Diesel RVs: Re: [diesel_mercedes] Head experts...your insight please

Man oh man Bobby. I put the head in a large tote (don't tell the wife -
stole one of her Christmas bins) and dumped 10 gallons of my B100
homebrew in it yesterday afternoon. Went out this morning and you can't
even see the head. Understand that this morning it was 11F out so it's
cold in the garage. With the oil and such on the head, it actually
serves as a de-gelling agent in the biodiesel. But the garage is in the
30's due it to being attached and surrounded by heated living space on 2
sides.

I did quite a bit of the Googles last night and apparently guys are
using B100 in their parts cleaners. I am definitely going to pick one
up off Craigslist. Really works excellent.

Ben near Detroit

On 1/10/2011 2:16 AM, Bobby Yates Emory wrote:
>
> Ben,
>
> Biodiesel is reputed to be a good cleaner. MMO is also great. I
> would use biodiesel to do most of the cleaning and then MMO to finish
> up. Weird note - I recently found MMO in a spray can. I didn't know
> what to use it for - now I do - thanks.
>
> SVO is rumored to be bad news in the sump - it gels. I think
> biodiesel would be less likely to cause problems. But that extra oil
> change would still be a good idea.
>
> Bobby
>
> On Sun, Jan 9, 2011 at 11:15 PM, bgiovan <bgiovan@cavtel.net
> <mailto:bgiovan@cavtel.net>> wrote:
>
> Thanks Bobby. Appreciate the intel. Got the *&^%ing starter off
> the donor today also. Since I have that whole side open I figured
> I'd better deal with that thing now. Taking it in to get rebuilt
> tomorrow. Head is off and soaking in a nice biodiesel bath as I
> type. Gonna be nice and tidy to take to the machine shop. Doing
> some research on actually using biodiesel on the block and piston
> tops to do exactly what you're talking about. Get it nice and
> clean for the head when it comes back. If some biodiesel gets
> past the rings you'd think a quick oil change after reassembly
> would take care of it. What's the difference between that and MMO
> or any of the others? Then again I don't want to tempt fate and
> really f it up.
>
> Ben near Detroit.
>
> ------------------------------------------------------------------------
>
> *From:*diesel_mercedes@yahoogroups.com
> <mailto:diesel_mercedes@yahoogroups.com>
> [mailto:diesel_mercedes@yahoogroups.com
> <mailto:diesel_mercedes@yahoogroups.com>] *On Behalf Of *Bobby
> Yates Emory
> *Sent:* Sunday, January 09, 2011 9:28 PM
>
> *To:* diesel_mercedes@yahoogroups.com
> <mailto:diesel_mercedes@yahoogroups.com>
> *Subject:* Re: [diesel_mercedes] Head experts...your insight please
>
> Ben,
>
> On non MB, I have found them to be pretty tough, so you can be
> pretty aggressive with a scraper or an old screwdriver. I don't
> know if it is still available, but there used to be scrappers that
> were made for this. They looked like about 5 or 6 heavy wires
> side by side, bent around into a shape that made a handle.
>
> Try to be careful not to let the bits you scrape off to fall down
> inside the engine.
>
> Most of the de-carbonizing you are doing will be on the pistons,
> but also check the top deck of the block to make sure it is really
> smooth so the head gasket will seal properly.
>
> Bobby
>
> On Sun, Jan 9, 2011 at 9:35 AM, bgiovan <bgiovan@cavtel.net
> <mailto:bgiovan@cavtel.net>> wrote:
>
> With ya 200% Bobby. What is a good way to get the carbon off the
> pistons without creating more problems?
>
> Thanks!
>
> Ben near Detroit.
>
> ------------------------------------------------------------------------
>
> *From:*diesel_mercedes@yahoogroups.com
> <mailto:diesel_mercedes@yahoogroups.com>
> [mailto:diesel_mercedes@yahoogroups.com
> <mailto:diesel_mercedes@yahoogroups.com>] *On Behalf Of *Bobby
> Yates Emory
> *Sent:* Sunday, January 09, 2011 12:58 AM
>
>
> *To:* diesel_mercedes@yahoogroups.com
> <mailto:diesel_mercedes@yahoogroups.com>
>
> *Subject:*Re: [diesel_mercedes] Head experts...your insight please
>
> Ben,
>
> No experience with MB heads, but:
>
> I would remove the glow plug chambers and try to clean them. If
> they do not clean up, I would replace them.
>
> I would replace all the glow pugs while it is easy.
>
> I would clean all the carbon off the head and try to figure a way
> to test the valves (If you don't have a better way - turn the head
> so the ports are up, pour gasoline in each port, and see if the
> gas leaks out.)
>
> I would clean all the carbon off the pistons, but be careful not
> to get the carbon bits into the engine.
>
> Lots of work - good luck.
>
> Bobby
>
> On Sat, Jan 8, 2011 at 7:11 PM, bgiovan <bgiovan@cavtel.net
> <mailto:bgiovan@cavtel.net>> wrote:
>
> Well got the head off the donor car today (recall needing to R&R
> the head on a 1979 W116 300SD). First time doing this so...
>
> If the experts would care to gander at the photos and give me
> their feedback, I'd be ever so grateful!
>
> http://picasaweb.google.com/116318077355015592300/300SDHeadTurboRedux#
> <http://picasaweb.google.com/116318077355015592300/300SDHeadTurboRedux>
>
> Ben near Detroit
>
>
>
>
> --
> Toward freedom,
>
> Bobby Yates Emory
>
>
>
>
> --
> Toward freedom,
>
> Bobby Yates Emory
>
>
>
>
> --
> Toward freedom,
>
> Bobby Yates Emory
>