RD Engine Block Heater


IHC in the early to mid-fifties.

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Post Sun Dec 01, 2013 6:30 pm

RD Engine Block Heater

Does anyone have any information on using an electric engine block heater that goes into a core plug hole after the core plug is removed? These seem the simplest type to install, but I'm not sure what size the core plugs are and how deep the heater element can go into the block. I had one of these on a 1969 Fleetstar with a 250 Cummins and it worked great.

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Post Sun Dec 01, 2013 8:14 pm

Re: RD Engine Block Heater

I'm not a fan of that style block heater,they're more prone to leaks. That Cummins did not have that type block heater I'd say,there are much better types for the 855CI Cummins than that.
You might be better off with a circulating tank heater. They do a good job,better than some block heaters plus some have a thermostat control,which can save energy & :t3901; .

I looked in 3 catalogs and didn't find the RD engines listed for core plug heaters. Not surprising since they ended production ca.1976. A tank heater can be used on virtually any engine since they're commonly plumbed to the heater hoses.

Here's some links...
ZEROSTART
http://phillipsandtemro.com/catalog/index.asp
Catalog;
http://www.phillipsandtemro.com/userfil ... ATALOG.pdf

KATS
http://www.fivestarmanufacturing.com/Kat_s
Catalog;
http://www.fivestarmanufacturing.com/ge ... /DC12.aspx

HOTSTART
http://www.hotstart.com/
Catalog;
http://www.hotstart.com/assets/Catalog- ... 9-2013.pdf

All catalogs are downloadable,which I find works better with PDF's.
12 yrs.exp. in IH dealer parts dept.
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Post Mon Dec 02, 2013 9:49 am

Re: RD Engine Block Heater

The information I have about freeze plug heaters is limited to my personal experience in 1973 and 1974 while I was stationed in Fairbanks, Alaska. The car I drove up there had a 289 V8 and all I was able to locate and install before winter unloaded on me was the freeze plug style heater and a plate that went under my battery from an auto parts house. Believe me, a vehicle will not go in Fairbanks without being heated - personal testimony. Many forum guys here are located in various parts of Canada and I'm sure they will chime in. The freeze plug heater I installed was only located in the end of one cylinder head. I really wanted one of the tank style heaters, but at the time that option was not available to me. So I managed two winters with the freeze plug heater in one head and the battery heater plate - that was it. As long as I remembered to plug it up on winter nights, no problems. Leave it unplugged and the car would not start the next morning. Being military, I needed to be sure to have a car that started.
The freeze plug heater I had was made with a heater coil that extended into the water jacket no more than an inch or so and the hole was sealed up by means of a rubber expansion collar that sealed when you tightened down on the appropriate bolt. A cord running out the back along with the cord from the battery plate heater in an extension cord and I was good to go.
L110 owner since 1974, finally rebuilt 2014.
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Post Mon Dec 02, 2013 2:21 pm

Re: RD Engine Block Heater

WEW51L110 wrote:The freeze plug heater I had was made with a heater coil that extended into the water jacket no more than an inch or so and the hole was sealed up by means of a rubber expansion collar that sealed when you tightened down on the appropriate bolt. A cord running out the back along with the cord from the battery plate heater in an extension cord and I was good to go.

That is the same type block heater I have on some of my machinery. It heats up tractors just fine. Got a couple on the Loadstar 304, one for each bank of cylinders in case I need a fast warm up. The external (tank type) circulating heaters on the old tractors work well too. I have had good luck with both types.

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Post Mon Dec 02, 2013 7:23 pm

Re: RD Engine Block Heater

Thanks for all the help and the links - that should give me a good start (no pun intended). With all due respect the 855 Cummins had one of these heaters because I had to replace it once when some previous dufus ruined the plug connections.

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Post Mon Dec 02, 2013 10:54 pm

