PDA

View Full Version : Heater booster, how do I hate thee? Let me count the ways...


seans
03-01-2015, 02:07 AM
Solution to this thread continues in the Write-Up section: http://sprinter-source.com/forum/showthread.php?t=44165


After how many weeks???? of sub-freezing weather I finally decided to finish fixing my heater booster. Yes, I ignorantly dug out the screen (http://sprinter-source.com/forum/showpost.php?p=344509&postcount=9). :bash: And attempts at fabricating a replacement (three times) have failed. The "lots-of-smoke-until-the-glow-plug-turns-off-then-fuel-dripping-from-the-exhaust" kind of failed. :yell: At this point I believe Murphy is messing with me, and now is waiting for me to purchase a new burner. Which I'm about to do. And winter will end as soon as my credit card is accepted.

...unless I order the wrong part, or I have to wait while a friend in Europe orders one for me. I need the burner with the integral fuel pipe. I'm pretty sure it is 25.1922.10.0000. This is from Aqua Puttana's great (I'm not being sarcastic!) heater booster write-up thread (http://sprinter-source.com/forum/showpost.php?p=278601&postcount=5). :rad: Thanks for putting that together, Vic. It really helped me narrow my heater booster problems to the screen.

I don't see this particular burner listed on Esparparts.com (I will give them a shout on Monday.) Does anyone know of some other US sources for this part?

EDIT: I think this all started when my circulation pump was dying, and I was having random heater booster successes and failures. Should have fixed the circulation pump first before tearing into the heater booster.

Aqua Puttana
03-01-2015, 01:19 PM
Burner 25 1922 10 00 00 fits Espar model 25 2009 05 and 25 2031 05 among others. (Use the Espar model number if they don't like the Sprinter OEM model information.)

Some knowledgeable Espar folks.
Ray - Espar of Michigan aka esparparts.com
http://esparparts.com/

Guy - Boat Electric - Seattle, WA
http://www.boatelectric.com/espar1.htm

Some suppliers are mentioned in this thread.
http://sprinter-source.com/forum/showthread.php?p=338682#post338682

vic

seans
03-01-2015, 05:23 PM
Thanks for the help, Vic. I'll give those guys a call. Hopefully Ray at SprinterParts has one of these in stock. He was very helpful in getting gaskets and an exhaust tube to me.

seans
07-30-2015, 03:25 AM
I'm working on my heater booster again. Ray Lawrence at EsparParts.com quickly responded to an email, made sure the burner I needed appeared on his site (part 25.1922.10.0000) and supplied the part number for the seals/gaskets.

I obtained a new burner after unknowingly digging out the screen on my old one. Here's a photo of the screen in the new burner. Note the hole in the screen:

69051
69052

Thank you Aqua Puttana for your photos (http://sprinter-source.com/forum/showpost.php?p=275209&postcount=2) and discussion (http://sprinter-source.com/forum/showpost.php?p=274329&postcount=1) about this; it seems this hole is normal (I don't recall it from my original burner, and perhaps that was part of the problem?)

seans
10-27-2015, 10:50 PM
I finally got around to installing the new burner (with new, intact, integral screen aka wick). With the circulation pump having been fixed earlier, I fired up the van, and the heater worked great!

:cheers:

Except.... it smoked white smoke like crazy. :cry: The strong theory: I did not replace the o-ring between the heat exchanger and the water jacket, and when the heater is running, apparently it sucks in enough water and makes clouds of antifreeze steam. When I reopened the heater to check, the gasket on the air intake side was wet. Time to get to that o-ring...

But, while banging the water jacket on the counter to get the heat exchanger to slide out (the wrong technique, as I now know), I heard a "ting" on the floor. I had accidentally busted off the tip of the glow pin.

:bash:

So now I need a glow pin ($110+) AND an o-ring. Have posted in "want to buy" for a used one...

david_42
10-28-2015, 10:05 PM
seans - you make me very happy knowing that in 11 years my Espar has never come on. Doesn't get all that cold here, I think 17F is the lowest I've seen, and I stay off of the roads when it's below freezing; folks here cannot drive in ice and snow.

seans
10-28-2015, 10:18 PM
seans - you make me very happy knowing that in 11 years my Espar has never come on. Doesn't get all that cold here, I think 17F is the lowest I've seen, and I stay off of the roads when it's below freezing; folks here cannot drive in ice and snow.
You are very fortunate! Probably also saving your Sprinter from the slow death by rusting that mine is experiencing.

I'm hoping to eventually put the heater booster on remote control, so that I can fire it up well before engine start, and have a nice warm engine, to avoid the roughness off very cold starts. Might not make any difference, but it can't hurt to reduce vibrations on components like the harmonic balancer and fuel injector seals. Or maybe I'll just be trading one set of problems for another, given the frequency of service of the components the heater booster system relies on.

cahaak
10-29-2015, 06:49 AM
I have been using my Espar for 5 years now - it is moded to run from the 7 day timer. It gets used virtually every day in the winter in the morning - sometimes twice a day. The only issues that I have had are the elec. water pump(2X replacement) and just this summer I replace the exhaust hose as it was all rotted out. I have found it to be very reliable, but maybe that is because I run it a lot. We also run 5-10% biodiesel up here in MN if that makes any difference. The mod is a lifesaver in the winter and wonderful to start with a mostly warm engine.

Chris

Tooth Fairy
10-29-2015, 08:53 AM
I did not replace the o-ring between the heat exchanger and the water jacket,

I work on hydraulics and for the sake of 5cents I always change the o rings, you would be surprised at the number of techies that dont bother.........:idunno:

Aqua Puttana
10-29-2015, 12:10 PM
I work on hydraulics and for the sake of 5cents I always change the o rings, you would be surprised at the number of techies that dont bother.........:idunno:
I agree.

That said...

Sean,
Don't be surprised if you still get white billowing smoke with your next test run. If you had several no start attempts the the starting sequence raw fuel has moved into and built up in your Espar exhaust system. Once the heater fires up that fuel will be boiled off and come out as white smoke.

It can take some time. The more failed starting attempts, the longer it will take for the smoke to go away.

vic

seans
12-04-2015, 07:42 PM
Don't be surprised if you still get white billowing smoke with your next test run.
Thanks, Vic! Man, it sure smoked a lot when it first started. There was diesel in the exhaust line, I think. I also had a number of false starts with billowing smoke, but now it seems to be starting without a problem.

sikwan
12-20-2015, 02:14 AM
Solution to this thread continues in the Write-Up section: http://sprinter-source.com/forum/showthread.php?t=44165