Search found 506 matches

by MarkM
Sun Sep 19, 2021 9:57 pm
Forum: Scorpio
Topic: Irritation - stumble on accel when cold
Replies: 63
Views: 19456

Re: Irritation - stumble on accel when cold

Ed Lijewski wrote: Sun Sep 19, 2021 7:47 am FAI used the about symbols: ~, not dash symbol -.
Thanks, Ed. I had to zoom the page to 160% to see it.
by MarkM
Sun Sep 19, 2021 2:50 am
Forum: Scorpio
Topic: Irritation - stumble on accel when cold
Replies: 63
Views: 19456

Re: Irritation - stumble on accel when cold

Fresh Air Inspector wrote: Sat Sep 18, 2021 6:18 pm NOTE; my issue only happens with a cold engine at ambient temperatures below ~12C (~55F) and last for only a few minutes.
I don't want to seem like some kind of numbers Nazi, but -12C converts to a little warmer than 10F. There's a huge difference between 10 and -55 degrees F.
by MarkM
Fri Sep 17, 2021 1:13 am
Forum: XR4Ti
Topic: Watching Hot Rod Garage tweek an '87 Turbo T-bird engine...
Replies: 3
Views: 2578

Re: Watching Hot Rod Garage tweek an '87 Turbo T-bird engine...

That episode's been discussed before. Stinger talked about it a little at TurboFord and the bottom line is they didn't have the time that they really needed to work through the build, so there was a lot left on the table.
by MarkM
Fri Sep 17, 2021 1:10 am
Forum: XR4Ti
Topic: Exhaust manifold damage
Replies: 45
Views: 16910

Re: Exhaust manifold damage

I don't think Bob is making his log header anymore. They turn up used occasionally, and now and then you see someone that's made their own. RE: the cracking factory manifold, I think you're thinking of the E3 and not the E6. I don't recall hearing anything about E6s having cracking issues. XRs came ...
by MarkM
Sat Sep 04, 2021 10:54 pm
Forum: General Discussion & Intro Forum
Topic: Hello Again! AKA Once more into the breech!
Replies: 2
Views: 2353

Re: Hello Again! AKA Once more into the breech!

I sent you an email about your old account, did you receive it?
by MarkM
Wed Aug 11, 2021 9:25 pm
Forum: XR4Ti
Topic: End of the rope with my '88
Replies: 46
Views: 18369

Re: End of the rope with my '88

I don't see any mention of engine trouble codes.
by MarkM
Wed Jul 28, 2021 12:22 am
Forum: XR4Ti
Topic: Awesome. A new noise!
Replies: 235
Views: 74532

Re: Awesome. A new noise!

The driven gear needs more teeth. A lot more, from the sound of it. I made the assumption that you've kept the stock tire diameter or close to it and punched some numbers into the speedometer gear calculator above. It came back with a 23.7 tooth gear, and since 23 teeth seems to be the highest numbe...
by MarkM
Wed Jul 28, 2021 12:05 am
Forum: Scorpio
Topic: Driveshaft Vibration
Replies: 16
Views: 4900

Re: Driveshaft Vibration

That's good news anyway. So many times I see people chasing issues with driveshaft vibrations, unsuccessfully. Although usually it's in connection with a one-piece driveshaft conversion, not the stock unit.

thanks for the follow-up.
by MarkM
Mon Jul 26, 2021 11:46 pm
Forum: XR4Ti
Topic: Awesome. A new noise!
Replies: 235
Views: 74532

Re: Awesome. A new noise!

You can calculate the "closest to correct" number of teeth for the driven speedometer gear with some math.

By what percentage is the current speedometer off?
Does it read high or low?
How many teeth does your current driven gear have?
by MarkM
Mon Jul 19, 2021 10:05 pm
Forum: Classifieds - Scorpio
Topic: Scorpio for sale
Replies: 7
Views: 3868

Re: Scorpio for sale

John,

If you run a web search on the VIN from that ad, it appears that the eBay listing was from 2018. And it was on Bring a Trailer in 2014. Who knows where it's at now, or if it's for sale again?
by MarkM
Sat Jul 10, 2021 10:54 pm
Forum: Classifieds - XR4Ti
Topic: 1985 XR4Ti, 26K mi, Ottawa, CA
Replies: 2
Views: 2461

1985 XR4Ti, 26K mi, Ottawa, CA

Email sent to the club directors. Not mine, no affiliation or guarantees. He provided an email address also, which is his first name (dot)priess@icloud.com ------------------------------------------------ Hello , My name is Matthew and I live in Ottawa , Canada. The reason I am sending you this mess...
by MarkM
Wed Jun 30, 2021 9:56 pm
Forum: Scorpio
Topic: Need help identifying a component (no idea what system its apart of)
Replies: 13
Views: 4123

Re: Need help identifying a component (no idea what system its apart of)

While Peter's answer is still correct, it's the heater control valve, your picture is of an XR4Ti, not a Scorpio. Scorpios are 4-door hatchbacks with a V-6 engine.

Moving this thread to the XR4Ti section.
by MarkM
Sun Jun 13, 2021 5:39 pm
Forum: XR4Ti
Topic: Awesome. A new noise!
Replies: 235
Views: 74532

Re: Awesome. A new noise!

FWIW Ed I think you are right... if you look carefully at the manual it appears they reversed the lb ft and nm labels as the numbers don't otherwise compute. I didn't know the true answer, and ultimately it didn't matter... the VW bolts were toast at 25 lb ft, which obviously was not a good place t...
by MarkM
Sun Jun 13, 2021 1:09 am
Forum: XR4Ti
Topic: Awesome. A new noise!
Replies: 235
Views: 74532

Re: Awesome. A new noise!

There's no conflict. You're each describing a different end of the half-shaft.

the 38-43 lb-ft value is for the differential end of the half-shaft (page 15-03-5 in my shop manual)
the 28-31 lb-ft value is for the wheel stub shaft end (page 15-70-4)
by MarkM
Mon Jun 07, 2021 11:21 pm
Forum: Scorpio
Topic: High Idle - IAC Valve
Replies: 87
Views: 26203

Re: High Idle - IAC Valve

Also along those lines is Stabilant 22 (concentrate) and Stabilant 22a (pre-mixed). Expensive, but getting rave reviews for at least 35 years. Interestingly, it's only conductive under certain conditions. But generally the ones where you want it to be. https://www.stabilant.com/NoteList.html#appnote...