Domestic pressure washer on a cylinder head (off bike) - Triumph Forum: Triumph Rat Motorcycle Forums
Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 17 (permalink) Old 08-21-2019, 01:01 PM Thread Starter
Site Supporter
Commentator
Main Motorcycle: T140 E
Lifetime Premium
 
Join Date: Jun 2009
Location: Reading Berks UK
Posts: 9,386
Other Motorcycle: 56 Plunger Tatty Cub
Extra Motorcycle: CZ winter bike
Domestic pressure washer on a cylinder head (off bike)

I have a spare cylinder head (several actually) for Cubs and C range and will be using them to build a couple of engines.
Has anybody used a pressure washer to clean a casting ?

I wondered about first brushing with gunk, then placing the head on a rack, put a bucket over it and sit the hose from a steam cleaner up inside for a while.

Then I'd give them a good seeing to with a pressure washer.

Is this pointless?
Will it work?

I don't want to go down the dishwasher route
DAVE M is online now  
Sponsored Links
Advertisement
 
post #2 of 17 (permalink) Old 08-21-2019, 05:50 PM
wol
Moto Grand Prix
Main Motorcycle: T140 "special"
Senior Member
 
Join Date: Oct 2010
Location: Carmarthen UK
Posts: 2,559
Other Motorcycle: 1970 T120R Project
Extra Motorcycle: yes please
I have tried a pressure washer on cylinder heads - never found that it did very much to clean it ! -- problem seems to be that deep down in the fins the crap is almost burnt on and very hard so gunk has no impact - tried steam too but again did not work for me !--- only thing so far that worked is for me is glass bead blasting -- currently getting together a small set up to soda blast but not tried it yet
wol is online now  
post #3 of 17 (permalink) Old 08-21-2019, 06:31 PM
Supersport 600
Main Motorcycle: Triumph Bonneville T140E
Senior Member
 
Boggie's Avatar
 
Join Date: May 2019
Location: Buckinghamshire, UK
Posts: 155
Hi Dave,

Have you considered buying an ultrasonic cleaner? I bought one a while back and wished I had done so years before. I put a wide variety of items in it; old car and bike bits, jewelry, tools etc. Using a mixture of distilled water and cleaning solution the results are quite impressive.

Most recently I removed the grimy old Amal Mk2 carbs from my Bonnie project, stripped them to component parts and ran them in the cleaner for 90 minutes max intensity and temperature. I then ran a 30 min process with just distilled water at the same settings, to ensure that all the cleaning fluid was removed. They came out looking pretty much brand new. I did the same to a set of old spark plugs. Again, they came out like new so I gapped them and stashed them under the seat as spares.

Ultrasonic cleaners are invaluable workshop tools and not very expensive but get a quality one with good reviews. I paid about £150 for mine. Unfortunately it is not quite big enough for a cylinder head or I would have offered to clean yours, as you are not far from me.

Alternatively, you could consider: Gunk and pressure wash the head, then use a whole large spray can of carb cleaner to ensure all oils have been removed. Once it is bone dry, spray it with Aluminium Finish engine paint. I have done this on a number of previous restorations and they look great.

I have a sand/media blaster setup too but rarely use it on engine bits. Probably me being over cautious but I worry that I might not get all the media cleaned out. Soda is probably a better bet. Blasting works great on chassis and frames but is a REALLY messy process. It gets bloody everywhere.... 🙂

Ian

Last edited by Boggie; 08-21-2019 at 06:38 PM. Reason: Correct autocorrect
Boggie is online now  
 
post #4 of 17 (permalink) Old 08-21-2019, 09:09 PM
Site Supporter
Grand Prix 500
Main Motorcycle: 1969 T120R
Lifetime Premium
 
Join Date: Jul 2016
Location: Southern Quebec
Posts: 128
Whatever you do, don't use oven cleaner on the head. Ditto any kind of naval jelly.

Bruce Miller (hermit47)
'69 T120R
www.hermit.cc/tmc
Hermit47 is offline  
post #5 of 17 (permalink) Old 08-22-2019, 04:38 AM
wol
Moto Grand Prix
Main Motorcycle: T140 "special"
Senior Member
 
Join Date: Oct 2010
Location: Carmarthen UK
Posts: 2,559
Other Motorcycle: 1970 T120R Project
Extra Motorcycle: yes please
I have been considering an ultrasonic cleaner for a while --- hardest decision is on what size ? ---- a big one would be ideal but the cost starts to ramp up the bigger you go and gets difficult to justify for occasional use -- might just go for one that takes a carb -- will see how the soda blasting works first
wol is online now  
post #6 of 17 (permalink) Old 08-22-2019, 08:41 AM Thread Starter
Site Supporter
Commentator
Main Motorcycle: T140 E
Lifetime Premium
 
