Said It Here

Weird engine noise after clutch replacement

The clutch disc may have been installed backward, causing its back side to hit the flywheel bolts. This creates an awful noise when starting and prevents the engine from running smoothly, leaving drivers afraid to keep the car running for fear of further damage.

Overview
People affected3 accounts across 2 forums
Workarounds found2 items attempted
Community agreement6 total upvotes

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Checking if components like the clutch disc were installed backward
    Did this help you?
  2. 2
    Inspecting flywheel bolts and surrounding assembly for contact
    Did this help you?

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/MechanicAdvice1 person · November 2026

“The car will keep running without me cranking the key but it sounds awful and I don’t want to break anything further.”source ↗

“If I give it some gas it does pick up a little but not running smoothly.”source ↗

West_Adeptness_2984 · r/MechanicAdvice · 3 upvotes
r/AskMechanics2 people · October 2026

“Is the clutch diac in the right way? Sounds like it's flipped and the back side of it is touching the flywheel bolts.”source ↗

Memorandum5 · r/AskMechanics · 2 upvotes

“But now we have a wierd noise when starting the engine.”source ↗

Effective-Onion4277 · r/AskMechanics · 1 upvotes

Where this came up

People with this problem also raised