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Workshop => Engine and Bottom End => Topic started by: evaneyeball on February 15, 2020, 04:35:17 AM

Title: relieving the exhaust bridge
Post by: evaneyeball on February 15, 2020, 04:35:17 AM

i have a 86 cylinder, so when you talk about relieving the exhaust bridge that does that mean when you bore the cylinder

Title: Re: relieving the exhaust bridge
Post by: croat1 on February 15, 2020, 07:10:37 AM

Some good reading:

http://blog.wiseco.com/two-stroke-how-to-relieving-the-exhaust-bridge-and-drilling-lubrication-holes?hs_amp=true

Title: Re: relieving the exhaust bridge
Post by: broken1 on February 16, 2020, 10:21:51 AM

Great info. Thanks Joe.

Title: Re: relieving the exhaust bridge
Post by: The norm on February 16, 2020, 02:27:16 PM

That article hits the nail on the head! Heat causes expansion and the thin exhaust bridge will grow faster and cause a seizure possibly or at the least it will cause scoring. Scoring in the cylinder wall will cause loss of compression.
Loren