Heater question

I purchased a complete system from a member here. I went to hook up the heater core to the hoses for the first start up and found out the the core has 2 - 5/8" spouts where my v6 has one 5/8" hose and one 3/4" hose. Searching for cores online for my yr it has the core with the proper spouts but its 10 1/2" by 6 1/2" The one i purchased here is square 6 1/2" x 6 1/2" so I assume the core and core cover is longer on the v6 and the one i got is going up for sale can i just find the core and housing , is everything else the same ?

Thanks

 

Here is the box

 

This is the core listed for my yr with the v6


http://www.rockauto.com/catalog/moreinfo.php?pk=946953&cc=1381238

 

what do the heater hose fittings on the engine side look like? cant you just change the fitting on the motor to make both hoses 5/8? might have to use a bushing but this sounds like it should be an easy fix

 

No. The 3/4" spout is actually built into the water pump, 5/8" on the intake manifold

 

what about a barbed fitting on both sides that reduces the size down to 5/8?

 

something like this one http://www.suremarineservice.com/FIT-039.aspx

 

this one at napa is plastic but should fix your issue they might have a brass one too http://www.napaonline.com/Catalog/CatalogItemDetail.aspx/Heater-Hose-Connector-Reducer-Connector-5-8-to-3-4-15-9-mm-to-19-mm-/_/R-NBG9911_0510242224

 

I used a heater core for a 72 DJ . it's close but you have to shorten height of heater core hold down clamps and enlarge heater outlet opening in box . move them outwards about 1/2 inch . you can get heater core from auto zone . and it it don't look like you can make it work . return it
http://www.autozone.com/cooling-heating-and-climate-control/heater-core/spectra-premium-heater-core/jeep/dj5/1972/6-cylinders-e-3-8l-1bl-ohv/15806_0_0/
sorry I thought you were looking for heater core . yep they make a hose adapter 3/4 to 5/8 heater hose

 

Thanks for the replies, I will keep the adaptors in mind but i am more interested in the factory correct version as my restoration has taken on that theme

 

My '70 has the stock heater and a :v6:
The heater core has the two 5/8 outlets like you show and the water pump is 3/4.
I either stretched a smaller hose onto the pump, or clamped down the larger hose onto the heater
Can't remember which....

 

Remove the hoses from the core and actually measure the inlet and outlet. I suspect the measurements will still be 5/8" but good to make sure. I suspect if you heat up the hose with a hair dryer it will stretch although not be the best option. Many parts houses have generic hoses with one Id on one end and a long length of hose with a smaller Id. That's what I would look for if possible.

 

I had to replace my original heater core on my '70 V6. Looks just like yours...

I had to search for a CJ-3 core as all the CJ-5 cores kept showing up with the intermediate CJ core, not the early one. The Intermediate was slimmer and longer, fitting inside the cab and not in the engine compartment.

I was able to get it from my local Autozone so I could easily return it. Fit is tight. Still in process of restoring the box and motor so haven't tested the setup but I'm optimistic as it all fits.

Tim

 

There's some core info here- http://www.earlycj5.net/forums/showthread.php?105257-New-Perkins-CJ-6/page22

 

I got a direct replacement from Summit Racing for my 71 (Ready Aire 399204). The inlet and outlet are both the same size.

http://www.summitracing.com/parts/PLI-399204/?ibanner=MobileSwitchNo

 

Jeepermc I read your other post where you found a replacement but the in/outs were straight yet the factory has 90's going different ways. How did you handle that? Here is my thread on my issue.
http://www.earlycj5.com/xf_cj5/index.php?threads/58-heater-core.117667/#post-1240137