1994 Nissan Serena heater removal

PAUADREAMS

MEMBER
1994 NISSAN SERENA
2.0L
4 CYL
RWD
MANUAL
160,000 MILES

Thankyou,
I am going to add a cracked head solution, SealWell an expandable plastic, to my radiator, and want to disconnect the heater during this fix, to avoid clogging this core.

Wednesday, April 2nd, 2014 AT 11:52 AM

3 Replies

KTECH

MECHANIC
57 POSTS

You can try using a sealing additive to solve your problem. However I would advise against it, your best bet is to replace the head. Sealers are just going to build up in important flow areas of your engine and cause larger problems. Its very unlikely that a sealing additive will hold. You will be just postponing the issue. I wouldn't drive the vehicle. Cheapest option is to check a scrap yard or a U-Pull auto parts. If you are mechanically inclined The head shouldn't be two hard to replace with a few hand tools. Drain the antifreeze. Remove the valve cover then the head replace all the gaskets and refill with antifreeze. It would advise buying a cheap torque wrench to use when putting back together

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Wednesday, April 2nd, 2014 AT 12:30 PM

PAUADREAMS

MEMBER
2 POSTS

Thankyou. Much sanity in your advice I hadn't thought of just a head replacement but an entire motor
but
.I have customized this van into a camper. Put platinum plugs in it. High qual roof racks. Front bull bar. Tow bar.I have fully undersealed it too.
Then I find my mechanic has, some while ago, drained the anti corrossive out. Amazingly, even when I had the radiator recored that firm charged me for coolant /corrosive but didn't put it in (I was distracted by my dying mum)

So now.I realize. All the myriad steel heater pipes are probably all corroded (one of these rear feeds burst. Hence I lost all water on the motorway.)
So just the head is not my only problem.

I need to just try my luck with some "snakeoil" and "Seal Well" (nz product) appears to be one that can stay in my coolant and continue to fill any new problems. Racing car drivers have have testimonials on their site.I am thinking of shutting down my entire heater system to alleviate this leakage potential.

If this doesnt work I will look at buying the most recent serena with the same dimensions and transfer all my custom fittings across to this.

So could you perhaps send me a link where I can see the correct way to shut the heater system off while I try this desperate move. Or what else does your wisdom offer. Thankyou so much for this help. Roy mason

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Wednesday, April 2nd, 2014 AT 3:26 PM