Plastic Engine Cover

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

diezelraccoon

Member
Joined
Jun 18, 2024
Posts
94
Reaction score
39
Had an issue removing the plastic cover on the top of the engine that says Vortec. The 8mm bolt that holds it down just spins and won’t come out. I did manage to get the cover off but had to tear apart the rubber bushing under the bolt. I’ve tried a couple different methods, but the bolt will not come out of the plastic pillar. I’ve seen a couple different threads on this, but can’t really seem to find an answer.

Is the plastic pillar it screws into replaceable?IMG_7698.jpeg
 

BattleTank

Senior Member
Joined
May 16, 2024
Posts
118
Reaction score
163
To be BRUTALLY honest. I always take my engine covers off and toss them. They retain heat, get in the way and just have ZERO functionality on an engine. Especially when you need to replace the oil pressure sensor.
Your call if you want to reinstall it.
 
OP
OP
D

diezelraccoon

Member
Joined
Jun 18, 2024
Posts
94
Reaction score
39
To be BRUTALLY honest. I always take my engine covers off and toss them. They retain heat, get in the way and just have ZERO functionality on an engine. Especially when you need to replace the oil pressure sensor.
Your call if you want to reinstall it.
That doesn’t really answer my question
 

Donal

Full Access Member
Joined
Mar 30, 2021
Posts
249
Reaction score
362
Location
Americus Georgia
Had an issue removing the plastic cover on the top of the engine that says Vortec. The 8mm bolt that holds it down just spins and won’t come out. I did manage to get the cover off but had to tear apart the rubber bushing under the bolt. I’ve tried a couple different methods, but the bolt will not come out of the plastic pillar. I’ve seen a couple different threads on this, but can’t really seem to find an answer.

Is the plastic pillar it screws into replaceable?View attachment 431922
I believe the tower is glued in place and not considered replaceable and not available. the metal insert can be removed with a puller, but finding a replacement may be another problem. The bore of the tower is already damaged by the insert rotating, as the cap screw is turned to remove and will be damaged more when the insert is pulled out. You may consider living with the condition until you have to service the engine and then replace the entire unit. In the mean time, rotate the hex and see if the insert is rotating the the tower or the if the screw is rotating in the insert. Adding a trickle of crazy glue to the joint may be enough to remove the screw. Be aware the hole in the tower will be damaged and may require a glue in or oversize replacement.
Wait, is this a different tower that I remember. Bring in the the data, and history of this vehicle.
 
Last edited:

Matthew Jeschke

Full Access Member
Joined
Dec 28, 2017
Posts
2,008
Reaction score
1,394
Location
Sahuarita, Arizona
You can get a helicoil and rethread it. Take one of the other bolts (they are same size) go to hardware store and use the bolt size tool by loose fasteners in store and figure out thread size. Then go to eBay and order helicoil kit.

Or maybe some here knows the size of that bolt and its thread pitch?

I got rid of all my covers, including fancy ones on my vette. Just saying they serve no purpose other than if you are entering a car show.
 

Sparksalot

Supporting Member
Joined
Sep 20, 2020
Posts
6,515
Reaction score
19,799
Location
Bastrop County, Texas
You can get a helicoil and rethread it. Take one of the other bolts (they are same size) go to hardware store and use the bolt size tool by loose fasteners in store and figure out thread size. Then go to eBay and order helicoil kit.

Or maybe some here knows the size of that bolt and its thread pitch?

I got rid of all my covers, including fancy ones on my vette. Just saying they serve no purpose other than if you are entering a car show.
I pulled the cover on thecopcar when I added a catch can, never reinstalled it. I haven’t pulled it off thethirdtwin yet though.
 

Mudsport96

Full Access Member
Joined
Jun 6, 2020
Posts
1,327
Reaction score
2,131
Location
40.923,-89.488. Illinois
If the insert is spinning in the manifold, you could carefully try squeezing the plastic with vicegrips and then try turning the bolt. But at this point there is chance (albeit a small chance) that you could break the manifold plastic. Even could crack it down to a runner. Then you would have to replace the intake anyway. Your call.
 

Forum statistics

Threads
132,709
Posts
1,872,952
Members
97,528
Latest member
rowerowe614
Top