 Engine Knocking after rebuild |
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| LCOX |
 Aug 6 2013, 07:31 PM
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#1
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Member  Group: Members Posts: 93 Joined: 19-December 09 From: Pinnacle Member No.: 11,148 Region Association: None  |
I've got a sick feeling I'm going to have to take my 1.8 engine out and completely apart again after rebuilding it.
Cranked it up for the first time after rebuilding it(all new bearings, new rings, head work and gasket set). The engine has a knock fairly loud at idle but when the engine rpm's are around 1500 it starts to quieten down and at 2000 rpms the knock goes away completely only to come back at idle when rpms are around 800-900. Other than that the engine appears to run very smooth. Where to I start here. L |
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Replies
| TheCabinetmaker |
Aug 9 2013, 12:19 PM
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#2
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I drive my car everyday Group: Members Posts: 8,373 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Worn, please splain the "no, you can" thing to me. Just don't want to assume something.
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Posts in this topic
LCOX Engine Knocking after rebuild Aug 6 2013, 07:31 PM
bulitt Pull the coil to distributor wire. Then crank it. ... Aug 6 2013, 07:43 PM sean_v8_914 what pistons did you use? might be skirt slap. doe... Aug 6 2013, 08:09 PM
Bartlett 914
what pistons did you use? might be skirt slap. do... Aug 8 2013, 02:28 PM aircooledtechguy Before assuming the worst, take a methodical look ... Aug 6 2013, 10:07 PM mrbubblehead you could pull the spark plug wires one at a time ... Aug 6 2013, 10:27 PM LCOX Update: I followed Mr Bubbleheads advice and pull... Aug 8 2013, 01:40 PM mrbubblehead
Update: I followed Mr Bubbleheads advice and pul... Aug 8 2013, 08:50 PM larss
and couldn't hear or fill a knock.
i was hop... Aug 9 2013, 04:19 AM malcolm2 So what is it about a rod that will make the knock... Aug 9 2013, 07:49 AM Vacca Rabite Are there spacers under the valve rockers?
If so ... Aug 8 2013, 06:03 PM stugray
The large rod ends are just about the only simpl... Aug 9 2013, 09:02 AM sean_v8_914 aircooledtechguy said something very important:
al... Aug 9 2013, 09:27 AM LCOX If it is a rod can't I take it off the crank w... Aug 9 2013, 09:56 AM worn
If it is a rod can't I take it off the crank ... Aug 9 2013, 11:55 AM mrbubblehead
If it is a rod can't I take it off the crank ... Aug 9 2013, 05:22 PM LCOX I just checked the valve adjustment on #3 and it... Aug 9 2013, 10:40 AM Dave_Darling You can pull the cylinders off, then the pistons, ... Aug 9 2013, 12:25 PM worn
You can pull the cylinders off, then the pistons,... Aug 9 2013, 02:11 PM stugray Whenever I need to pull the cylinders, I pull them... Aug 9 2013, 01:59 PM worn
Whenever I need to pull the cylinders, I pull the... Aug 9 2013, 03:08 PM Maltese Falcon See if you installed a con rod flipped in the wron... Aug 10 2013, 12:50 AM stugray
And how can you tell?
I did not install mine in ... Aug 10 2013, 10:40 AM The Cabinetmaker Stock rods have #s stamped on the rod and cap. The... Aug 10 2013, 10:55 AM stugray
I got that part and made sure to keep the caps o... Aug 10 2013, 10:56 AM r_towle
I got that part and made sure to keep the caps ... Aug 10 2013, 04:50 PM euro911 I rebuilt my first VW engine (40-horse) in 1970 an... Aug 10 2013, 11:07 AM Racer Chris T4 rods are straight but stock pistons have a pin ... Aug 11 2013, 07:43 AM LCOX Ok Everybody here is what I know.
I just lowered ... Aug 19 2013, 06:40 PM r_towle Numbers face the sky, as in UP. Aug 19 2013, 06:49 PM r_towle End play shims done properly?
Oil pump new? Type 4... Aug 19 2013, 06:51 PM mrbubblehead dont the rods a a tab or tange on one side of the ... Aug 19 2013, 07:06 PM euro911 If you're torn down this far, probably a good ... Aug 19 2013, 07:44 PM stugray The way I read what Chris said above is that there... Aug 19 2013, 09:18 PM Racer Chris
The way I read what Chris said above is that ther... Aug 19 2013, 09:35 PM LCOX I guess I'm a little confused now. Am I gettin... Aug 20 2013, 08:01 AM Racer Chris
I guess I'm a little confused now. Am I getti... Aug 20 2013, 11:42 AM LCOX Update. Chris I pulled #4 p/c and rod off and comp... Aug 20 2013, 11:50 AM stugray So when you checked the deck height you didnt noti... Aug 20 2013, 11:57 AM LCOX stu. I measured the rod end to end and the shorter... Aug 20 2013, 12:17 PM LCOX I checked closely and don't see any evidence o... Aug 20 2013, 12:27 PM malcolm2 How are you measuring rod length? I would expect ... Aug 20 2013, 01:02 PM euro911 Pull the rods, measure them, and weigh them all to... Aug 20 2013, 01:27 PM LCOX Mark. I've looked closer at both rods.
It ap... Aug 20 2013, 05:23 PM stugray
That makes sense. I didnt think you could put in... Aug 20 2013, 06:14 PM LCOX stu. so they weigh both sides of each rod individu... Aug 20 2013, 07:12 PM Racer Chris
Could this throw off the balance of the rod and c... Aug 21 2013, 10:41 AM LCOX Here is a picture of the rods. #3 is on the right... Aug 21 2013, 10:01 AM stugray If you are really anal about your balancing:
http... Aug 21 2013, 11:23 AM euro911 I wouldn't consider it anal ... it's the r... Aug 21 2013, 12:38 PM |
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