changing engine supports
Pro
Joined: Oct 2009
Posts: 523
Likes: 4
From: Calgary Alberta
You should be able to remove the long motor mount bolts from the existing motor mounts and then jack your engine up from the front to remove and replace the existing mounts. Be careful not to damage anything when jacking the engine, and don't jack on the oil pan. I would recommend jacking on the harmonic balancer but with a cushion support on the balancer instead of directly on the jack.
Thick rubber or maybe blocks of wood would probably work fine. You might also need to disconnect your exhaust depending on the amount of movement available.
Hope this is helpful.
Drifting
Joined: May 2012
Posts: 1,353
Likes: 44
From: Calgary Alberta
91, What do you mean by horns? The mounts are supplied as two one-piece units, one for each side. The mounts are the only direct connections from the engine to the frame.
I recommend Corvette Central's stock style (but locking) rubber engine mounts. Put these in my 1970 and have no complaints. May as well do your transmission mount while you're at it.
I recommend Corvette Central's stock style (but locking) rubber engine mounts. Put these in my 1970 and have no complaints. May as well do your transmission mount while you're at it.
Drifting
Joined: Apr 2007
Posts: 1,970
Likes: 45
From: Cameron Park CA
The locking style rubber mounts are all you need. They are designed so engine torque reaction cannot pull the driver side mount apart - not a concern on the passenger side as that side compresses under high load conditions. I seriously question solid mounts, as the C3 frame isn't the stiffest which makes me wonder if solid mounts can put undue stress on the block and cause it to twist slightly?
Pete
Racer
Joined: Apr 2013
Posts: 302
Likes: 0
From: Yuma Arizona
91, What do you mean by horns? The mounts are supplied as two one-piece units, one for each side. The mounts are the only direct connections from the engine to the frame.
I recommend Corvette Central's stock style (but locking) rubber engine mounts. Put these in my 1970 and have no complaints. May as well do your transmission mount while you're at it.
I recommend Corvette Central's stock style (but locking) rubber engine mounts. Put these in my 1970 and have no complaints. May as well do your transmission mount while you're at it.
Drifting
Joined: May 2012
Posts: 1,353
Likes: 44
From: Calgary Alberta
I hear what you're saying, but I don't have a clue what you mean. There's nothing that supports the engine expressly other than the mounts as I've described and various connections to other parts of the car like the transmission. Better put a picture up of what you're talking about. The only horn like parts I can think of are the exhaust manifolds.
Racer
Joined: Apr 2013
Posts: 302
Likes: 0
From: Yuma Arizona
Engine mounts:
http://willcoxcorvette.com/popup_image.php?pID=6204
Engine support towers:
http://forums.corvetteforum.com/c3-p...rame-cuts.html
http://willcoxcorvette.com/popup_image.php?pID=6204
Engine support towers:
http://forums.corvetteforum.com/c3-p...rame-cuts.html
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
2027 Corvette vs The World: Every Model vs Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
Melting Slicks
Joined: Mar 2009
Posts: 3,126
Likes: 15
Drifting
Joined: May 2012
Posts: 1,353
Likes: 44
From: Calgary Alberta
Ok appears you mean the sections of the frame itself that the mounts actually bolt to. Suspect you're going to be cutting those out if so. Assume they must be rusted or bent badly if you want to change them?
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!