samba vw iridium compression test|Vanagon : China if you saying that all you cylinders are reading 100-99psi that looks normal difference between the cylinders. and if you would really loose compression it would be more .
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I did a compression test yesterday for the first time. Results on a 1 year old RJE 2.3 WBX engine 165/165/165/165. Much better than the lo-comp QSC P&L engine that used to be in this rig. Conditions of test: warm engine, .
You can observe idle injector balance with vagcom. That gives an indication of the balance between cylinders, which sort of infers compression. So if balance is good .
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Compression Test directly from Bentley Manual. 1. Release locking pins for engine cover by turning 90 degrees. Remove the cover completely. 2. Warm up engine until it is a . The diesel compression testers go 200-300 psi higher than the gas/spark plug gauges. You should see 483 PSI on a healthy or fresh engine - and the Bentley mentions a .
STEP 1: Multiply the highest compression value by 0.15 (this is the decimal value of 15%). STEP 2: Round the result to the nearest one (for example: 25.6 would become 26). . if you saying that all you cylinders are reading 100-99psi that looks normal difference between the cylinders. and if you would really loose compression it would be more . I take issue with the Ratwell recommendation to test the engine cold. I don't have the Bentley for the buses any more, but for the vanagons, it is spec'd as a warmed up .
This note describes a simplified method of determining the thickness of a block to cylinder shim spacer needed to reduce the compression ratio of an air cooled VW engine. .
You can put some oil into the dead cylinder, and see if your compression reading changes, but even bad rings generally show SOME compression, not zero. Back to top . Samba Trout Slayer Joined: December 20, 2003 Posts: 2694 . Google on compression test and grounding the coil wire so you don't fry your ECU. It happens I guess, but I did a test once without grounding the coil and all was well. . 1990 VW Vanagon tin top weekender Carat
Yea that motor is pretty tired. Def. needs new p & c's and a calve job as mentioned above. Don't bother with honing and new rings because piston kits are too cheap. with #2 being high, and you finding coolant there (odd it would be there when the spark plug is in tight but it COULD be left over from a previous compression test or the second compression test). depending upon the condition of the head water jacket seal surface, you might just get by with a top end gasket set, that includes the fire ring. Compression Test Results #1-70-kept dropping during the test #2-120 #3-0 #4-100 No compression indicates a stuck valve correct? The hydraulic valves are supposed to be auto-adjusting right? I opened the valve cover, and turning over the engine the valves seem to go in and out, but I don't get any compression on the test.
I decided to do a compression test since I don’t trust this shop anymore since they have been jerking me around. Compression results: 1: 85psi 2: 90psi . Samba Member Joined: November 27, 2006 Posts: 3408 . Having owned Type 1 VW's I can certify that both dealer mechanics and mechanics at VW only repair shops will frequently get the . You might be able to do something of a leakdown test, though. You can rig up a starter to it out of the car to do a compression test. Just throw it in the car and see how it runs. It's not that hard to take the engine in and out in a Beetle. _____ Not enough car seats fit into my: '58 Beetle convertible '58 Beetle sedan VW themselves did that back in what ´66 with the 1500 S engine, though on 98 octane (roughly 93 US) It was sadly discontinued instead of being developed further. I have built a couple of stock cammed 1600 engines where we "chased" power within the boundraries of .
Did a compression test. Warmed up motor first. Cylinder 1: 145 Cylinder 2: 150 Cylinder 3: 140 Cylinder 4: 150 Numbers within the 10%. Rounded up or down to the nearest 5. The gauge isn't very precise. I just bought a cheap Innova compression kit at Advance. Is the compression value variances normal for a low mileage rebuild? In the absence of that, a compression test and another look at the carb are called for. By the way, fiddling with the idle mixture will not affect high rpm operation. It does have an effect on midrange, but not full throttle and higher rpm. Further mixture adjustments need a main or air correction jet change. One easy check, a little out of . The Iridium are not as thick as solid copper, the larger the gauge core the more current can flow. . A stock VW beetle engine in general does not need anything nore than the stock coil, plug and .032 gap. . With higher compression lean burning engines..it allows better and more stable ignition at highway rpms 3000-4000 rpm..and this all . Samba Member Joined: March 31, 2016 Posts: 1227 Location: San Angelo, Texas : Posted: Tue Aug 22, 2023 5:51 pm Post subject: Re: New piston and cylinder low compression: Check the valve clearance. _____ '69 Karmy, '69 Camper, Meyers clone, '65 drag bug, 10.78 @ 128 (sold it) '51 Dodge farm truck, . Lots of ways to fake a compression test just .
