TRX 2.5R Engine Question

[RevoME]

Hi Folks,

in the Guide to rebuild a TRX 2.5 Engine, it instructs to put a drop of mobil one onto the connecting rod and other reciprocating engine parts. I am not rebuilding my engine but would like to protect it better during longer storage...
I use WD 40 for afterrun maintenance and crank the engine for a total of about 45 seconds. Since the engine is lubricated through the fuel, I assume to have the "washdown effect" with the WD 40 but what else can I do to lubricate the engine during storage? I find WD40 to be a good short term lubricant. Would it make sense to finish my after run maintenance with a few drops of MOBIL1 Oil right on the piston?

REVOME

 

[Cupooterluvr]

From that post, I gather that wd-40 does not harm the engine if you get it in the mill. I wanted to ask the same question.

 

[RevoME]

Must have been a stupid question, considering the response ratio.
Traxxas will tell I guess.
REVOME

P.S.: WD40 is the recommended afterrun lubricant for storage, together with regular After-run oil.
REVOME

 

[Candyman]

Never been a fan of WD-40 as long-term after-run. It works for a bit because it helps displace moisture in the case and can prevent rust. But it will eventually evaporate and leave a sticky residue behind. I'm all for using any straight-up after-run oil or many have recommended Marvel Mystery Oil for engine storage. They should be more stable over time and will prevent seizing and rusting.

 

[Mr T-Maxx]

Never been a fan of WD-40 as long-term after-run. It works for a bit because it helps displace moisture in the case and can prevent rust. But it will eventually evaporate and leave a sticky residue behind. I'm all for using any straight-up after-run oil or many have recommended Marvel Mystery Oil for engine storage. They should be more stable over time and will prevent seizing and rusting.

+1


Mr T

 

[RevoME]

What about Mobil1?

 

[jetmechG550]

Ed Bridges (EB Mods) says in capital letters for his engines DO NOT USE WD-40 for ARO. I know a lot of guys use Marvel Mystery Oil, me it's rare I put anything in at all, though I run almost weekly.

 

[jon2]

What about Mobil1?

As in automotive oil? if so NO! You should use after run oil that is made for these itro engines. The automotive oil is different blend. I would say stick to the Marvel oil or any After run oil you can get at your LHS.

 

[RevoME]

Okay, that makes sense... so there is really nothing you can do to keep it clean.
REVOME

 

[jon2]

Well what WD-40 can do is actually weaken the rubber. Meaning the seals. Its weird since Traxxas says to use it. I actually use after run oil.

I guess if you were going to use it in your engines, I would contact Traxxas on their opinion. I have been using ARO in all my engines and they still run like a top. Ask me about my driving skill and that will be a short story.

 

[Cupooterluvr]

A quickly spinning, perfectly straight top or a slow, wobbling top?

(lol)

 

[RevoME]

Traxxas Response:

Afterrun Oil or WD40 is fine.
NOPE on any other "Lubricants"
Woohoo!
Still I don't trust that WD40 stuff, can't imagine that this will not leave some heavy dudy sludge behind, considering how my engine sputtered when I started it last time...

Jon2 was apparently right.
)

I hope this post is condidered "railed" again
REVOME

 

[psunitro]

WD-40 has been fine for me for short peroids. I have used the MM oil, but IF you have a "filled" crank, like on some higher end mills, it will break down the bond. On yours it should be fine.

 

[jetmechG550]

WD-40 has been fine for me for short peroids. I have used the MM oil, but IF you have a "filled" crank, like on some higher end mills, it will break down the bond. On yours it should be fine.

Good point about the crank. I'm actually one to usually use ARO.