Ever modified a V6 into a V5 using brute force?

[I Like Waffle]

I just helped my brother and a friend do it to an old beater dodge which had broke the lifter bridge mount off the alum head. Rather than pulling the head, having it repaired, machined, buying a new bridge, gaskets, etc etc.

We just decided to pull out the broke giblets, rockers, pushrods, etc, and drill a couple 1/2" holes in that piston so it wouldnt compress anymore. Was kinda tough drilling holes in it through the plug hole but we got it done. After we finished the compression tester read a whopping 2 cranking PSI, but ofcourse wouldnt hold any. We plugged the spark plug hole with a 1/8" npt plug and removed the wire //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Heres a couple pics from the job. Got it all put back together, runs great but bucks a little right off idle i assume from the missing piston. Only problem now is the rear valve cover gasket leaks a bit, didnt replace it. Kind of an experiment but if the engine holds together we may change it and maybe change the oil to get the shavings out too //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

Ofcourse, id never do this to an old american car. But **** mopar v6s

Click to read more...

 

[av83 10+ year member]

isn't that cylinder going to fill up with unburnt fuel?

 

[goingdef 10+ year member]

only in carolina!

 

[I Like Waffle]

Since the rocker bridge no longer operates either the intake or exhaust valve, and the fuel injector is bypassed, that is basically a dead cylinder with some rotating weight. I normally wouldnt do stuff like this but it was an experiment. //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif

I dont usually **** with fail wheel drive pieces of uni body **** anyway, i usually build engines like this 468" olds //content.invisioncic.com/y282845/emoticons/greedy.gif.5a53e6246569d7ab79867170f3b06629.gif

 

[av83 10+ year member]

Since the rocker bridge no longer operates either the intake or exhaust valve, and the fuel injector is bypassed, that is basically a dead cylinder with some rotating weight. I normally wouldnt do stuff like this but it was an experiment. //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif

I dont usually **** with fail wheel drive pieces of uni body **** anyway, i usually build engines like this 468" olds //content.invisioncic.com/y282845/emoticons/greedy.gif.5a53e6246569d7ab79867170f3b06629.gif

lol, gotcha.

 

[goingdef 10+ year member]

how bad is the power loss?

 

[I Like Waffle]

Not substantially bad actually. Looking at the marks i think the bridge has been broken for a while, but just recently got bad enough to break completely off and cause a ruckus. Apparently this is a big problem with the 3.3 v6. Id say power loss about 15%, just stumbles a little off the line really, but not undriveable at all.

 

[CAT MAN 5,000+ posts]

so what happened it was tl and i dr

 

[goingdef 10+ year member]

Not substantially bad actually. Looking at the marks i think the bridge has been broken for a while, but just recently got bad enough to break completely off and cause a ruckus. Apparently this is a big problem with the 3.3 v6. Id say power loss about 15%, just stumbles a little off the line really, but not undriveable at all.

that's awesome if it breaks remove it and everything associated with it! keep on rolling!

 

[THATpurpleKUSH 5,000+ posts]

Mopar or no car

If you did that to a chevy, it wouldn't make it out of the driveway.

 

[chewie]

drilling holes in the piston is gonna cause excessive crankcase pressure... and btw olds motors **** ****

 

[ace_800 5,000+ posts]

Come fix ma goat.

 

[Bettr n' Revrse 5,000+ posts]

O ok

 

[Slayerx 10+ year member]

fuel mileage will suffer that's for sure, wouldn't be surprised if it got cut in half lol

friend of mine had a late 80's civic, ran that bish on 3 cylinders for like 6 months

 

[RAM_Designs 5,000+ posts]

fuel mileage will suffer that's for sure, wouldn't be surprised if it got cut in half lolfriend of mine had a late 80's civic, ran that bish on 3 cylinders for like 6 months

I had an '88 hatchback, got about 40mpg...never should have sold it.