Opinions - CorvetteForum - Chevrolet Corvette Forum Discussion

C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette


Old 10-10-2018, 09:56 AM
Junior Member
Thread Starter
Onewiththecake's Avatar
Member Since: Nov 2017
Location: Fort Lauderdale Florida
Posts: 18
Thanked 1 Time in 1 Post
Default Opinions

Well, I've been informed that I have a spun main bearing. I encountered a knocking sound a while back that I was hoping would be the fuel pump or possibly a loose timing chain, but upon inspection of the crank (which is grooved), it appears to be a main bearing.

So, for the past month or two, the car has sat under a cover in my driveway. I've purchased a crate motor that I will be installing shortly, so that I can take the original out and rebuild it properly.

My question is: how bad would it be to drive the car to the shop where I'll be replacing the engine? I've heard the horror stories of the potential damage spun bearings can create, but I'd rather not pay to haul it if I don't have to. The engine still starts and idles fine, with the exception of a knock developing around 1500 rpm.

Here's a picture of the crank, taken by my mechanic.

Last edited by Onewiththecake; 10-10-2018 at 10:00 AM.
Onewiththecake is offline  
Old 10-10-2018, 10:12 AM
CF Senior Member
Rodnok1's Avatar
Member Since: Sep 2016
Location: NC
Posts: 2,042
Thanked 75 Times in 66 Posts

If you were tossing the engine I'd say drive it but since a rebuild is planned have it towed. Think of it this way, for the tow cost you could easily create more damage that would far exceed that cost by driving it.
Rodnok1 is offline  
The Following User Says Thank You to Rodnok1 For This Useful Post:
v26278 (10-14-2018)
Old 10-10-2018, 10:40 AM
71 Vert LS1
CF Senior Member
Member Since: Sep 2010
Posts: 332
Thanks: 0
Thanked 34 Times in 34 Posts

The down side to driving it is that it could go 10 feet or 10 miles. If you "breakdown" in traffic does your car insurance pay for towing?
71 Vert LS1 is offline  
Old 10-10-2018, 11:04 AM
CF Senior Member
CanadaGrant's Avatar
Member Since: Apr 2006
Location: Blind Bay BC
Posts: 3,512
Thanked 223 Times in 201 Posts

Since you are rebuilding the original engine, I wouldn't drive it. You said you have a mechanic doing this so putting the engine together again to make it driveable to the rebuild shop would cost just as much or more than the tow.
CanadaGrant is offline  
Old 10-10-2018, 12:07 PM
CF Senior Member
jim-81's Avatar
Member Since: Dec 2011
Location: Chardon Ohio
Posts: 1,225
Thanked 57 Times in 53 Posts

If you're concerned about the cost of towing, check into your insurance. I know Nationwide has free towing (not sure of distance) and I have used it many times.
jim-81 is offline  
Old 10-11-2018, 01:06 PM
Junior Member
Thread Starter
Onewiththecake's Avatar
Member Since: Nov 2017
Location: Fort Lauderdale Florida
Posts: 18
Thanked 1 Time in 1 Post

Okay, looks like I'll be towing it then. Thanks for the advice everyone.
Onewiththecake is offline  
Old 10-11-2018, 01:42 PM
CF Senior Member
Iceaxe's Avatar
Member Since: Sep 2013
Location: Draper Utah
Posts: 1,141
Thanked 104 Times in 92 Posts

I had a similar situation and my collector car insurance paid for flat bed towing from my house to the garage. If your car breaks in your driveway or on the freeway should make no difference. Anyhoo... something to consider.

Iceaxe is offline  
Old 10-11-2018, 07:26 PM
CF Senior Member
Member Since: Jul 2015
Location: Westville NJ
Posts: 3,449
Thanked 418 Times in 389 Posts

Also, that main oils 2 rods. At least it is supposed to...
derekderek is offline  

Thread Tools
Search this Thread
Sponsored Ads
Vendor Directory

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: