Warning: Bad to bump start and skip gears

[JanGeo]

bumping also does one other thing for front wheel drive - strains the engine mounts . . . and works the exhost flex joint . . . that's two!

[psyshack]

Originally Posted by philmcneal

i want to know!!!

as for tranny fluid, which are your favs psy?

Phil

Im a M1 fan.

I run M1 ATF in my Ranger 5MT and my Accords 5AT.

The Civic has been changed once and I used the Honda MT fluid. I will change that to a M1 fluid next time around.

When I buy a new car or truck I run them 3k to 5k miles then do engine oil and tranny fluid flush and fill. I then do tranny maint. every thrid oil change.

[SVOboy]

What is m1, I must ask? Can you provide a link? I believe I'll be running 0w20 when the time comes.

[psyshack]

Originally Posted by SVOboy

What is m1, I must ask? Can you provide a link? I believe I'll be running 0w20 when the time comes.

Mobil 1 oils.

I like Amsoil, but there products just arent as availble. M1 can be found everywhere.

[SVOboy]

Ah, then M1 0w20 is what I was going to use, so I don't need to worry (I worry when smarter people do things differently).

[krousdb]

Originally Posted by JanGeo

bumping also does one other thing for front wheel drive - strains the engine mounts . . . and works the exhost flex joint . . . that's two!

How is a bump start any different than a hard shift? My bump starts are so smooth that it feels no different than a shift at partial throttle. The only real difference is that the strain on the engine mounts and exhaust flex joint is in the other direction.

[landspeed]

Originally Posted by brick

The loss of power brakes could be overcome relatively easily with a small vacuum pump fitted to a vacuum reservoir (which probably already exists). Turbocharged cars have these, and I'm willing to bet you could source the parts on the cheap. The control system can't be terribly complicated; just a vacuum switch and maybe a relay.

My (very old) turbocharged car doesn't have an electric vacuum pump. If I floor it at 30mph in 5th (so not much acceleration, but some positive boost from the turbo), after 3 pushes of the brakes, they fade out!

[JanGeo]

Bump starting is a matter of how stiff your engine is and what gear you are in. The sticksion of a stopped engine may be greater than one that is rotating. With my Scion on Synlube it can bump start at 2mph in 2nd gear so not much of a wack to the engine mounts.

[Snax]

In our 5, a bump start at 10-15 mph is about like running over a cat. Not much drama to it - so long as you aren't the cat.

There is an issue with the power steering coming back online however. Apparently the control system doesn't like to re-engage it until the revs drop for several seconds. While that's not really an issue at higher speeds, it's not something I think I will be doing much of around town.

[omgwtfbyobbq]

Originally Posted by SVOboy

Anyway, phill, you can get autozone remanufactured axles with a liftime warranty so you can break as many as you want,

Especially awesome if you and your buddy/ies have the same axle type!