this, Most people don't consider a rebuild unless there's a problem causing you to do so or your looking for more power. In my case I had some broken head studs and a stuck cluch that started the whole thing, then you get to the well while I'm in here stuff. And like all have said the lower end of these engines are very durable, you would need a very good reason to go past the rod bearings in a rebuild, low oil pressures being one. It would be best to start with a leakdown test and see where your at, Does the car smoke, loss of power, extreme valve noise, just watch out because it can become a slippery slope. At the end of the day it's your car and you must do what makes you happy no matter what someone on the internet says..

[93097004xx]

Here you guys go.

I have not stated this car in about 3 months.

First start up

https://www.youtube.com/watch?v=Co-5ZqhTEas

Idle first 3 minuets

https://www.youtube.com/watch?v=h7FnOeNNSBM

Idle 10 minuets

https://www.youtube.com/watch?v=h2qM98KwycA

Warm engine reving

https://www.youtube.com/watch?v=5MyomLpvfX8




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[Ferraripete]

if you were a seller and I were a prospective buyer. when you told me your 50k mile car had an engine rebuild, I would thank you for your time, head back to my car and keep looking. I have owned 3 930's and two, I drove the holy schit out of. none ever needed a rebuild.

[Jeff NJ]

First, I think it sounds great and idles great. No idea why you would need to do a bottom end. What's wrong with the top end? I'd ask if it burns oil, but you change it before it has a chance to burn.
Second, I hope you opened a door! That's a long time to be dumping CO into your garage with the doors closed.

Rarlyl8 is correct. Drive the car. Spend some time with it. I wouldn't do a thing but drive it if I were in your shoes. Waiting until the top or bottom end fails will not appreciably increase your rebuild cost, so what are you hoping to achieve.

Report back after you put about 2000 miles on it this spring and let us know how much oil it burns.

[1979-930]

Originally Posted by kevin930t

I agree 100%,find a good charity if u want to blow 20g..

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Good idea. It costs $5,000.00 in adoption fees to get a child out of the foster system and adopted. You could save four kids.

I save one a year. Find a local adoption assistance charity and help.


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[Mick_D]

you put 1700 miles on it in 22 years,k and you want to rebuild the whole thing? Well, you do change the oll every 100 miles. I think that's just insane.

[T77911S]

Originally Posted by Ferraripete

if you were a seller and I were a prospective buyer. when you told me your 50k mile car had an engine rebuild, I would thank you for your time, head back to my car and keep looking. I have owned 3 930's and two, I drove the holy schit out of. none ever needed a rebuild.

would not bother me.
also depends on who did it.
it was not uncommon for low miles cars to get engine rebuilds.
people with too much money and they did not drive them.
I think one of the reasons for rebuilds is oil leaks from not driving.
I bought a 40k mile car and can look back at all the receipts for parts fixing oil leaks from sitting.
my brother has 140k on his, no oil leaks.
they need to be driven

[RarlyL8]

Wow I can't believe these responses!
I'm grateful but having a hard time understanding how this could be.

Most folks need a really good reason (like a rod hanging out of the block) to rebuild an engine. We see no good reason here. I'm still not sure why you think a rebuild is in order. Keeping this time capsule 100% unmolested would preserve the value I would think. Part of what we do is rebuilding engines, I can't see an honest mechanic recommending you do this unless there is something we don't know.

[boosted79]

"It's bar 4.5 at cold idle settles to bar 2 if the engine is extremely warm on a 90 degree day I can see bar 1.5"

Your oil pressure is great, don't split the case unless the seam is leaking and you can't live with that. If you insist on replacing the mains I'll take the originals off your hands for $100.

[93097004xx]

Originally Posted by RarlyL8

Most folks need a really good reason (like a rod hanging out of the block) to rebuild an engine. We see no good reason here. I'm still not sure why you think a rebuild is in order. Keeping this time capsule 100% unmolested would preserve the value I would think. Part of what we do is rebuilding engines, I can't see an honest mechanic recommending you do this unless there is something we don't know.