Re: RD Engine Block Heater

I read an interesting, online article about the in-block heaters (aka freeze plug style) The article was by NAVISTAR and in it they suggested that there is some block deterioration from the electromagnetic field that surrounds the heater coil. I got the impression that the article was focused on those persons who feel that it is necessary to have the engine heater activated 24/7/365.
Not that it matters, but my favorite system in the one that goes into the heater hoses that go to the cab interior. The article suggested that it was their opinion that this was a better system with less possibility of block deterioration around the heater coil.
I always started the 6.9 Diesel with a small shot of ether over the 20 years that it was our daily driver. The amount of ether that was needed was less than a droplet into the flex hose before the air-cleaner canister. That pig of an engine needed a shot of ether for the first start of the day, even on the warmest summer. The 6.9 hammered in protest until it got some heat into the coolant and as it neared 185F it got to be fairly quiet. I suspect that some damage could be done by over-charging a cold start with ether. Ether should not be used with any charge air heater system or glow-plugs. Ether ignites at 160C or 320F and helps to promote flame propagation with the Diesel fuel. Sometimes Diesel fuel will not have enough heat to ignite because of the parasitic heat loss to the cold cylinder walls.
There are some interesting and informative You Tube videos on Diesel injection systems. If a person is tempted to buy a vehicle with a HEUI system, it might be good advice to check out what it will cost to repair this now obsolete system, if it fails. It may be difficult to know absolutely what or if the PO did with the maintenance and oil-changes. Poor maintenance on a HEUI system will guarantee failure. I have seen a repair estimate for one of these engines top $7500, just for the injection system. The owner called the auto wrecker, sold the pick-up and bought a new Ram Diesel.
My neighbour is one of those guys who thinks that warm-up time should not last any longer than it takes for his hand to leave the start switch and grab a handful of shifter. He gets his truck in gear and pounds the throttle.
There is a good sized aftermarket industry built on replacing the Powerstroke with Cummins. There are easier to install kits for those who cannot think outside of the engine compartment. One of the kits that I am familiar with has the bits and pieces that one might need to move the Ford heater. If a person is afraid of the isb electronics and runs screaming and crying for their Mommy or hides under the bed, there are some simple instructions that will allow the isb 1999.5 - 2002 isb to run in a transplant situation. The conversion is almost as easy as the pre 1999.5 B series 12 valve engines.
No, I will not give out the information for free. If amyone needs it, I will post the link and they can pay for it like I did. anything less would be unfair to the small business. HINT: they are in eastern Washington.
I would be willing to bet that Ralph Goff is having some cold weather. It goes with that territory.
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Post Tue Dec 03, 2013 8:39 pm

Re: RD Engine Block Heater

I looked up the size of the core plugs for the RD engs in an IH book,there are 5 in the block(?) that are 2".

I then got the Zero-Start & KATS catalogs out...
I found some 2" "freeze plug" heaters although they are not actually for this application.

KATS has one listed under many applications in auto,AG,HD engines.
10611/11611 600W
https://www.google.com/#q=10611+heater&tbs=li:1
11611
https://www.google.com/#q=11611+heater&tbs=li:1

The element looks to be small enough so as not to contact anything in the cooling jacket which is imperative.

KATS are available at NAPA & Carquest so that's a plus for some.The KATS online catalog cuts off some of the circulating tank heaters so I have no pn's for their complete listing.Both auto stores above use their own pn's anyway,so you'd have to see their catalog.

FWIW here's more info...
Zero start
3500024
http://www.oreillyauto.com/site/c/detai ... &ppt=C0076

3500025
http://www.oreillyauto.com/site/c/detai ... &ppt=C0076

Series 41 Ind. tank heater w/t-stat 5/8 hose nipples replaceable t-stat & element
2204010 750W
http://www.oreillyauto.com/site/c/detai ... &ppt=C0076

2204029 1000W
http://www.oreillyauto.com/site/c/detai ... &ppt=C0076

Series 8000 tank heater w/t-stat 5/8 hose nipples

3308001 750W
http://www.oreillyauto.com/site/c/detai ... &ppt=C0076

3308002 1000W
http://www.oreillyauto.com/site/c/detai ... &ppt=C0076

KATS
30603 1000W (=ZS 3500024) IH/Case,Deere,Hecules
http://www.napaonline.com/Catalog/Catal ... 0282404099

12010 850W tank heater
https://www.google.com/#q=12010+engine+heater&tbs=li:1

E bay tank heater listing
http://www.ebay.com/bhp/engine-tank-heater


Personally I'd go with a tank heater (preferably Zero-Start) with a t-stat since these things can make your electric meter spin more,some use a good bit of amps.
12 yrs.exp. in IH dealer parts dept.
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If you don't have anything nice to say...say nothing.
If you don't learn something new everyday...you weren't paying attention.
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Post Fri Dec 06, 2013 2:04 pm

Re: RD Engine Block Heater

We call them block heaters and everyone in the city has one in their vehicle,,they are stock item on new vehicles here. You should be able to source one through Temro. I have only ever had one leak. Got a rubber glove from the cook at the truck stop and made a temporary gasket to get me home. If you listen closely when you plug the block heater in you can hear them starting up,,faint sound of a kettle. The circulating heaters are an offshore item,,they just dont last.

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Post Fri Dec 06, 2013 7:43 pm

Re: RD Engine Block Heater

Thanks again for all the information. I just ordered a Kats 11611, should be here next week just in time for single digit temps. here in good 'ole southwest Indiana.

Redk5guy

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