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Author Topic: What did you do to your Capri today?  (Read 70971 times)

azgtx

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Re: What did you do to your Capri today?
« Reply #120 on: May 01, 2015, 11:31:39 PM »

Well then let'er rip. I think Matt and I are both curious as to where this is going. We are both keen on the guys doing the 5 lug swaps on the 4wd Proteges( Bolt on affair) and the BF GTX's which is quite a bit more involved.
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Rocketman

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Re: What did you do to your Capri today?
« Reply #121 on: May 01, 2015, 11:39:59 PM »

Yep, I'd like to see what you're up to with that. Maybe start a new thread for it?

The Escort bearing system is at least a lot more simple than the Capri system, and easier to work on
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1.8L Turbo All Wheel Drive Capri... the "GTXR2"


supercowmoo3

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    • 1991 mercury capri n/a, 1984 vw rabbit diesel
Re: What did you do to your Capri today?
« Reply #122 on: May 04, 2015, 10:44:21 PM »

lets see; this week i replaced a fuel filter, changed my wheels and tires, fixed fuel injector wiring and connector corrosion, fixed a corroded ground on a turn signal bulb housing, and fixed corrosion on the 12v auxiliary power outlet. Tomorrow i'm doing platinum spark plugs, coolant flush(might save for a later day), ignition timing, oil and filter change, and painting my brake calipers red because race car.
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supercowmoo3

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Re: What did you do to your Capri today?
« Reply #123 on: May 06, 2015, 10:41:11 PM »

coolant flush, oil change, thermostat change to a 180 degree and now i have no worries of overheating and it runs pretty nicely at 200 degree while pushing it, tried to clear the codes by disconecting the negative lead on the battery and holding and contiuosly pressing down the brake pedal then reconnecting and turning the car on. CEL is still on and i still cant firgure out why, jumped the terminal to check for codes and just kept getting threes in sets of threes but i cant find out what a 333 code is or if is even exists so i am lost on that aspect but it runs better now anyways
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Rocketman

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Re: What did you do to your Capri today?
« Reply #124 on: May 07, 2015, 09:29:27 AM »

You're best off going back to the 195* thermostat. The 160 and 180 tend to cause a lot of issues, and you'll get zero heat in the winter.

I wonder if your code is just a Code 3 that repeats, which would be CID sensor or ignitor module in distributor.
If the code re-appears after removing the neg batt lead, then it is a persistent error, the ECU would not remember it
« Last Edit: May 07, 2015, 09:34:44 AM by Rocketman »
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1.8L Turbo All Wheel Drive Capri... the "GTXR2"


chrispoe

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Re: What did you do to your Capri today?
« Reply #125 on: May 07, 2015, 10:25:20 AM »

Rocketman is right, change back to the regular 195 thermostat, installing a lower temp thermostat won't improve cooling. The problems with installing a lower temp thermostat is that the engine was designed to operate at 195 and running it at a lower temp will increase engine wear, lower fuel economy, and degrade performance. Another issue is that the radiator fan still won't turn on until it reaches about 198 and the cooling fan will short cycle due to the fact the lower thermostat will just stay open anyway.
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supercowmoo3

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Re: What did you do to your Capri today?
« Reply #126 on: May 07, 2015, 04:34:17 PM »

Well, I only drive my capri in the summer anyways and it's around 190 degrees while driving so I'd say it's fine lol. Also something is wrong with the ignition in my car as it cuts out at around 5200 rpm and randomly when it feels like it during regular driving. The engine stumbles and loses power when it does this so I'm gunna start a thread on that and see what kind of help I can get.
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Rocketman

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Re: What did you do to your Capri today?
« Reply #127 on: May 07, 2015, 06:57:09 PM »

It's still an issue. Running at 190 on the gauge doesn't mean it's okay. The gauges are not accurate enough to tell you an exact number (later year capri gauges switched to Cold/Hot, not a numerical readout for this exact reason)

These engines are designed to work at a certain temp.
If the ECU doesn't see that's it's at normal temp, it causes problems.
-You burn more fuel. When the ECU sees the engine is cold(er) it throws in more fuel to richen the mixture, trying to warm the engine up.
-Thermal cycling like Chris said. The fan kicks on at 210 degrees. That means instead of cycling between 195 and 210 degrees (15 degree difference) the engine will now cycle between 180 and 210 degrees (30 degree difference) That might not seem like much, but the head & block expand/contract at different rates (aluminum head, iron block, aluminum expands more) so it causes wear on the headgasket. Not a whole lot. Usually it only sees this from a cold start to warm up, then shut down. But with a colder thermostat you have much wider, more rapid temperature swings, that accelerate wear on the headgasket and other components.

