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Search: Posts Made By: Neil Harvey
Forum: 911 Engine Rebuilding Forum 02-21-2020, 02:56 PM
Replies: 5
Views: 281
Posted By Neil Harvey
I have received 3 calls this week asking, "how to...

I have received 3 calls this week asking, "how to install cylinder head studs?"

My opinion is, do what ever makes you feel comfortable, or listen to those that may have some knowledge of how and...
Forum: 911 Engine Rebuilding Forum 02-17-2020, 09:02 AM
Replies: 3
Views: 349
Posted By Neil Harvey
Measuring your cam's 0.050" duration on the...

Measuring your cam's 0.050" duration on the engine is fright with error opportunities.

However, the fact you are measuring the Intake centerlines the same, is pointing to some poor exhaust lobe...
Forum: 911 Engine Rebuilding Forum 02-13-2020, 01:18 PM
Replies: 36
Views: 1,332
Posted By Neil Harvey
Just a few ideas to float here. Knock is...

Just a few ideas to float here.

Knock is either pre ignition event or post. Pre is typically a temp issue, plugs, hot spots etc. Post is cylinder pressure, slow burn to end gas particles, fuel...
Forum: 911 Engine Rebuilding Forum 02-10-2020, 10:37 PM
Replies: 10
Views: 587
Posted By Neil Harvey
Chambon was/is a French Crankshaft company that...

Chambon was/is a French Crankshaft company that as suggested was bought out some years ago. They made many cranks for and had a strong pedigree in F1 with Renault particularly and many others. They...
Forum: 911 Engine Rebuilding Forum 02-01-2020, 12:39 AM
Replies: 0
Views: 589
Posted By Neil Harvey
something to look for

I was cruising the internet tonight (don't get a lot of time to do) and came across a guy by the name of "Kav" rebuilding his Porsche engine. It was part one, where he assembles his case and lower...
Forum: 911 Engine Rebuilding Forum 01-19-2020, 07:48 PM
Replies: 108
Views: 38,063
Posted By Neil Harvey
Ignition is one of my sore points when it comes...

Ignition is one of my sore points when it comes to these air cooled engines. I believe there are two main reasons why Inductive Ignition came about. Inexpensive to produce and for emissions.

I...
Forum: 911 Engine Rebuilding Forum 01-15-2020, 03:42 PM
Replies: 24
Views: 1,657
Posted By Neil Harvey
Be careful here. I have corresponded with you on...

Be careful here. I have corresponded with you on my suggestions. But maybe for others reading these posts, my advice is always start with the coldest most retracted plug if you are unsure. Understand...
Forum: 911 Engine Rebuilding Forum 01-13-2020, 02:08 PM
Replies: 24
Views: 1,657
Posted By Neil Harvey
Plugs need to be chosen not just by heat range...

Plugs need to be chosen not just by heat range but by firing end type. NA engines will run more extended open firing ends as long as you have piston clearance. The more extended the "hotter" the plug...
Forum: 911 Engine Rebuilding Forum 01-06-2020, 09:57 AM
Replies: 33
Views: 3,688
Posted By Neil Harvey
You made my point, I guess. I suggested blanket...

You made my point, I guess. I suggested blanket statements that have been commonly used and thought, have no place in this business. That every engine and the parts used have to be looked at in...
Forum: 911 Engine Rebuilding Forum 01-05-2020, 11:17 AM
Replies: 50
Views: 10,546
Posted By Neil Harvey
This year my intention is to bring to this...

This year my intention is to bring to this community more basic info on rebuilding these engines. Hopefully it will be of help, lowering the fear that some often have when starting this journey. I...
Forum: 911 Engine Rebuilding Forum 01-04-2020, 02:21 PM
Replies: 33
Views: 3,688
Posted By Neil Harvey
"To each his own". You need to make these...

"To each his own".

You need to make these decisions based on knowledge and experience. You are the builder and you are responsible.

These decisions need to be decided on what parts you have...
Forum: 911 Engine Rebuilding Forum 01-03-2020, 07:29 PM
Replies: 33
Views: 3,688
Posted By Neil Harvey
Yes indeed groove the journal and cross drill the...

Yes indeed groove the journal and cross drill the center main. My post was about typical work not about modifications. But really good advice.

I think Boxster main bearings come as gutter types...
Forum: 911 Engine Rebuilding Forum 12-30-2019, 11:12 AM
Replies: 33
Views: 3,688
Posted By Neil Harvey
911 Crankshaft. This about what to look for...

