what size adaptor do i need for spark plug autolite AP63 ?

It would be a good idea if you supplied the thread size on the spark plug you need info on, if you did that I could answer your question.

Using a digital caliper, i measured the threaded portion of the spark plug and got a reading of 13.80mm. do i use the 14mm size colortune kit?

I would have to say yes you are correct, but I better add that just in case it is not you should check the thread pitch with guages or your caliper. Coarse thread is 2mm pitch and fine is 1.5mm fine. If you need any more info I'll check mine

Will this tool work on a 72 Porsche engine. Or do I need adapters

I used it for 25 years on a '71 VW Super Beetle with the standard 1600 engine. It works like a charm. Mine was bought in the 80s from an adv. in Hot VWs. I still have the shipping bag with the nice black box. 'Never let me down.

Will this work for a 70 gmc jimmy strait 6 2barrel carb , thanks.

I use this on my Mopar V8 440 from a '68 Chrysler 300. The 14mm thread. i recommend loosening up the plugs when the engine is cold and then (anti-seize) them back in not too tight. You could do all 8, but, for me, I am fine with just two on each side of my split plenum intake. ( If you have a split plenum design, check your runners on your intake so that you are really reading two from each carb side. Pretty funny if you happen to pick all four from the same carb circuit! For example, on RB engines, 3 and 5, 1 and 7, or 4 and 6, 1 and 8 are matched sides for a 4-barrel. So, 1 and 3, or, 2 and 4 would work fine.) Keep in mind the hot exhaust manifold/headers, so, pick the plugs you can get in without burning your fingers and heating up your plastic pipe (Gunson). After your engine is warmed up and you have done your vacuum or rev range or even AFR idle, etc., switch out the plug for the Gunson. If you can, wrap the plastic in the 1" DEI or similar heatshield. I used the Firesleeve. This will protect the flimsy black plastic. And, when done - don't take too long running the engine - take off the plastic parts and plug. Don't let heat soak kill your piece.

Desertcart Logo

Bezorgen naar Netherlands

Voor de beste ervaring Download de App

DOWNLOAD DE APP

WE HALEN ITEMS UIT

VAE
VK
India
VS
Japan
KOREA

Klantenservice

Over Ons

Klantondersteuning

Beschrijving

🔥 Tune your ride like a pro — see the burn, own the road!

PRECISION 14 MM FIT - Designed for a perfect fit in classic and modern gasoline/LPG engines for reliable readings.
LIGHTWEIGHT DURABLE - Compact 150g design built to last through countless tune-ups and road tests.
UNIVERSAL COMPATIBILITY - Works seamlessly with 2 & 4-stroke engines, carburetors, and fuel injection systems.
OPTIMIZE FUEL EFFICIENCY - Adjust your fuel/air mix precisely to boost performance and reduce emissions.
SEE YOUR ENGINES HEARTBEAT - Instantly visualize combustion quality with the original color-coded tuning plug.

The Gunson G4074 Colortune 14mm Single Plug Kit is a high-quality, precision-engineered tool that allows professional and enthusiast mechanics to visually assess and adjust the fuel/air mixture in gasoline and LPG engines. Compatible with various engine types and carburetion systems, it provides instant color-coded feedback from the combustion chamber, enabling optimized engine tuning for enhanced performance and efficiency.

Veelgestelde Vragen

Zijn de producten echt en authentiek?+

Ja, alle producten worden direct gesourcet van geautoriseerde retailers in de VS, VK, VAE en India. We hanteren strikte kwaliteitscontroleprocessen en verifiëren elk product voor verzending. Alle artikelen komen met toepasselijke fabrikantgaranties en zijn gedekt door ons standaard retourbeleid.

Hoe lang duurt levering en is het betrouwbaar?+

Levertijden variëren per bestemmingsland, doorgaans van 3-9 werkdagen. Elke bestelling is volledig traceerbaar via ons systeem. We verzorgen alle douane-afhandeling en gebruiken betrouwbare koerierpartners voor de laatste kilometer levering. Je ontvangt regelmatige updates over je bestellingsstatus via e-mail en onze app.

Wat is Desertcart? Is het veilig om van te bestellen?+

Desertcart is een internationaal e-commerce platform dat sinds 2014 actief is. We verwerken veilig duizenden bestellingen wereldwijd elke dag. Elk product doorloopt ons kwaliteitsverificatieproces voor levering, en we bieden end-to-end bestellingstracking, 24/7 klantenservice en een uitgebreid retourbeleid om een veilige winkelervaring te garanderen.

Hoe wordt productprijsstelling berekend?+

Onze prijzen zijn inclusief productkosten, internationale verzending, importrechten, douane-afhandeling en lokale leveringskosten. We verzorgen alle douane- en importprocedures, zodat er geen verborgen kosten zijn bij levering. PRO-leden ontvangen extra voordelen inclusief gratis verzending.

ChatGPT - opens in a new tab Perplexity - opens in a new tab Claude - opens in a new tab Grok - opens in a new tab Google AI - opens in a new tab

Trustpilot

TrustScore 4,5 | 7.300+ reviews

Farhan Q.

De levertijd was uitstekend en de verpakking was veilig.

2 maanden geleden

Yusuf A.

Fantastische ervaring over het algemeen. Zal aanbevelen aan vrienden en familie.

1 maand geleden

Bekijk alle Trustpilot reviews

Manufacturer	SC Parts Group
Brand	Gunson
Model	G4074
Product Dimensions	3 x 11.5 x 16.5 cm; 150 g
Item model number	G4074
Is Discontinued By Manufacturer	No
Item Dimensions L x W x H	30 x 115 x 165 mm
Item Weight	150 g

GUNSON G4074 Colortune シングルプラグキット 14mm

Details

Beschrijving

Specificaties

Heb je een vraag? Zie wat anderen vroegen

Veelgestelde Vragen