Author Topic: The mess under the intake (Read 330605 times)

bwawuz02 · « **Reply #150 on:** July 14, 2009, 08:32:47 PM »

Quote from: tjts1;25556

Now that all the hoses are out, you can see where the long coolant run begins on the side of the head between cyl 2 and 3, and ends at the coolant return pipe on the side of the block.

The coolant bypass is made out of a 1 foot long piece of 5/8" heater hose.

from this it looks like you only used the 5/8" heater hose, simply sinching it down on the smaller sized nipple on the head via the hose clamp. is that correct?

tjts1 · « **Reply #151 on:** July 15, 2009, 12:59:08 AM »

Yup. But if I had to do it again I would simply plug both ends. The circuit is not necesary for engine cooling.

McCall · « **Reply #152 on:** August 15, 2009, 12:48:59 PM »

Great Thread! I just joined the forum based on this thread alone. I, too, will be performing much of this mod over the winter (gotz to finish the race season first)

naika · « **Reply #153 on:** August 17, 2009, 03:06:15 AM »

I plugged both ends and no problem at all.

keflaman · « **Reply #154 on:** August 17, 2009, 04:28:23 AM »

Quote from: naika;76961

I plugged both ends and no problem at all.

I had no choice as the nipple on the block was severely corroded and I couldn't get a good seal with the hose. I ended up cutting the nipple flush with the block and then tapped and installed a plug.

Been running like that for a year or two.

She loved E · « **Reply #155 on:** September 22, 2009, 02:08:35 PM »

I started work on this mofo yesterday... thanks a million tjts for starting this and teh Phil for the cliff's notes

I'll post back when I've gone in so deep I don't know what I'm doing anymore.

sports.racer · « **Reply #156 on:** September 22, 2009, 10:04:18 PM »

My mess under the intake is history!

She loved E · « **Reply #157 on:** September 26, 2009, 04:18:18 PM »

Might want to append this PN to the original post (I ordered everything I need EXCEPT these :mad:):

(info from Pelican)
13-64-1-730-767-M213
x8
$1.25 each

You'll need 8 of them if you're going to pull and clean the injectors. They're $5.50 each at the dealer so don't even think about it!!!

Also, do you guys think I'm cool with this coolant hose setup?

I didn't like using a single 5/8" hose because the nipple on the head (kinky!) is smaller. So I used a leftover connector and piece of 5/8"->1/2(?)" hose from the mess. I *think* it'll be OK... everything is snug and the plastic connector and hose look to be in good shape.

Haraise · « **Reply #158 on:** October 13, 2009, 03:31:04 PM »

Can I end up with a system like this?

Also, any tips on what to use to cap the holes?

dude8383 · « **Reply #159 on:** October 13, 2009, 05:01:35 PM »

Quote from: Haraise;79853

Can I end up with a system like this?

Also, any tips on what to use to cap the holes?

i think you may loose hit entirely with that setup.

Haraise · « **Reply #160 on:** October 13, 2009, 05:32:44 PM »

I'm assuming by "hit" you mean "heat." It looks to me like I'm leaving the two hoses for the radiator, and two for the heater core. Am I missing anything?

tjts1 · « **Reply #161 on:** October 13, 2009, 06:31:12 PM »

You can't cap both the small outlets on the plastic pipe. The one on the side of the pipe goes to the radiator. The one at the top you can cap. There are 3 hoses going to the radiator. I have no idea why. The whole cooling system on this engine is bat shit crazy.

robweenerpi · « **Reply #162 on:** October 17, 2009, 02:05:09 AM »

Quote from: Duct_Taper;67192

Bringing up an old thread again... but has anyone in a cold climate (northern USA, or Canada) done this mod successfully? I'd like to do it but I'm concerned about the effects for cold weather driving.

I had the throttle freeze on me regularly in Northern Maryland. Driving to work in the morning typically. Especially if it was wet from salt on the roads. There was good grip but a lot of spray and a lot of cars on the road. Driving at really high speed like 70-80 most of the time there was sufficient cold airflow to freeze up the throttle. After long periods of steady open throttle the car would continue at speed when lifting the throttle or breathing the throttle for a downhill. Generally you'd only have like 15% pedal input so you could just counter it with the brakes. I suppose it would happen if you had 100% as well for long enough. I'd generally just push in the clutch and rev the car a few times and it'd go away for awhile. If it came back enough to be persistent I'd slow down and go down a gear.

nigel · « **Reply #163 on:** October 26, 2009, 07:22:21 PM »

There's an easy way to make the hose size change from the coolant pipe to the head nipple: Cut a 3/4 inch piece of the smaller hose, stick it in the end of the bigger hose (with some rtv for good luck) and hoseclamp. No more plumbing store monsters from the deep.

tjts1 · « **Reply #164 on:** October 26, 2009, 07:27:39 PM »

It seems like the easiest thing would be to cap both ends. Either way, a 5/8" hose has been reliable for over 2 years now.