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dt36

Blocking off heater circuit (Pinto)

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Has anyone blocked off the heater circuit on their Pinto engine. 

Thinking of capping off the 2 inlet/outlet pipes at the bulkhead and the respective pipe ends at the water pump and inlet manifold. This is mostly just to tidy up the engine bay which currently has blue Samco hoses fitted. 

I never use the heater and don't drive the car in the winter, so not bothered with the interior temperature issue. My main concern is if it will cause any flow issues to the coolant circuit around the block. 

 

Screenshot_20180802-082100.png

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Never done it on a pinto but we use to do it on mk3 escorts due to leaking heater matrix’s and some never bothered to get it replaced ,they seemed fine but that was the CVH engine , could try it and give it a run watching the temperature gauge

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Used to be the first thing removed in my yoof, weight saving and all! ( it made so much difference) not! Never had any problems then, apart from the windows having as much ice on the inside as out in the winter and not being able to see for about 20 miles. 

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1 hour ago, khanlad said:

Used to be the first thing removed in my yoof, weight saving and all! ( it made so much difference) not! Never had any problems then, apart from the windows having as much ice on the inside as out in the winter and not being able to see for about 20 miles. 

Did you cap off the manifold and water pump too? My other thought was to link these together, but it slightly defeats the object of removing the pipes then. 

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Used a bit of pipe i think it went from water pump to carb? Sure it didnt look pretty, it just bypassed the heater. 

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9 minutes ago, khanlad said:

Used a bit of pipe i think it went from water pump to carb? Sure it didnt look pretty, it just bypassed the heater. 

I think that's do-able and can run under the oval strut brace. Hmmm... 

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I have seen it blocked off many times. Generally when the heater core springs a leak. The heater bulkhead outlets don't even need hose clamps just little caps to cover them. Just try blow out as much fluid as you can fro the heater core first then cap it. (Its only on the side where the system is pressurised you need the clamps) My Twincam has had it heater blocked up since the day I bought it. Im still unsure why the previous owner did it. Either the heater core leaks or the hoses over the engine were too unsightly. I bought new hoses to re-instate it one day, its on the list of things to do with giving it a washer bottle again.

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Two ways you can do this, 1/ get your local hose manufacturer the likes of Pirtec or someone cheaper to bend you some 16mm stainless tubing to come up from pump up and over rocker cover and down carb side 90 deg bend onto carb inlet 2) 90deg out of pump under exhaust manifold round back of engine to carb inlet underneath, the second option would have to be made in two peices to enable fitment.

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Well I've ordered 2 bungs earlier from Retrobolts which I'll fit to the heaters. 

Was going to have a play with the pipework earlier, but Betty's had me running about now to get paint for 2 rooms in the house. 

Also got a new handbrake cable here to fit as well, but  apparently the rooms are more important :-)

I'll get some pics up when the bungs are fitted to report in. 

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12 minutes ago, dt36 said:

Well I've ordered 2 bungs earlier from Retrobolts which I'll fit to the heaters. 

Was going to have a play with the pipework earlier, but Betty's had me running about now to get paint for 2 rooms in the house. 

Also got a new handbrake cable here to fit as well, but  apparently the rooms are more important :-)

I'll get some pics up when the bungs are fitted to report in. 

Oh boy haven't you learnt yet? Never announce in advance that you have spare time for a long stint of work on the car. In their minds this equates to wasted time when you could be doing "real" work around the house they deem more productive than "car tinkering"! So always remember its a quick job that "suddenly" goes wrong and takes you much longer than anticipated. When the questions start .... Line - "They are old cars honey, you have to expect that sort of thing"

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Yes,as most have said above. I done this all the time on the rally cars in a past life. I would definitely link water pump to carb to bypassed the heater too.

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Bungs have arrived and the Missus just brought them back from her Mother's. 

Quality looks really good. Not  fitted them, as I was actually in the garage when she got back and coolant was very hot due to having the engine running. 

Probably get these fitted tomorrow. 

Also waiting for a new throttle cable from DanST, as found mine has some frays  at the carb end. Ordered a new one today with a 90° conduit at the carb end to stop this happening again. 

IMG_20180807_211600001.jpg

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Decent fit. Nice quick job. 

I've run one of the old hoses across from the water pump to the inlet manifold for now, but will look for a black hose and some elbows to make the job more tidy. Also need to pick some black paint/spray up for the backplate. 

Was hoping that the throttle cable would arrive today as I paid for first class, but unfortunately it didn't turn up. Fingers crossed it's here for tomorrow. 

IMG_20180808_195443816.jpg

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1 hour ago, preacherman said:

Looking good Dale

Almost back on the road.

Neil

Hoping on MOT this weekend. It's all up and running with no leaks.

Spent the last 3 days in work stripping a 25t winch out to prove to a design engineer that his hydraulic circuit is configured wrong, hence why they've dead headed 2 very expensive pumps. Will get it all back up and running tomorrow, then knock off for a long weekend. I must be getting old, as I just come home then and can't be bothered picking up my spanners in the garage at night, so just been doing little bits here and there. 

 

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Kit car builders rarely use a heater so on the Pinto we just run silicon pipe from carb or inlet manifold to water pump.

the water flow is required for engine warm up and some hot/cold spots can form without it.

i also put a T piece bleed cap in the pipe to aid easy system air bleed.

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9 hours ago, Snapper said:

Kit car builders rarely use a heater so on the Pinto we just run silicon pipe from carb or inlet manifold to water pump.

the water flow is required for engine warm up and some hot/cold spots can form without it.

i also put a T piece bleed cap in the pipe to aid easy system air bleed.

I've run a hose over for now, but like the idea of a bleed valve. Will be changing it soon for a black hose, instead of the blue that's on it at present. 

Took it for MOT earlier and the temp gauge Sat at its normal position, so all good so far. 

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Sure some of the Renault cars/vans have bleed screws in their heater pipes, might be able to use one of those.

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Decided to take the jubilee clips off and ran a bead of Sikaflex around the outlets, as there's no pressure in there. 

Looks much cleaner this way. 

IMG_20180813_201809094.jpg

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Kit car builders rarely use a heater so on the Pinto we just run silicon pipe from carb or inlet manifold to water pump.

the water flow is required for engine warm up and some hot/cold spots can form without it.

i also put a T piece bleed cap in the pipe to aid easy system air bleed.

826B3ADE-5854-4A78-A308-497EB5E0FEE3.jpeg

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