The only thing a compression test is good for is comparing all 4 cylinders on the same engine. _____ 2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK 2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS . Floating VW Samba Member Joined: April 28, 2015 Posts: 1599 Location: The South Zone : Hi, What are acceptable compression results on a used 1990 2.1 liter water boxer motor. I was told the motor was rebuilt and has 50k miles. This motor is in as a 1990 Vanagon Carat with 302,000 miles on the van according to carfax.com and the odometer. I rebuilt my 1971 original engine in 2017, and have not even tried to measure its compression, runs fine. I don't see a ton of value in an initial reading. _____ 1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70.
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There's nothing wrong with them. I personally don't see much of an advantage running an Iridium plug with a 40+ year old ignition system. A quick search found them close to a plug, where there are places you can buy all 4 4111's for less than .
It is best to do a compression test on a cold motor.It can be diffucult to install the hose the dial mounts to but once you get a couple of threads started use the other end of the hose and spin it in.Theres no certain order to do the test nut write down your pressures and compare the differences.I cant remember what the cylinder pressures . Great with high compression. Very long life...but you do need to regap them about every 10k miles. If you are wanting to go to something more modern...like the iridium plugs you listed..the only benefit over the plugs that Boolean listed... will be longer life. The BP6ERIX...is an iridium plug with booster gap. common grinds with accepted compression as follows Engle Cam grinds E100 - 7:1 E110 - 8:1 E120 - 9:1 E130 - 10:1 Again as mentioned earlier more duration allows cylinder pressure to bleed off and becomes acceptable "dynamic compression" There are several ways of adjusting compression: Case decking The next test would be a leak down test where compressed air is added to each cylinder while the piston is at the top of it's compression stroke and the time and amount of lost air from the cylinder is monitored. It allows you to hear where the air is escaping and if the valves are bad and how bad. _____ Brett “He’s decieving you boy!
If your running a Engle 110 cam I would suggest 9.0-9.5 with your elevation. I ran my 110 cam at 8.5-9.0 just above sea level with no problems. Forum Index-> Beetle - Oval-Window - 1953-57-> Help reading Compression Test Results : View original topic: Help reading Compression Test Results: matara: Tue Oct 06, 2009 7:08 pm: . Quote: Andrew Dodd Automotive specialising in VW repairs (02) 9683-2184 Units 54/55, 2 Richard Close, North Rocks, NSW Samba Member Joined: January 25, 2010 Posts: 3676 . 8-9.5 to 1 compression 1 1/2 header 36 or 40 IR carbs 60cc port 35x32 . The Fisher book on "How to Hot Rod the VW" lists the head flow numbers for single port and dual port 1600 VW heads but does not have the test pressures. I have a Super Flow bench and I tried all kinds of test pressures . Hi everybody, I just finished to do a compression test in my 1700 VW engine and three cylinders show 100 plus and one showed 0..maybe the valves are open in that cylinder and loose compression ? or what else could be ? . Samba Member Joined: March 12, 2012 Posts: 4278 Location: deepest, darkest Switzerland : Posted: Tue Jan 01, 2019 2:09 pm .
Compression for three cylinders: 114 psi Compression on one cylinder: 95 psi Difference between cylinders: 19 psi A synthetic oil will keep your engine cleaner inside than a dino oil. When doing an compression test, you need: A well charged battery All plugs removed Throttle held open a 1300 as having compression values of 107-135 psi with 85 psi wear limit a 36hp as having compression values of 100-121 psi with 64 psi wear limit With yours at a little over 100psi, perhaps you were driving a fresh rebuilt 36 hp pushing 120 psi. This would represent a roughly 20% increase in compression, making the 36 hp feel more powerful. The next test would be a leak down test where compressed air is added to each cylinder while the piston is at the top of it's compression stroke and the time and amount of lost air from the cylinder is monitored. It allows you to hear where the air is escaping and if the valves are bad and how bad. _____ Brett “He’s decieving you boy! Woodie 69 VW woodie (Hot VWs 7/12). "John's car" 64 VW woodie - The first ever . screw it onto yours. If the problem goes away, the carb is the cheif suspect. If the problem remains, and you screw the test carb back on the motor it came from and that motor still runs well, . Samba Member Joined: October 21, 2005 Posts: 836
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Vanagon
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samba vw iridium compression test|Vanagon