Join Date: Jun 2009
Location: Reading Berks UK
Posts: 9,386
Other Motorcycle: 56 Plunger Tatty Cub
Extra Motorcycle: CZ winter bike
I do have an ultrasonic cleaner but it's just a small one from Maplin (think radio shack if you're American ) but it's not big enough

Maybe I'll just build a rat bike
DAVE M is online now  
post #7 of 17 (permalink) Old 08-22-2019, 10:31 AM
Team Owner
Main Motorcycle: 1977 Triumph Bonneville
Senior Member
 
Join Date: Sep 2011
Location: Grass Lake , Michigan,USA
Posts: 5,281
Other Motorcycle: 1996 Ducati 900ss/cr
Extra Motorcycle: 2007 Ducati S4RS
Iíd try what you have access to. Nothing lost if it doesnít work, but it will probably get some of the crud off. On dirt bikes I used to use an old screwdriver or such to loosen the baked on stuff first. You might try soaking the head in something like a white vinegar solution overnight first.
duc96cr is online now  
post #8 of 17 (permalink) Old 08-22-2019, 02:34 PM
SuperSport
Main Motorcycle: 66 Triumph TR6
Senior Member
 
Join Date: Jul 2012
Location: NZ
Posts: 1,399
Other Motorcycle: 66 Triumph T120R
Do you have a car groomer local? Most have proper commercial Steam Cleaners and like Beer.

Rod
Redmoggy is offline  
post #9 of 17 (permalink) Old 08-24-2019, 03:35 AM
Moto Grand Prix
Main Motorcycle: 1973 Triumph TR7RV
Senior Member
 
TR7RVMan's Avatar
 
Join Date: Oct 2013
Location: Pleasant Hill, CA USA
Posts: 2,648
Other Motorcycle: 1964 Triumph Mountain Cub
Hi Dave, I've used gunk & pressure washer several times. I think it's a good way to start.

I've used Naval Jelly (alloy formula) also. It changes color of alloy, but does clean well.

I don't like the way sand blast changes the color & texture so I won't use it.

Got a soda blast kit. Same basic thing as sandblasting, but uses special soda sized nozzles & special baking soda media that doesn't cake/clog as easy. Moisture from air compressor causes clogging of nozzle. After blasting soda washes off easy with hot water & a brush.

To my eyes soda blasting changes color/texture of alloy less than other blasting medias as well as most chemicals. It does a decent job at removing the cooked on black carbon if you can get nozzle close into area. I use a blunt screw driver to chip off thick deposits when possible deep between fins. Soda doesn't erode gasket surfaces like sand or bead blasting, but it will, so go easy on them or tape up.

Here's '69 Bonnie that was soda blasted in my backyard. The cadmium parts, bolts, rocker shaft ends, intake manifolds were replated in my garage with an Eastwood zinc/cadmium kit powered by D cell batteries. These photos some months after the work. Still good after almost 2 years now. Looks pretty much like factory fresh bike. Tank & fender paint original. Frame repainted where paint was poor.

On this bike, all the non polished alloy parts were soda blasted. Main cases, trans inner cover, head, rocker boxes. Cyl was blasted also. Cyl was painted with Duplicolor Ford motor paint heat resistant Semi gloss black. Over 3-4 years the semi gloss dulls. I'm going to use same paint in gloss next time so it will hopefully dull to semi gloss.
Don
Attached Thumbnails
Click image for larger version

Name:	IMG_2483.JPG
Views:	9
Size:	2.42 MB
ID:	653226   Click image for larger version

Name:	IMG_2482.JPG
Views:	11
Size:	3.64 MB
ID:	653228  
TR7RVMan is offline  
post #10 of 17 (permalink) Old 08-24-2019, 09:19 AM Thread Starter
Site Supporter
Commentator
Main Motorcycle: T140 E
Lifetime Premium
 
Join Date: Jun 2009
Location: Reading Berks UK
Posts: 9,386
Other Motorcycle: 56 Plunger Tatty Cub
Extra Motorcycle: CZ winter bike
I only have a small compressor at home but we have one at work that is about twice the size (50/100 ltr?)
I did try one of those YouTube home made soda blasting tools but it clogged a lot.
I did buy a shot blasting kit from Aldi/ Lidl and agin my compressor didn't have the oomph but I could take it to work and see

My t140 head was sandblasted (maybe bead blasted ?) 35 years ago and I still like the rough cast look. I never was one for polished engine top ends.
DAVE M is online now  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options
All posts must adhere to Forum Rules

Register Now



In order to be able to post messages on the Triumph Forum: Triumph Rat Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome