News:

Mat Oxley 1986 IOM TT


click above to read more about Mat.

Main Menu

Cleaning the engine

Started by quocle603, April 07, 2019, 04:15:07 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

quocle603

Cleaning up my spare engine that I got with my RD350. There so much dirt, oil, grease, and grime all over the engine. I've used degreasers, dawn soap, simple green, purple power (conservatively). Usually what works best for me is WD-40, it lifts the stuff right off but of course you need to degrease the engine post clean up.

Just curious if there are any other suggestions that others have used to clean up a dirty old engine. :umm:
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC

Jessup

It's on the internet, it must be true :whistle:

Jspooner

Just plain old gasoline. Yes I know, dangerous, but works great. Put some in a heavy duty spray bottle and douse it down good. Use a solvent parts wash brush to loosen stuff up and just keep spraying it down. It will come clean.
"Just quit brain fucking it and get it done"

pdxjim

Vapor blasting is the way to go

Wasting time on 2T forums since the dawn of the internet. '89 TDR250, '13 300xcw, '19 690smcr, '56 Porsche 356A

Jspooner

^^^^^^^I agree, that is very nice, but I was assuming he is talking about cleaning up an engine that has not been taken apart.
"Just quit brain fucking it and get it done"

m in sc

wd for cleanup after scraping, then brake clean does a nice job as well. then i respray with wd.

my hs1. was very crusty/dirty when i got it motor wise



after:



never took out fo the frame, but did rework topend. just wd, some mild scotchbrite, a bunch of brake clean, 

quocle603

Quote from: Jspooner on April 08, 2019, 01:02:08 PM
^^^^^^^I agree, that is very nice, but I was assuming he is talking about cleaning up an engine that has not been taken apart.

precisely.
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC

Greaser Greg

What about baking soda in an air blaster? Safe for internal case cleaning of rust and sludge?
Every day above ground is a good one.
'71 R5B "Rusty"  '71 R5B "Decaf"   '99 KZ 250
'97 XL1200S "The Vibrator"   '08 XL1200N  "Greenie" (totalled)
'78 CB750F "The Skunk"   '74 CB550 "Blackie"    '78 Honda Hobbit

Jspooner

Quote from: Greaser Greg on April 09, 2019, 02:22:51 PM
What about baking soda in an air blaster? Safe for internal case cleaning of rust and sludge?


Again, as i said before, I think he's doing this to an engine that's still assembled.
"Just quit brain fucking it and get it done"

quocle603

It's all good. I just wanted some suggestion for myself and others who discovering some barn finds that have been sitting for years.
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC

Greaser Greg

What about the outside, then? Does baking soda blast work we'll?
Every day above ground is a good one.
'71 R5B "Rusty"  '71 R5B "Decaf"   '99 KZ 250
'97 XL1200S "The Vibrator"   '08 XL1200N  "Greenie" (totalled)
'78 CB750F "The Skunk"   '74 CB550 "Blackie"    '78 Honda Hobbit

IR8D8R

I used to have an old diesel fired Malmesbury steam cleaner. "Puff the Magic Dragon". That thing would remove everything but metal. It was kind of scary though.

I have used crushed coral in a blaster. Came from an aquarium store. Somewhere in between industrial soda and glass/sand. My friend who owns a Porsche shop swears by fire extinguisher soda for final finishing aluminum. It is slower than other media but ground really fine. Otherwise Harbor Freight has blasting soda. It's a little coarser than baking soda.

Vapor blasting seems to be the new best way. At least it leaves a smoother surface than dry blasting.

IR8D8R

Greaser Greg

Thanks for the tip on the soda type!
And thanks for starting the thread, quocle603 :righteous:
Every day above ground is a good one.
'71 R5B "Rusty"  '71 R5B "Decaf"   '99 KZ 250
'97 XL1200S "The Vibrator"   '08 XL1200N  "Greenie" (totalled)
'78 CB750F "The Skunk"   '74 CB550 "Blackie"    '78 Honda Hobbit