Shoptalkforums.com

For Your Air Cooled Pleasure!
It is currently Fri Aug 22, 2014 8:42 am

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: type 2 1700 oil blow out filler cap what is the cause
PostPosted: Fri Oct 19, 2012 10:13 am 
Offline

Joined: Fri Oct 19, 2012 9:18 am
Posts: 2
brougth this 76 bus for my son has 73 1700 with 5or 6 rib trans has bad oil blow by out the fill cap will not pull itself up any kind of a grade tuned up new carb new coil runs good just no power on the grades


Top
 Profile  
 
 Post subject: Re: type 2 1700 oil blow out filler cap what is the cause
PostPosted: Fri Oct 19, 2012 11:39 am 
Offline
User avatar

Joined: Wed Oct 03, 2007 3:00 pm
Posts: 1882
The gearing is wrong for the engine. By checking all the basics leak down test, compression test, valve adjustment, timing, fuel mixture you might find a tiny bit of power but not enough to climb hills. It is the same as the guy with a Baja who puts 31 " or taller tires on a stock bug engine first and second gear seem decent, third is iffy and fourth almost useless.


Top
 Profile  
 
 Post subject: Re: type 2 1700 oil blow out filler cap what is the cause
PostPosted: Tue Nov 13, 2012 6:00 pm 
Offline

Joined: Mon Jun 11, 2007 8:48 pm
Posts: 54
do a leak down test, it's probably blowing past the rings pressurizing the crank case, which is blowing out the oil, and the lack of compression causing a lack in power, is the reason why it won't go up hill


Top
 Profile  
 
 Post subject: Re: type 2 1700 oil blow out filler cap what is the cause
PostPosted: Sat Nov 24, 2012 4:02 pm 
Offline

Joined: Fri Oct 14, 2011 4:29 pm
Posts: 48
Also carry out a hot compression test, check the breathers are clear, probably blow by.


Top
 Profile  
 
 Post subject: Re: type 2 1700 oil blow out filler cap what is the cause
PostPosted: Sat Nov 24, 2012 4:10 pm 
Offline
Moderator
User avatar

Joined: Sat Feb 16, 2002 3:01 am
Posts: 17629
Location: Van Alstyne, Texas
A 1700 T4 (in decent condition) works fine on a 6 rib, even pushing a Bus, BTDT.
There's much than the obvious ~100cc displacement between a 1.7L T4 and a 1600DP going on.

Your jugs and/or rings are probably worn out, do compression/leakdown testing as suggested.
The bottom end may be in great shape, the rods can be pulled to inspect the bearings once the pistons are off.
If the rod bearings are good, and the cam/lifters don't have any obvious issues, I'd stop digging, unless you plan on a full rebuild.
Even in that case I'd treat the main bearings carefully as the replacments are expensive and may not fit as well.
The heads should probably be looked at carefully by a t4 specialist.

_________________
Piledrivers extensions of Newtons first law:
A vehicle on jackstands tends to remain that way.
Further:
The longer it stays on jackstands the more money will be needed to get it back off.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group