115hp VRO V4 1990 - Exhaust Filler Blocks needed ?

[Matt Hyne]

I have a 1990 model 115hp V4 VRO that I am doing some maintenance on and I have discovered that the exhaust filler blocks are stuffed and needs to be replaced.

The trouble is that these parts are end of life and cannot be ordered anymore.

I have been doing some reading and there are some suggestions that I can remove the exhaust filler block completely without any real impact. I wondered if anyone has actually done this (and not blown up their engine)?

 

[joereeves]

1990 115hp V4..... The exhaust filler blocks need to be replaced..... These cannot be ordered anymore..... There are suggestions I can remove these without any real impact?

Obviously I have modified your post in the above quote... if that offends you, my apologies as it is not intentional.

Those exhaust filler blocks are there for a reason (Tuned Exhaust). Without them, the exhaust tuning is not as it should be. As a last resort, if it were me, I'd be looking for a good used set to install. I don't know what the effect would be if their surface should be lower than your block surface but their existence would be better than a void in that area. And should the used filler blocks be slighter than your block, a machine shop can rectify that easily.

 

[racerone]

Lots of those are available used.

 

[Boobie]

I was told some years ago that if the filler blocks were missing on a v-4 you could burn a piston but you could get by without them on a v-6. This came from OMC direct.

 

[faztbullet]

They wont run long with them missing and low end suffers. Install a used set and have block milled...