You can get away with it if:
-You tune an aftermarket ECU for a different target temperature
-You change the fan sensor to a corresponding lower temperature

Again, because the engine is made of different metals that expand/contract at different rates - the engineers designed the parts to fit together and work best at one specific temperature and the thermostat's job is to keep it there. Parts will fit different, and wear differently when they are run at a different temperature. (thats why head gaskets blow when these engines overheat, the aluminum expands too much, and the head warps out of shape)

You could run a colder t-stat on an old V8 and get away with it because the fan ran constantly right off the engine, and the tolerances within the engine were drastically different than today's stuff. They were also generally ALL iron (head + block). And stuff got rebuilt a lot more often back then.
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Rocketman

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Re: What did you do to your Capri today?
« Reply #128 on: May 07, 2015, 06:57:34 PM »

Cooler by no means equals better
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1.8L Turbo All Wheel Drive Capri... the "GTXR2"


mitch1204

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Re: What did you do to your Capri today?
« Reply #129 on: May 08, 2015, 04:50:28 AM »

Yep, she likes it hot and so do I. Different thermostats were applicable only in some pre 1995 vehicles. More like before 70''s vehicles and spotty between the 70's and 1995. It's unheard of today. Don't mix old thoughts with new technology.Listen to your electric fan turn on and off. It just doesn't happen. It's closely monitored and controlled. The engineers are doing what's best for the engine not to mention controlling emissions. If they wanted to run the engine cooler they would have the fan come on earlier and run it longer.

The ECU has set parameters and everything from the electric fan to fuel to spark advance rely on how the engine was designed. When one goes to making changes then the ECU needs reprogrammed

A good explanation as said is the car has a cast iron block and an aluminum head. I can't think of any vehicle with that combo where you can play with the temperature parameters.

The only reason they sell different thermostats is one part number might fit 30 vehicles. Who sells them? Part stores that want to sell you more parts.

Unless you have a 20+ year old vehicle with cast iron heads stick with OE thermostats. You'll thank us later or ask how to change a head gasket. :)
« Last Edit: May 08, 2015, 05:07:14 AM by mitch1204 »
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chrispoe

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Re: What did you do to your Capri today?
« Reply #130 on: May 08, 2015, 08:38:54 AM »

I would be more concerned with the cast iron block and the aluminum pistons running at the lower temp.
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Grimsleeper

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Re: What did you do to your Capri today?
« Reply #131 on: May 08, 2015, 04:14:03 PM »

Had the wheels and tires installed today.  She looks really good with them on.  Pics are forthcoming.
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Btown

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Re: What did you do to your Capri today?
« Reply #132 on: May 09, 2015, 02:37:41 AM »

Mounted boost gauge properly so I can see how much boost my new Rocket chip allows me to boost  ;D
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1992 Clubsprint x 3
Lowered, stiffened, boosted, chipped, fun
Daily Drive, 5.0 MY17 GT Ruby Red Mustang

chrispoe

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Re: What did you do to your Capri today?
« Reply #133 on: May 09, 2015, 02:54:08 PM »

Today I started mocking up how different rims would look on my car. Here are the rims I have and how they would look.


The first one is the old stock 16 inch rims from my 94 probe gt, the second one is the 17 inch which I currently have installed on my capri, the last one is an 18 inch that are currently on my probe.
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greywolf27030

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Re: What did you do to your Capri today?
« Reply #134 on: May 10, 2015, 08:19:57 AM »

Today I started mocking up how different rims would look on my car. Here are the rims I have and how they would look.


The first one is the old stock 16 inch rims from my 94 probe gt, the second one is the 17 inch which I currently have installed on my capri, the last one is an 18 inch that are currently on my probe.

I like the 18 inch, if you go with one of the others, I'll take them... ;D

My clutch pedal went to the floor the other day, I replaced the slave cylinder.  It pumped right up, the next morning, no clutch pedal again.  Guess I'll get a master next.

Jack Byrd
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Jack Byrd
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