911 Crankshaft.

This about what to look for when reconditioning a crankshaft, not any sort of modification. What to do when rebuilding your engine.

Once the rods have been removed from the...
Forum: 911 Engine Rebuilding Forum 12-27-2019, 03:17 PM
Replies: 50
Views: 10,546
Posted By Neil Harvey
It has been a crazy time lately. Indianapolis for...

It has been a crazy time lately. Indianapolis for PRI, then to Detroit, now in Florida for a break and back to LA just after new year. In the next few days I hope to post some photos of the parts we...
Forum: 911 Engine Rebuilding Forum 12-27-2019, 02:39 PM
Replies: 33
Views: 3,688
Posted By Neil Harvey
You're welcome. I'll post something in the next...

You're welcome. I'll post something in the next couple of days regarding the Oil pump, Crankshaft, crankshaft and rods, and the closure of the case.

A lot has been written about which oil pump to...
Forum: 911 Engine Rebuilding Forum 12-24-2019, 06:59 AM
Replies: 21
Views: 1,665
Posted By Neil Harvey
Maybe you misunderstood my suggestion. You need...

Maybe you misunderstood my suggestion. You need to measure the housing bore of the rod (BE) without the bearing shells installed.
Forum: 911 Engine Rebuilding Forum 12-24-2019, 05:50 AM
Replies: 21
Views: 1,665
Posted By Neil Harvey
Those markings are typical of the housing bore...

Those markings are typical of the housing bore too small. Too much bearing crush will show up as similar markings. Refit the caps, tighten the fasteners how you previously had and measure the housing...
Forum: 911 Engine Rebuilding Forum 12-21-2019, 11:26 AM
Replies: 33
Views: 3,688
Posted By Neil Harvey
I'm keeping my contribution to those areas where...

I'm keeping my contribution to those areas where many may not know or understand. There is already a huge amount written about how to disassemble or assemble these engines. Maybe I can add a few...
Forum: 911 Engine Rebuilding Forum 12-18-2019, 07:34 PM
Replies: 33
Views: 3,688
Posted By Neil Harvey
Cont'd from above. Now the case halves are...

Cont'd from above.

Now the case halves are clean, you can then inspect all the mounting parts for cracks and defects. The case should be crack checked by non-destructive means, Zyglow penetrant...
Forum: 911 Engine Rebuilding Forum 12-18-2019, 07:33 PM
Replies: 33
Views: 3,688
Posted By Neil Harvey
The following is a step by step guide what to...

The following is a step by step guide what to look for, ask for and expect when rebuilding your 911 engine. This is my opinion on what should be done. Itís not the absolute nor is it the only way.
...
Forum: 911 Engine Rebuilding Forum 12-17-2019, 11:08 AM
Replies: 6
Views: 1,024
Posted By Neil Harvey
If there is enough interest in this, we would...

If there is enough interest in this, we would make up a dedicated kit for the air cooled 911 engines.

I'm not sure the best way to make the sensor fitment an easy "to do". When ever we have...
Forum: 911 Engine Rebuilding Forum 12-17-2019, 10:58 AM
Replies: 6
Views: 1,024
Posted By Neil Harvey
John, It comes with a semi terminated...

John,

It comes with a semi terminated harness that has shielded wires to the sensor. For a 911 application the harness is too short and will need to be lengthened. The std kit is made for front...
Forum: 911 Engine Rebuilding Forum 12-16-2019, 11:31 AM
Replies: 6
Views: 1,024
Posted By Neil Harvey
John, I certainly recommend you always get...

John,

I certainly recommend you always get 2nd and 3rd opinions on anything you buy. I posted the suggestion to use this warning device in another post. We sell this and advise many to use it. Its...
Forum: 911 Engine Rebuilding Forum 12-15-2019, 03:33 PM
Replies: 50
Views: 10,546
Posted By Neil Harvey
Yes, these are 993 rocker arms. We use these for...

Yes, these are 993 rocker arms. We use these for adjustable types as they are stronger and lighter than 911 types. 911 rocker arms are cast and 993 arms are forged.

The arms are purchased new,...
Forum: 911 Engine Rebuilding Forum 12-14-2019, 09:51 AM
Replies: 33
Views: 3,688
Posted By Neil Harvey
If you are referencing the radius follower used...

If you are referencing the radius follower used in these engines, they control the valve motion but the lift is still based on the cam lobe. You never want the valve to lose its contact with the cam.
Showing results 1 to 25 of 412

 
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