I guess I just figured to get it out of the way before rebuilds get so expensive I have to leverage my house or the 930. That would not be a option as I would not sleep at night knowing some slimy bank had the title to my 930.

I guess fear of ever increasing cost of overhauls. The piece of mind knowing that if I ever did decide to really give full throttle acceleration (Led Zeppelin is responsible 100% of the time and the fact it feels so damn good when the boost hits) it would not go POP. Then I would have to find a ledge to jump off of lol.

[Tippy]

I hate to say it, but I think your mechanic is trying to take you.

I pulled my 3.2 (same engine as your 3.3) down that had been boosted for years (at 1.2 bar), and the bearings looked brand new. It had no gouges or grooves.

The cam sprockets were worn out and the IMS bearings showed some wear, but everything else was pristine.

The speedo broke at 105k miles, so no idea of actual mileage.

Point is, there's no need to rebuild it, unless major oil leaks or bad leak down numbers.

At $20k, he's almost pocketing all the money as the parts will require very little machining at that mileage.

Seriously.

I'd get a 2nd opinion.

[boosted79]

At your present average annual mileage you can start thinking about the bottom end in 600 years.

[Rodsrsr]

To the OP. Your not dealing with a small block Chevy.

[Alexm930]

Originally Posted by boosted79

At your present average annual mileage you can start thinking about the bottom end in 600 years.

I just fell off my chair laughing....

[Mick_D]

You can't schedule a rebuild for when YOU want it. You have to schedule a rebuild for when the car needs it. This car does not need it. You don't need to change the oil every 100 miles, either. That's incredibly wasteful!

[Tippy]

Originally Posted by Mick_D

You can't schedule a rebuild for when YOU want it. You have to schedule a rebuild for when the car needs it. This car does not need it. You don't need to change the oil every 100 miles, either. That's incredibly wasteful!

Not really, he's using Castrol after all.....

[Tippy]

Originally Posted by Rodsrsr

To the OP. Your not dealing with a small block Chevy.

Never a truer statement. These motors are robust but expensive to rebuild and take a lot of time.

You have to 'really' need an overhaul before doing one.

It's just a lot of work and $$$$

[93097004xx]

Ok I'm 50/50 this.

You guys have got me thinking twice.

Some things I left out..

Firstly my mechanic is truly one of the most knowledgeable 930 specialist in the Midwest.

He had rebuilt many 930 and few 934/ 935s.

Extremely knowledgeable with these cars I mean he has been a 930 specialist for 30 years +.

He has known this very car for 25 years. Rebuilt the transmission on this car replaced the clutch, head studs R&R the ENTIRE csi fuel injection system, R&R the Brakes, ect this car has $21,000 in receipts from him since the late 1980s.

Ok why I want to do this? I'm 40 years old and might have the car another 8/10 years. I want to enjoy it as it was meant. To be driven like a porsche 930.

My biggest concern right now are the JUNK GLYCO rod bearings. He is not going to use GLYCO as he stated they are very poorly made and not suitable. He is instant on using ARP bolts.

Anyhow I want my engine to sound as good as my car looks. I don't mind saying I have a very very nice ROW 930. It took me 20 years and $$$$$. With this engine overhaul my car will essentially be totally R&R'd and it can be enjoyed as a 930 that has been driven off the showroom. Which is what I always dreamed of.

[Jeff NJ]

My opinion: your thought is to pre-empt a blown motor by rebuilding it before it needs it because if it does blow down the road, the costs may go up to where you cant afford it. I get that. However, waiting a year or two isn't going to dramatically change the costs of a rebuild. Drive the car now. Put a few thousand miles on it. Push it. Spend some time on boost and enjoy what you have. If the motor is about to grenade, and does, you are then spending the $20k you want to spend today in the next year or two and you are no worse for wear. If it doesn't and all is well, you have saved $20k.

Take your $20k and put it in some sort of investment vehicle so that it appreciates and if you need to spend $30k in 7 or 8 years, you have the money already. If you sell before it needs a rebuild, that $20k saved is the same as $20k earned (actually more if you invest it).

I guess I just don't see the risk of waiting if the motor is healthy today. You can and should enjoy the 930 as you want to right now.